First Published: August 1, 2022

Last Updated: July 31, 2023

Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Cupertino 17.9.x

Introduction to Cisco Catalyst 9800 Series Wireless Controllers

The Cisco Catalyst 9800 Series Wireless Controllers comprise next-generation wireless controllers (referred to as controller in this document) built for intent-based networking. The Catalyst 9800 Series Wireless Controllers are Cisco IOS XE based and integrate the radio frequency (RF) capabilities from Cisco Aironet with the intent-based networking capabilities of Cisco IOS XE to create a best-in-class wireless experience for your organization.

The Catalyst 9800 controllers are enterprise ready to power your business-critical operations and transform end-customer experiences:

  • The controllers come with high availability (HA) and seamless software updates that are enabled by hot and cold patching. This keeps your clients and services up and running always, both during planned and unplanned events.

  • The controllers come with built-in security, including secure boot, run-time defenses, image signing, integrity verification, and hardware authenticity.

  • The controllers can be deployed anywhere to enable wireless connectivity, for example, on an on-premise device, on cloud (public or private), or embedded on a Cisco Catalyst switch (for SDA deployments) or a Cisco Catalyst access point (AP).

  • The controllers can be managed using Cisco Digital Network Architecture (DNA) Center, programmability interfaces, for example, NETCONF and YANG, or web-based GUI or CLI.

  • The controllers are built on a modular operating system. Open and programmable APIs enable the automation of your day zero to day n network operations. Model-driven streaming telemetry provides deep insights into your network and client health.

The Catalyst 9800 Series controllers are available in multiple form factors to cater to your deployment options:

  • Catalyst 9800 Series Wireless Controller Appliance

  • Catalyst 9800 Series Wireless Controller for Cloud

  • Catalyst 9800 Embedded Wireless Controller for a Cisco switch


Note

All the Cisco IOS-XE programmability-related topics on the Cisco Catalyst 9800 controllers are supported by DevNet, either through community-based support or through DevNet developer support. For more information, go to https://developer.cisco.com.

What's New in Cisco IOS XE Cupertino 17.9.4

Table 1. New and Modified Software Features

Feature Name

Description and Documentation Link

ROW Support for UAE Country

From this release, ROW domain country code United Arab Emirates (AE) is supported on Cisco Catalyst IW9167E Heavy Duty Access Points.

Product Analytics

This feature allows for the collection of non-personal usage device systems information for Cisco products, which helps in continuous product improvements. This feature is supported on the Cisco Catalyst 9800 Series Wireless Controllers (9800-80, 9800-40, 9800-L, and 9800-CL). You can use the the pae command to enable or disable this feature.

The following commands are introduced as part of this feature:

  • pae

  • show product-analytics kpi

  • show product-analytics report

  • show product-analytics stats

Note

 

Turning off Smart Licensing Device Systems Information does not impact other Systems Information collection including from Cisco DNA Center or vManage.

Important: Cisco is constantly striving to advance our products and services. Knowing how you use our products is key to accomplishing this goal. To that end, Cisco will collect device and licensing Systems Information through Cisco Smart Software Manager (CSSM) for product and customer experience improvement, analytics, and adoption. Cisco processes your data in accordance with the Cisco End User License Agreement, the Cisco Privacy Statement and any other applicable agreement with Cisco. To modify your organization’s preferences for device and licensing systems information, use the paecommand. See Cisco Catalyst 9800 Series Wireless Controller Command Reference → pae.

Additional information on this feature can be found here .

What's New in Cisco IOS XE Cupertino 17.9.3

Table 2. New and Modified Software Features

Feature Name

Description and Documentation Link

Cisco Catalyst IW9167E Heavy Duty Access Point

Cisco Catalyst IW9167E Heavy Duty Access Point is supported from this release and can operate as a Wi-Fi 6 AP or Cisco Ultra-Reliable Wireless Backhaul.

Site Load Balancing

This feature allows you to specify a site load for better load balancing.

For more information, see the Chapter Enhanced Site Tag-Based Load Balancing.

Support for KVM/SUSE version 15 SP3 with Cisco Catalyst 9800-CL in Private Cloud

Limited support to SDA Wireless deployments for Cisco Catalyst 9800-CL running on KVM/SUSE version 15 SP3.

Wave 1 Access Points

Support for the following Wave 1 APs are reintroduced from this release.

  • Cisco Aironet 1570 Series Access Point

  • Cisco Aironet 1700 Series Access Point

  • Cisco Aironet 2700 Series Access Point

  • Cisco Aironet 3700 Series Access Point

Note

 

  • Support for these APs does not extend beyond the normal product lifecycle support. Refer to the individual End of Support bulletins.

  • Feature support is on parity with 17.3.x release. Features introduced in 17.4.1 or later are not supported on these APs in 17.9.3 release.

  • You can migrate directly to 17.9.3 from 17.3.x, where x=4c or above.

For more information on support for Wave 1 APs, see the FAQ.

What's New in Cisco IOS XE Cupertino 17.9.2

Table 3. New and Modified Software Features

Feature Name

Description and Documentation Link

AP Fallback to Controllers Using AP Priming Profile

This feature helps to configure primary, secondary, and tertiary controllers for a group of APs matching regular expression (regex) or for an individual AP using priming profiles.

The following commands are introduced:

  • primary (ap prime)

  • secondary (ap prime)

  • tertiary (ap prime)

  • priming-override

  • profile (prime-filter)

  • wireless profile ap priming

  • show ap filters active type priming

  • show ap filters all type priming

  • show wireless profile ap priming all

  • show wireless profile ap priming summary

For more information, see the Chapter AP Fallback to Controllers Using AP Priming Profile.

Country Compliance Support for Cisco Catalyst 9136 Series Access Points and Cisco Catalyst 916x Series Access Points

An additional 75 countries are supported in Cisco Catalyst 916x Series Access Points and Cisco Catalyst 9136 Series Access Points.

For more information about the list of countries that are supported, see the Chapter Regulatory Compliance Domain.

IPv6 Address Tracking for Wireless Clients

Until Cisco IOS XE 17.9.1, the controller supported a maximum of eight IPv6 addresses per wireless client. After eight IPv6 addresses were learnt for a wireless client, the controller dropped that wireless client's data traffic coming with new IPv6 source addresses.

However, in Cisco IOS XE 17.9.2, the controller allows data traffic of the wireless clients coming with new IPv6 source addresses even after eight addresses have been learnt for respective wireless clients. The controller continues to learn new IPv6 addresses of the wireless clients from the wireless clients' control traffic (IPv6 NS/NA and DHCPv6), but keeps track of only a maximum of eight addresses (the latest) per wireless client.

Note

 

In Cisco IOS XE 17.9.2, because the controller allows IPv6 traffic without address tracking beyond the eight IPv6 address limit, some of the features such as, User Defined Network, iPSK Peer-to-Peer Blocking, Management over Wireless, Neighbor Discovery Suppression, IP Theft Detection, and so on, may not work for the wireless clients using more than eight addresses. You can disable the new behavior by enabling the IP Source Guard feature when loading the Cisco IOS XE 17.9.2 images.

The following command is supported:

wireless ipv6 nd ns-forward

For more information, see the Chapter IPv6 Client IP Address Learning.

Support for Cisco Catalyst 9162I Series Wi-Fi 6E Access Points

From Cisco IOS XE Cupertino 17.9.2, Cisco Catalyst 9162I Series Wi-Fi 6E Access Points are supported.

Support for Terminal Doppler Weather Radar Channels 120, 124, 128 for -E Regulatory Domain

Terminal Doppler Weather Radar (TDWR) channels 120, 124, and 128 for the -E regulatory domain are supported in the following APs:

  • Cisco Catalyst 9124 Series Access Points

  • Cisco Catalyst 9130 Series Access Points

UNII-3 Band on ROW Regulatory Domain for UK Cisco Catalyst 9136I and Cisco Wireless 916xI Access Points

From Cisco IOS XE Cupertino 17.9.2, UNII-3 channels are enabled for the country code GB under the -ROW domain on the Cisco Catalyst 9136I and Cisco Wireless 916xI access points. The maximum Tx power on these non-Dynamic Frequency Selection (DFS) channels is 23dBm.

This feature is enabled automatically after you upgrade to Cisco IOS XE Cupertino 17.9.2. Use the show controllers dot11Radio command to verify the channel list information after the upgrade.

Wi-Fi Protected Access 3 Simultaneous Authentication of Equals Hash-to-Element Support with Identity PSK

From Cisco IOS XE Cupertino 17.9.2, the iPSK passphrase is supported for SAE H2E authentication in local mode. During client SAE authentication, the Identity Preshared Key (iPSK) passphrase configured in the client authorization policy in the RADIUS server replaces the one in WLAN profile. Hence, the use of unique preshared keys for individuals is considered as a more secure and granular authentication scheme than using a common key for all the users in WLAN. If iPSK passphrase is not configured in the authorization policy, SAE H2E falls back to the passphrase in the WLAN profile.

For more information, see the Chapter Wi-Fi Protected Access 3.

MIBs

The following MIB is newly added or modified:

  • CISCO-ENVMON-MIB

What's New in Cisco IOS XE Cupertino 17.9.1

Table 4. New and Modified Software Features

Feature Name

Description and Documentation Link

802.11r Fast Transition for SAE (FT-SAE) Authenticated Clients

From this release, the Fast Transition supports SAE-based Fast Roaming along with PMK caching.

The following command is introduced:

  • security wpa akm ft sae

For more information, see the chapter 802.11r BSS Fast Transition.

Access Points Survey Mode Support in Cisco Catalyst 9136 Series Access Points, Cisco Catalyst 9164 Series Wi-Fi 6E Access Points, and Cisco Catalyst 9166 Series Wi-Fi 6E Access Points

In this release, you can use the ap-type survey command to switch the AP to the survey mode. The AP GUI is also enhanced to support the survey mode.

This feature is supported on Cisco Catalyst 9136 Series APs, Cisco Catalyst 9164 Series Wi-Fi 6E APs, and Cisco Catalyst 9166 Series Wi-Fi 6E APs.

For more information, see the chapter Access Points Survey Mode.

Authentication and Accounting Support for Both Radius and TACACS+ Servers for Standby Unit in an SSO Pair

From this release, Authentication and Accounting is supported on RADIUS and TACACS+ servers for standby HA unit using RMI interface:

  • RADIUS Accounting

  • TACACS+ Authentication

  • TACACS+ Accounting

For more information, see the chapter Redundancy Management Interface.

BLE Concurrent Scanning and Beaconing

From this release, BLE concurrent scanning and beaconing is supported on Cisco Catalyst Wi-Fi 6 APs in basic mode or Cisco IOx mode. The BLE radio on an AP can stop a scan for beacon transmission, and return to the scan after completing the beacon transmission.

For more information, see the chapter Cisco Hyperlocation.

Chargeable User Identity in RADIUS Accounting

Chargeable User Identity (CUI) is a unique identifier for a client visiting a network. This attribute can be used as an alternative for the client’s username as part of the authentication process.

The following command is introduced:

  • access-session wireless cui-enable

For more information, see the chapter RADIUS Accounting.

Cisco AI-Enhanced RRM Supports Wi-Fi 6E

From this release, the Cisco's AI-Enhanced RRM feature in Cisco DNA Center supports Wi-Fi 6E.

For more information, see the chapter Radio Resource Management.

CleanAir Pro Scanning Support in 2.4-GHz and 5-GHz Bands

The CleanAir Pro Scanning feature monitors and reports the different categories of non-Wi-Fi interference in the 2.4-GHz and 5-GHz bands.

The following commands are introduced:

  • ap dot11 6ghz cleanair

  • ap dot11 cleanair alarm air-quality

  • ap dot11 cleanair alarm device cont-tx

  • ap dot11 cleanair alarm unclassified

For more information, see the chapter CleanAir.

Concurrent Radio Support for Workgroup Bridge Wireless Clients on Cisco Catalyst Access Points

From this release onwards, Workgroup Bridge supports one radio for uplink (backhaul) connectivity and another radio for serving wireless clients. This feature is supported on Cisco Catalyst 9105 APs, Cisco Catalyst 9115 APs, and Cisco Catalyst 9120 APs.

The following commands are introduced on the AP console:

  • configure ssid-profile ssid dtim-period

  • configure dot11Radio wlan add

  • configure dot11Radio wlan delete

  • configure dot11Radio channel

  • configure dot11Radio beacon-interval

  • configure radius address port

  • configure qos profile

  • configure ssid-profile ssid qos profile

For more information, see the chapter Workgroup Bridges.

Configuring mDNS Location-Based Filtering Using Location Group

From this release, the AP grouping for mDNS is extended to include AP locations.

The following commands are introduced:

  • wireless rule application mdns

  • group-method

For more information, see the chapter Multicast Domain Name System.

Configuring the AP Console

This feature allows you to configure the AP console from the controller.

The following command is introduced:

  • console

For more information, see the chapter Configuring the AP Console.

Flexible Radio Assignment Support in Cisco Catalyst 9166I Series Wi-Fi 6E Access Points

From this release onwards, the dual-band radio in Cisco Catalyst 9166I Series Wi-Fi 6E Access Points offers the ability to serve either in 5-GHz or 6-GHz band, as monitor or sniffer on the same AP.

The following commands are introduced:

  • ap fra 5-6ghz

  • ap fra 5-6ghz freeze

  • ap fra 5-6ghz interval

  • ap dot11 6ghz rf-profile

  • client-aware-fra

  • show ap fra 5-6ghz

For more information, see the chapter Cisco Flexible Radio Assignment.

High Availability Deployment for Application Centric Infrastructure (ACI) Network

This feature avoids interleaving traffic between the old and new active controller using the following functionalities:

  • Bringing down the Wireless Management Interface (WMI) faster.

  • Disabling fast switchover notifications.

The following commands are introduced:

  • no redun-management fast-switchover

  • redun-management garp-retransmit burst

  • no redun-management garp-retransmit initial

For more information, see the chapter High Availability.

Interim Accounting

From this release, the no accounting-interim command is introduced under the policy profile to disable interim accounting.

For more information, see the chapter Interim Accounting.

Link Layer Discovery Protocol Support in Standby Controller

From this release, the Link Layer Discovery Protocol (LLDP) process is supported in both active and standby controllers.

The following commands are introduced:

  • lldp run

  • lldp holdtime

  • lldp reinit

  • lldp timer

  • lldp tlv-select

  • show lldp

  • show lldp neighbors

  • show lldp neighbors detail

  • show lldp errors

  • show lldp traffic

For more information, see the chapter Link Layer Discovery Protocol.

Logging Web UI-Based Configuration Changes in TACACS+ Server

This feature logs all the configuration changes made in the controller's UI.

For more information, see the chapter Web UI Configuration Command Accounting in TACACS+ Server.

Management Mode Migration in Cisco Catalyst 916x Series Wi-Fi 6E Access Points (CW9164 and CW9166)

From this release onwards, in Cisco Catalyst 916x APs (CW9164 and CW9166) you can migrate management modes between DNA Management Mode (controller based) and Meraki Management Mode, depending on the requirement.

The following commands are introduced:

  • ap name management-mode meraki

  • clear ap meraki stats

  • show ap management-mode meraki capability summary

  • show ap management-mode meraki failure summary

  • show ap management-mode meraki change summary

For more information, see the chapter Management Mode Migration in Cisco Catalyst 916x Series Wi-Fi 6E Access Points.

Mesh Backhaul RRM Support

From this release onwards, RRM DCA runs on mesh backhaul in auto mode, when you configure the wireless mesh backhaul rrm auto-dca command. For APs that do not have dedicated (RHL) radios, DCA is triggered by running commands in privileged EXEC mode. Mesh RRM DCA runs in the background for RHL radio enabled APs.

The following commands are introduced:

  • ap dot11 rrm channel-update mesh

  • ap dot11 rrm channel-update mesh bridge-group

  • ap name dot11 rrm channel update mesh

  • show wireless mesh rrm dca status

  • wireless mesh backhaul rrm auto-dca

For more information, see the chapter Mesh Access Points.

Mutual Authentication for gRPC Telemetry

A new gRPC TLS profile that contains a pair of trustpoints was added to the telemetry configuration so that a client ID certificate can be specified for mutual authentication. This new profile can be used instead of the trustpoint containing the server CA certificate when configuring the receiver profile. The trustpoint containing the server CA certificate is now configured as part of the gRPC TLS profile.

For more information, see the Programmability Configuration Guide.

Quality of Service Gaps and Fixes in Cisco Catalyst 9800 Series Wireless Controllers

This feature addresses the gaps in the existing metal policy implementation with reference to RFC 8325.

With this enhancement, the existing hard-coded policy-maps and class-maps associated with each metal policy is modified as per RFC 8325, so that upstream and downstream ceiling is achieved.

For more information, see the chapter Quality of Service.

Regulatory Domain Reduction

From Cisco IOS XE Cupertino 17.9.1, more countries are added to the Rest of the World (RoW) domain.

For more information, see the chapter Regulatory Compliance Domain.

Rogue Detection Enhancements on Cisco Catalyst 9164 and 9166 Series Wi-Fi 6E Access Points

In this release, the rogue detection and containment functionality is enhanced to handle dual 5-GHz configuration on Cisco Catalyst 9164 Series Wi-Fi 6E APs and Cisco Catalyst 9166 Series Wi-Fi 6E APs.

Rogue Full Scale Quotas and Priorities

The Rogue Full Scale Quotas and Priorities feature helps you to improve the scalability, performance, manageability, and serviceability of rogue APs.

The following commands are introduced:

  • wireless wps rogue scale quota

  • wireless wps rogue scale priority

  • wireless wps rogue scale mode hybrid

For more information, see the chapter Managing Rogue Devices.

RUM Report Throttling

For all topologies where the product instance initiates communication, the minimum reporting frequency is throttled to one day. This means the product instance does not send more than one RUM report a day.

The affected topologies are: Connected Directly to CSSM, Connected to CSSM Through CSLU (product instance-initiated communication), CSLU Disconnected from CSSM (product instance-initiated communication), and SSM On-Prem Deployment (product instance-initiated communication).

This resolves the problem of too many RUM reports being generated and sent for certain licenses. It also resolves the memory-related issues and system slow-down that was caused by an excessive generation of RUM reports.

You can override the reporting frequency throttling, by entering the license smart sync command in privileged EXEC mode. This triggers an on-demand synchronization with CSSM or CSLU, or SSM On-Prem, to send and receive any pending data.

RUM report throttling also applies to the Cisco IOS XE Amsterdam 17.3.6 and later releases of the 17.3.x train, and Cisco IOS XE Bengaluru 17.6.4 and later releases of the 17.6.x train. From Cisco IOS XE Cupertino 17.9.1, RUM report throttling is applicable to all subsequent releases.

Site-Based Rolling AP Upgrade in N+1 Networks

The Site-Based Rolling AP Upgrade in an N+1 Network feature allows you to perform a staggered upgrade of APs in each site in an N+1 deployment.

The following commands are introduced:

  • ap upgrade staggered iteration completion

  • ap upgrade staggered iteration error

  • ap upgrade staggered iteration timeout

  • show ap upgrade site

For more information, see the chapter Site-Based Rolling AP Upgrade in an N+1 Network.

Site-Based Rolling AP Upgrade using Netconf/YANG Models

From Cisco IOS XE Cupertino 17.9.1, you can use NETCONF/YANG models to configure site-based APSP and N+1 hitless software upgrade.

For more information, see the Programmability Configuration Guide at: https://www.cisco.com/c/en/us/support/ios-nx-os-software/ios-xe-17/products-installation-and-configuration-guides-list.html

For more information on the YANG models, see the Cisco IOS XE Programmability Configuration Guide and YANG Data Models on Github at: https://github.com/YangModels/yang/tree/master/vendor/cisco/xe.

You can contact the Developer Support Community for NETCONF/YANG features at:

https://developer.cisco.com/

Support 6-GHz radio for Canada

In this release, Canada (CA) is added to the list of countries supporting 802.11 6-GHz radio band.

Support for Cisco Catalyst 9164I Series Wi-Fi 6E Access Points and Cisco Catalyst 9166I Series Wi-Fi 6E Access Points

From this release onwards, Cisco Catalyst 9164I Series Wi-Fi 6E Access Points and Cisco Catalyst 9166I Series Wi-Fi 6E Access Points are supported.

Support for RFC 5580 Location Attributes in the Controller

This feature uses the RFC 5580 location attributes to convey location-related information for authentication and accounting exchanges.

The following commands are introduced:

  • radius-server attribute wireless location delivery out-of-band

  • location civic-location identifier

  • location geo-location identifier

  • location operator identifier

  • location civic-location-id

  • location geo-location-id

  • location operator-id

  • radius-server attribute wireless location civic-location-id

  • radius-server attribute wireless location geo-location-id

  • radius-server attribute wireless location operator-id

For more information, see the chapter Configuring RFC 5580 Location Attributes.

VLAN Group to Support DHCP and Static IP Clients

The VLAN Group to Support DHCP and Static IP Clients feature aims to handle the network access of clients whose static IP address is not a part of the VLAN's IP list.

For more information, see the chapter VLAN Groups.

Walkme for Usage and Troubleshooting

The following new workflows have been implemented:

  • AP Join troubleshooting: A collection of workflows that takes you through various troubleshooting commands to find out why AP join has failed.

  • FlexConnect workflow: A collection of workflows that show how to configure FlexConnect.

Wireless Rogue Channel Width Support

In this release, the Wireless Rogue Channel Width feature is supported.

Rogue channel width changes are implemented at the TDL level. Because the telemetry child table cannot be accessed by Cisco DNA Center because of the TDL limitation, all radio band information is now available in the top-level table. Telemetry data can be validated through the SSH Netconf console to check the correct radio band with channel width values.

TrustSec Support in Cisco Catalyst Wi-Fi 6 Access Points

From this release onwards, Cisco Catalyst Wi-Fi 6 Access Points support TrustSec feature with the controller.

Note

 

The Wi-Fi 6 Access Points support the Software-Defined Access solution with Security Group Tag (SGT) feature in earlier releases.

Zero Wait Dynamic Frequency Selection

When an access point (AP) moves to Dynamic Frequency Selection (DFS) channel, a service outage can occur. This feature helps to avoid service outages in regulatory domains. As of now, the US and Europe are the only supported domains. For more information, see the chapter Dynamic Frequency Selection.

Table 5. New and Modified GUI Features

Feature Name

GUI Path

802.11r Fast Transition for SAE Authenticated Clients

  • Configuration > Tags & Profiles > WLANs

Additional Client Information on Client 360 View

  • Monitoring > Wireless > Clients > 360

Configuring the AP Console

  • Configuration > Tags & Profiles > AP Join

Flexible Radio Assignment Support in Cisco Catalyst 9166I Series Wi-Fi 6E Access Points

  • Configuration > Radio Configurations > RRM > FRA

Management Mode Migration in Cisco Catalyst 916x Series Wi-Fi 6E Access Points (CW9164 and CW9166)

  • Configuration > Wireless > Migrate to Meraki Management Mode

Site-based Rolling AP Upgrade in N+1 Networks

  • Administration > Software Management

MIBs

The following MIBs are newly added or modified:

  • AIRESPACE-WIRELESS-MIB

  • CISCO-LWAPP-AP-MIB

  • CISCO-LWAPP-MOBILITY-MIB

  • CISCO-LWAPP-RF-MIB

  • CISCO-LWAPP-RRM-MIB

  • CISCO-LWAPP-SI-MIB

  • CISCO-LWAPP-TAGS-MIB

  • CISCO-LWAPP-WLAN-MIB

  • CISCO-LWAPP-WLAN-SECURITY-MIB

Behavior Changes

  • The Cisco Centralized Key Management (CCKM) feature is being deprecated from Cisco IOS XE Dublin 17.10.x.

  • The J2 country code is not supported for Japan. Use J4 as country code for Japan, instead of J2.

  • The following commands are effective only in service-peer mode:

    For information on service-peer, see the Understanding Local Area Bonjour for Wireless FlexConnect Mode section in the chapter Configuring Local Area Bonjour for Wireless FlexConnect Mode.

    • query-response

    • sdg-agent

    • service-announcement-count

    • service-announcement-timer

    • service-mdns-query

    • service-query-count

    • service-query-timer

    • service-receiver-purge

    • active-response

  • If wireless multicast is disabled in service-peer mode, the mDNS packets are sent to each CAPWAP interface. If wireless multicast and multicast tunnel are enabled, the mDNS packets are sent over multicast tunnel.

  • The install commands cannot be executed if there is any unsaved configuration with or without the prompt-level option.

  • If location is not specified in the service policy, the location is considered from the global mDNS gateway. By default, the global mDNS gateway location is defined as lss .

  • When country is configured in the AP profile, you cannot override it using the per-AP country configuration.

  • You cannot see 802.1x passwords in cleartext from this release because they are encrypted. If you downgrade to an earlier image that doesn't support an encrypted password, the APs will get stuck and repeatedly fail the dot1x authentication due to wrong credentials. You will need to disable 802.1x on the AP switch port to allow the AP to join the controller before setting the cleartext password.

  • The output of the following show commands are updated:

    • show ap dot11 cleanair device type

    • show ap name dot11 cleanair device

    • show ap dot11 5ghz SI device type

    • show ap name dot11 SI device

  • The following commands are introduced:

    • ap name dot11 24ghz cleanair

    • ap name dot11 5ghz cleanair

    • ap name dot11 6ghz cleanair

    The following commands are deprecated:

    • ap name dot11 24ghz slot cleanair

    • ap name dot11 5ghz slot cleanair

    • ap name dot11 dual-band cleanair band

    • ap name dot11 ap name dot11 dual-band slot cleanair band

    • ap name dot11 dual-band cleanair band

    • ap name dot11 ap name dot11 dual-band slot cleanair band

    • ap name dot11 ap name dot11 dual-band slot cleanair

    • ap name dot11 rx-dual-band slot cleanair band

    • ap name dot11 rx-dual-band slot cleanair

  • Information on FIPS is added to the output of the AP show security system state command.

  • Device analytics reports are cached for five minutes before they are made available through the show wireless client mac stats pc-analytics command.

  • TLS 1.3 is supported for HTTPS communication on web administration from this release onwards.

  • The following table describes the deprecated and replaced show commands:

    Table 6. Deprecated and Replaced Show Commands

    Deprecated Commands

    Replaced Commands

    show ap persona meraki capability summary

    		 show ap management-mode meraki capability summary

    show ap persona meraki change summary

    show ap management-mode meraki change summary

    show ap persona meraki failure summary

    show ap management-mode meraki failure summary

  • The ap name <ap-name> persona meraki [force] [noprompt] command is deprecated and replaced with ap name <ap-name> management-mode meraki [force] [noprompt] command.

  • The USB port in the AP profile is disabled by default.

    If you are using Cisco IOx application with USB dongles, re-configure the USB port in the AP profile on reload, to ensure that the USB port is enabled before the APs join.

    For more information about the workaround, see the details in CSCvz07021.

Interactive Help

The Cisco Catalyst 9800 Series Wireless Controller GUI features an interactive help that walks you through the GUI and guides you through complex configurations.

You can start the interactive help in the following ways:

  • By hovering your cursor over the blue flap at the right-hand corner of a window in the GUI and clicking Interactive Help.

  • By clicking Walk-me Thru in the left pane of a window in the GUI.

  • By clicking Show me How displayed in the GUI. Clicking Show me How triggers a specific interactive help that is relevant to the context you are in.

    For instance, Show me How in Configure > AAA walks you through the various steps for configuring a RADIUS server. Choose Configuration> Wireless Setup > Advanced and click Show me How to trigger the interactive help that walks you through the steps relating to various kinds of authentication.

The following features have an associated interactive help:

  • Configuring AAA

  • Configuring FlexConnect Authentication

  • Configuring 802.1x Authentication

  • Configuring Local Web Authentication

  • Configuring OpenRoaming

  • Configuring Mesh APs


Note

If the WalkMe launcher is unavailable on Safari, modify the settings as follows:

  1. Choose Preferences > Privacy.

  2. In the Website tracking section, uncheck the Prevent cross-site tracking check box to disable this action.

  3. In the Cookies and website data section, uncheck the Block all cookies check box to disable this action.

Important Notes

  • To migrate public IP address from 16.12.x to 17.x. ensure that you configure the service internal command. If you do not configure the service internal command, the IP address does not carry forward.

Supported Hardware

The following table lists the supported virtual and hardware platforms. (See Supported PIDs and Ports for the list of supported modules.)

Table 7. Supported Virtual and Hardware Platforms

Platform

Description

Cisco Catalyst 9800-80 Wireless Controller

A modular wireless controller with up to 100-GE modular uplinks and seamless software updates.

The controller occupies a 2-rack unit space and supports multiple module uplinks.

Cisco Catalyst 9800-40 Wireless Controller

A fixed wireless controller with seamless software updates for mid-size to large enterprises.

The controller occupies a 1-rack unit space and provides four 1-GE or 10-GE uplink ports.

Cisco Catalyst 9800-L Wireless Controller

The Cisco Catalyst 9800-L Wireless Controller is the first low-end controller that provides a significant boost in performance and features.

Cisco Catalyst 9800 Wireless Controller for Cloud

A virtual form factor of the Catalyst 9800 Wireless Controller that can be deployed in a private cloud (supports VMware ESXi, Kernel-based Virtual Machine [KVM], Microsoft Hyper-V, and Cisco Enterprise NFV Infrastructure Software [NFVIS] on Enterprise Network Compute System [ENCS] hypervisors), or in the public cloud as Infrastructure as a Service (IaaS) in Amazon Web Services (AWS), Google Cloud Platform (GCP) marketplace, and Microsoft Azure.

Cisco Catalyst 9800 Embedded Wireless Controller for Switch

The Catalyst 9800 Wireless Controller software for the Cisco Catalyst 9000 switches brings the wired and wireless infrastructure together with consistent policy and management.

This deployment model supports only Software Defined-Access (SDA), which is a highly secure solution for small campuses and distributed branches.

The following table lists the host environments supported for private and public cloud.

Table 8. Supported Host Environments for Public and Private Cloud

Host Environment

Software Version

VMware ESXi

  • VMware ESXi vSphere 6.0, 6.5, 6.7, and 7.0

  • VMware ESXi vCenter 6.0, 6.5, 6.7, and 7.0

KVM

  • Linux KVM-based on Red Hat Enterprise Linux 7.6, 7.8, and 8.2

  • Ubuntu 16.04.5 LTS, Ubuntu 18.04.5 LTS, Ubuntu 20.04.5 LTS

  • KVM/SUSE version 15 SP3 (restricted to SDA Wireless deployments)

AWS

AWS EC2 platform

NFVIS

ENCS 3.8.1 and 3.9.1

GCP

GCP marketplace

Microsoft Hyper-V

Windows 2019 Server and Windows Server 2016 (Version 1607) with Hyper-V Manager (Version 10.0.14393)

Microsoft Azure

Microsoft Azure

The following table lists the supported Cisco Catalyst 9800 Series Wireless Controller hardware models.

The base PIDs are the model numbers of the controller.

The bundled PIDs indicate the orderable part numbers for the base PIDs that are bundled with a particular network module. Running the show version , show module , or show inventory command on such a controller (bundled PID) displays its base PID.

Note that unsupported SFPs will bring down a port. Only Cisco-supported SFPs (GLC-LH-SMD and GLC-SX-MMD) should be used on the route processor (RP) ports of C9800-80-K9 and C9800-40-K9.

Table 9. Supported PIDs and Ports

Controller Model

Description

C9800-CL-K9

Cisco Catalyst Wireless Controller as an infrastructure for cloud.

C9800-80-K9

Eight 1/10-Gigabit Ethernet SFP or SFP+ ports and two power supply slots.

C9800-40-K9

Four 1/10-Gigabit Ethernet SFP or SFP+ ports and two power supply slots.

C9800-L-C-K9

  • 4x2.5/1-Gigabit ports

  • 2x10/5/2.5/1-Gigabit ports

C9800-L-F-K9

  • 4x2.5/1-Gigabit ports

  • 2x10/1-Gigabit ports

The following table lists the supported SFP models.

Table 10. Supported SFPs

SFP Name

C9800-80-K9

C9800-40-K9

C9800-L-C-K9

C9800-L-F-K9

DWDM-SFP10G-30.33

Supported

Supported

—

—

DWDM-SFP10G-61.41

Supported

Supported

—

—

FINISAR-LR – FTLX1471D3BCL

1

Supported

Supported

—

Supported

FINISAR-SR – FTLX8574D3BCL

Supported

Supported

—

Supported

GLC-BX-D

Supported

Supported

Supported

Supported

GLC-BX-U

Supported

Supported

Supported

Supported

GLC-EX-SMD

Supported

Supported

—

—

GLC-LH-SMD

Supported

Supported

Supported

—

GLC-SX-MMD

Supported

Supported

Supported

Supported

GLC-T

Supported

—

Supported

—

GLC-TE

Supported

Supported

Supported

Supported

GLC-ZX-SMD

Supported

Supported

Supported

Supported

QSFP-100G-LR4-S

Supported

—

—

—

QSFP-100G-SR4-S

Supported

—

—

—

QSFP-40G-BD-RX

Supported

—

—

—

QSFP-40G-ER4

Supported

—

—

—

QSFP-40G-LR4

Supported

—

—

—

QSFP-40G-LR4-S

Supported

—

—

—

QSFP-40G-SR4

Supported

—

—

—

QSFP-40G-SR4-S

Supported

—

—

—

QSFP-40GE-LR4

Supported

—

—

—

SFP-10G-AOC10M

Supported

Supported

—

—

SFP-10G-AOC1M

Supported

Supported

—

—

SFP-10G-AOC2M

Supported

Supported

—

—

SFP-10G-AOC3M

Supported

Supported

—

—

SFP-10G-AOC5M

Supported

Supported

—

—

SFP-10G-AOC7M

Supported

Supported

—

—

SFP-10G-ER

Supported

Supported

—

—

SFP-10G-LR

Supported

Supported

—

Supported

SFP-10G-LR-S

Supported

Supported

—

Supported

SFP-10G-LR-X

Supported

Supported

—

Supported

SFP-10G-LRM

Supported

Supported

—

Supported

SFP-10G-SR

Supported

Supported

—

Supported

SFP-10G-SR-S

Supported

Supported

—

Supported

SFP-10G-SR-X

Supported

Supported

—

Supported

SFP-10G-ZR

Supported

Supported

—

—

SFP-H10GB- ACU10M

Supported

Supported

—

Supported

SFP-H10GB- ACU7M

Supported

Supported

—

Supported

SFP-H10GB- CU1.5M

Supported

Supported

—

Supported

SFP-H10GB-CU1M

Supported

Supported

—

Supported

SFP-H10GB-CU2.5M

Supported

Supported

—

Supported

SFP-H10GB-CU2M

Supported

Supported

—

Supported

SFP-H10GB-CU3M

Supported

Supported

—

Supported

SFP-H10GB-CU5M

Supported

Supported

—

Supported
1 The FINISAR SFPs are not Cisco specific and some of the features, such as DOM, may not work properly.

Optics Modules

The Cisco Catalyst 9800 Series Wireless Controller supports a wide range of optics. The list of supported optics is updated on a regular basis. See the tables at the following location for the latest transceiver module compatibility information:

https://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html

Network Protocols and Port Matrix

Table 11. Cisco Catalyst 9800 Series Wireless Controller - Network Protocols and Port Matrix

Source

Destination

Protocol

Destination Port

Source Port

Description
Any

Cisco Catalyst 9800 Series Wireless Controller

TCP

22

Any

SSH
Any

Cisco Catalyst 9800 Series Wireless Controller

TCP

23

Any

Telnet
Any

Cisco Catalyst 9800 Series Wireless Controller

TCP

80

Any

HTTP
Any

Cisco Catalyst 9800 Series Wireless Controller

TCP

443

Any

HTTPS
Any

Cisco Catalyst 9800 Series Wireless Controller

UDP

161

Any

SNMP Agent
Any

Any

UDP

5353

5353

mDNS
Any

Cisco Catalyst 9800 Series Wireless Controller

UDP

69

69

TFTP
Any

DNS Server

UDP

53

Any

DNS
Any

Cisco Catalyst 9800 Series Wireless Controller

TCP

830

Any

NetConf
Any

Cisco Catalyst 9800 Series Wireless Controller

TCP

443

Any

REST API

Any

WLC Protocol

UDP

1700

Any

Receive CoA packets.
AP

Cisco Catalyst 9800 Series Wireless Controller

UDP

5246

Any

CAPWAP Control
AP

Cisco Catalyst 9800 Series Wireless Controller

UDP

5247

Any

CAPWAP Data
AP

Cisco Catalyst 9800 Series Wireless Controller

UDP

5248

Any

CAPWAP MCAST

AP

Cisco DNA Center

UDP

57778

Any

Intelligent capture and RF telemetry

AP

AP

UDP

16670

Any

Client Policies (AP-AP)

Cisco Catalyst 9800 Series Wireless Controller

Cisco Catalyst 9800 Series Wireless Controller

UDP

16666

16666

Mobility Control

Cisco Catalyst 9800 Series Wireless Controller

SNMP

UDP

162

Any

SNMP Trap

Cisco Catalyst 9800 Series Wireless Controller

RADIUS

UDP

1812/1645

Any

RADIUS Auth

Cisco Catalyst 9800 Series Wireless Controller

RADIUS

UDP

1813/1646

Any

RADIUS ACCT

Cisco Catalyst 9800 Series Wireless Controller

TACACS+

TCP

49

Any

TACACS+

Cisco Catalyst 9800 Series Wireless Controller

Cisco Catalyst 9800 Series Wireless Controller

UDP

16667

16667

Mobility

Cisco Catalyst 9800 Series Wireless Controller

NTP Server

UDP

123

Any

NTP

Cisco Catalyst 9800 Series Wireless Controller

Syslog Server

UDP

514

Any

SYSLOG

Cisco Catalyst 9800 Series Wireless Controller

NetFlow Server

UDP

9996

Any

NetFlow

Cisco Catalyst 9800 Series Wireless Controller

Cisco Connected Mobile Experiences (CMX)

UDP

16113

Any

NMSP
Cisco DNA Center

Cisco Catalyst 9800 Series Wireless Controller

TCP

32222

Any

Device Discovery

Supported APs

The following Cisco APs are supported in this release.

Indoor Access Points

  • Cisco Catalyst 9105AXI Access Points

    • VID 04 or later - supported from 17.9.2

    • VID 03 or earlier - supported in all 17.9.x releases

  • Cisco Catalyst 9105AXW Access Points

    • VID 02 or later - supported from 17.9.2

    • VID 01 or earlier - supported in all 17.9.x releases

  • Cisco Catalyst 9115AX (I/E) Access Points

  • Cisco Catalyst 9117AXI Access Points

  • Cisco Catalyst 9120AX (I/E) Access Points

    • VID 07 or later - supported from 17.9.2

    • VID 06 or earlier - supported in all 17.9.x releases

  • Cisco Catalyst 9120AXP Access Points

  • Cisco Catalyst 9130AX (I/E) Access Points

    • VID 03 or later - supported from 17.9.2

    • VID 02 or earlier - supported in all 17.9.x releases

    (For information about Cisco Catalyst 9105, 9120, or 9130 Access Points version support, see the Field Notice 72424.)

  • Cisco Catalyst 9136I Access Points

  • Cisco Catalyst 9162I Series Access Points - supported from 17.9.2

  • Cisco Catalyst 9164I Series Access Points

  • Cisco Catalyst 9166I Series Access Points

  • Cisco Aironet 1800I, 1815 (I/W), 1830 (I), 1840 (I), and 1850 (I/E) Access Points

  • Cisco Aironet 2800 (I/E) Series Access Points

  • Cisco Aironet 3800 (I/E/P) Series Access Points

  • Cisco Aironet 4800 Series Access Points

Support is reintroduced for the following APs from 17.9.3:

  • Cisco Aironet 1570 Series Access Points

  • Cisco Aironet 1700 Series Access Points

  • Cisco Aironet 2700 Series Access Points

  • Cisco Aironet 3700 Series Access Points

Outdoor Access Points

  • Cisco Aironet 1540 Series Access Points

  • Cisco Aironet 1560 Series Access Points

  • Cisco Industrial Wireless 3700 Series Access Points

  • Cisco Catalyst Industrial Wireless 6300 Heavy Duty Series Access Point

  • Cisco 6300 Series Embedded Services Access Point

  • Cisco Catalyst 9124AX (I/D) Access Points

  • Cisco Catalyst IW9167 (E) Heavy Duty Access Point - supported from 17.9.3

Integrated Access Points

  • Integrated Access Point on Cisco 1100 ISR (ISR-AP1100AC-x, ISR-AP1101AC-x, and ISR-AP1101AX-x)

Network Sensor

  • Cisco Aironet 1800s Active Sensor

Pluggable Modules

  • Wi-Fi 6 Pluggable Module for Industrial Routers

Supported Access Point Channels and Maximum Power Settings

Supported access point channels and maximum power settings on Cisco APs are compliant with the regulatory specifications of channels, maximum power levels, and antenna gains of every country in which the access points are sold. For more information about the supported access point transmission values in Cisco IOS XE software releases, see the Detailed Channels and Maximum Power Settings document at https://www.cisco.com/c/en/us/support/ios-nx-os-software/ios-xe-17/products-technical-reference-list.html.

For information about Cisco Wireless software releases that support specific Cisco AP modules, see the "Software Release Support for Specific Access Point Modules" section in the Cisco Wireless Solutions Software Compatibility Matrix document.

Compatibility Matrix

The following table provides software compatibility information.

Table 12. Compatibility Information

Cisco Catalyst 9800 Series Wireless Controller Software

Cisco Identity Services Engine

Cisco Prime Infrastructure

Cisco AireOS-IRCM Interoperability

Cisco DNA Center

Cisco DNA Spaces - Connector

Cisco DNA Spaces - On Premise

Cupertino 17.9.4

3.2

3.1

3.0

2.7

2.6

2.4

3.10.2

8.10.183.0

8.10.182.0

8.10.181.0

8.10.171.0

8.10.162.0

8.10.151.0

8.10.142.0

8.10.130.0

8.8.130.0

8.5.176.2

8.5.182.104

See Cisco DNA Center Compatibility Information

2.3.1

2.3

2.2

10.6.3

Cupertino 17.9.3

3.0

2.7

2.6

2.4

3.10.2

8.10.183.0

8.10.182.0

8.10.181.0

8.10.171.0

8.10.162.0

8.10.151.0

8.10.142.0

8.10.130.0

8.8.130.0

8.5.176.2

8.5.182.104

See Cisco DNA Center Compatibility Information

2.3.1

2.3

2.2

10.6.3

Cupertino 17.9.2

3.0

2.7

2.6

2.4

3.10.2

8.10.183.0

8.10.182.0

8.10.181.0

8.10.171.0

8.10.162.0

8.10.151.0

8.10.142.0

8.10.130.0

8.8.130.0

8.5.176.2

8.5.182.104

See Cisco DNA Center Compatibility Information

2.3.1

2.3

2.2

10.6.3

Cupertino 17.9.1

3.0

2.7

2.6

2.4

3.10 MR1

8.10.181.0

8.10.171.0

8.10.162.0

8.10.151.0

8.10.142.0

8.10.130.0

8.8.130.0

8.5.176.2

8.5.182.104

See Cisco DNA Center Compatibility Information

2.3.1

2.3

2.2

10.6.3

GUI System Requirements

The following subsections list the hardware and software required to access the Cisco Catalyst 9800 Controller GUI.

Table 13. Hardware Requirements

Processor Speed

DRAM

Number of Colors

Resolution

Font Size

233 MHz minimum2

512 MB3

256

1280 x 800 or higher

Small
2 We recommend 1 GHz.
3 We recommend 1-GB DRAM.

Software Requirements

Operating Systems:

  • Windows 7 or later

  • Mac OS X 10.11 or later

Browsers:

  • Google Chrome: Version 59 or later (on Windows and Mac)

  • Microsoft Edge: Version 40 or later (on Windows)

  • Safari: Version 10 or later (on Mac)

  • Mozilla Firefox: Version 60 or later (on Windows and Mac)


Note

Firefox Version 63.x is not supported.

The controller GUI uses Virtual Terminal (VTY) lines for processing HTTP requests. At times, when multiple connections are open, the default number of VTY lines of 15 set by the device might get exhausted. Therefore, we recommend that you increase the number of VTY lines to 50.

To increase the VTY lines in a device, run the following commands in the following order:

  1. device# configure terminal

  2. device(config)# line vty 50

    A best practice is to configure the service tcp-keepalives to monitor the TCP connection to the device.

  3. device(config)# service tcp-keepalives-in

  4. device(config)# service tcp-keepalives-out

Before You Upgrade

Ensure that you familiarize yourself with the following points before proceeding with the upgrade:

APs running Cisco IOS-XE 17.9.3 might encounter issues when attempting to upgrade their software due to insufficient space in the /tmp directory. When the /tmp space on the AP becomes full, it prevents the download of the new AP image. In such instances, we recommend that you reboot the AP.

Wave 2 APs may get into a boot loop when upgrading software over a WAN link. For more information, see: https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/220443-how-to-avoid-boot-loop-due-to-corrupted.html.


Caution

During controller upgrade or reboot, if route processor ports are connected to any Cisco switch, ensure that the route processor ports are not flapped (shut/no shut process). Otherwise, it may lead to a kernel crash.


Note

  • ISSU feature is supported only within and between major releases, for example, 17.3.x (within a release) and 17.3.x to 17.6.x (among major releases).

  • Controller upgrade from Cisco IOS XE Bengaluru 17.3.x to Cisco IOS XE Bengaluru 17.6.x or Cisco IOS XE Cupertino 17.9.x or later using ISSU may fail if the domain command is configured. Ensure that you run the no domain command before starting an ISSU upgrade because the domain command has been removed from Cisco IOS XE Bengaluru 17.6.x.

  • Controller upgrade from Cisco IOS XE Bengaluru 17.3.x to any release using ISSU may fail if the snmp-server enable traps hsrp command is configured. Ensure that you remove the snmp-server enable traps hsrp command from the configuration before starting an ISSU upgrade because the snmp-server enable traps hsrp command has been removed from Cisco IOS XE Bengaluru 17.4.x.

  • Rolling AP upgrade, which is a part of the ISSU feature, is not supported for mesh APs.

The following Wave 1 APs are not supported from 17.4 to 17.9.2, 17.10.x and 17.11.x:

  • Cisco Aironet 1570 Series Access Point

  • Cisco Aironet 1700 Series Access Point

  • Cisco Aironet 2700 Series Access Point

  • Cisco Aironet 3700 Series Access Point


Note

  • Support for the above APs was reintroduced from Cisco IOS XE Cupertino 17.9.3.

  • Support for these APs does not extend beyond the normal product lifecycle support. Refer to the individual End-of-Support bulletins on Cisco.com.

  • Feature support is on parity with the 17.3.x release. Features introduced in 17.4.1 or later are not supported on these APs in the 17.9.3 release.

  • You can migrate directly to 17.9.3 from 17.3.x, where x=4c or later.

  • If APs fail to detect the backup image after running the archive download-sw command, perform the following steps:

    1. Upload the image using the no-reload option of the archive download-sw command: 

      Device# archive download-sw /no-reload tftp://<tftp_server_ip>/<image_name>

    2. Restart the CAPWAP process using capwap ap restart command. This allows the AP to use the correct backup image after the restart (reload is not required.) 

      Device# capwap ap restart

      Caution

      The AP will lose connection to the controller during the join process. When the AP joins the new controller, it will see a new image in the backup partition. So, the AP will not download a new image from the controller.

  • You might observe a high Confd CPU when full synchronization occurs between NETCONF datastore and Cisco IOS configuration. This behavior is normal and is triggered by the line vty command.

  • From Cisco IOS XE Cupertino 17.7.1 onwards, for Cisco Catalyst 9800-CL Wireless Controller, ensure that you complete Resource Utilization Measurement (RUM) reporting and ensure that the ACK is made available on the product instance at least once. This is to ensure that correct and up-to-date usage information is reflected in the Cisco Smart Software Manager (CSSM).

  • From Cisco IOS XE Amsterdam 17.3.1 onwards, the Cisco Catalyst 9800-CL Wireless Controller requires 16 GB of disk space for new deployments.

    If you are upgrading to Cisco IOS XE Amsterdam 17.3.x from a previous release, resizing of disk space is not supported. If the current disk space is lesser than 16 GB, you need to redeploy the VM to meet the new disk space requirements.

  • Fragmentation lower than 1500 is not supported for the RADIUS packets generated by wireless clients in the Gi0 (OOB) interface.

  • Cisco IOS XE allows you to encrypt all the passwords used on the device. This includes user passwords and SSID passwords (PSK). For more information, see the "Password Encryption" section of the Cisco Catalyst 9800 Series Configuration Best Practices document.

  • While upgrading to Cisco IOS XE 17.3.x and later releases, if the ip http active-session-modules none command is enabled, you will not be able to access the controller GUI using HTTPS. To access the GUI using HTTPS, run the following commands in the order specified below:

    1. ip http session-module-list pkilist OPENRESTY_PKI

    2. ip http active-session-modules pkilist

  • Cisco Aironet 1815T OfficeExtend Access Point will be in local mode when connected to the controller. However, when it functions as a standalone AP, it gets converted to FlexConnect mode.

  • The Cisco Catalyst 9800-L Wireless Controller may fail to respond to the BREAK signals received on its console port during boot time, preventing users from getting to the ROMMON. This problem is observed on the controllers manufactured until November 2019, with the default config-register setting of 0x2102. This problem can be avoided if you set config-register to 0x2002. This problem is fixed in the 16.12(3r) ROMMON for Cisco Catalyst 9800-L Wireless Controller. For information about how to upgrade the ROMMON, see the Upgrading ROMMON for Cisco Catalyst 9800-L Wireless Controllers section of the Upgrading Field Programmable Hardware Devices for Cisco Catalyst 9800 Series Wireless Controllers document.

  • By default, the controller uses a TFTP block size value of 512, which is the lowest possible value. This default setting is used to ensure interoperability with legacy TFTP servers. If required, you can change the block size value to 8192 to speed up the transfer process, using the ip tftp blocksize command in global configuration mode.

  • We recommend that you configure the password encryption aes and the key config-key password-encrypt key commands to encrypt your password.

  • If the following error message is displayed after a reboot or system crash, we recommend that you regenerate the trustpoint certificate:
     ERR_SSL_VERSION_OR_CIPHER_MISMATCH

    Use the following commands in the order specified below to generate a new self-signed trustpoint certificate:

    1. device# configure terminal

    2. device(config)# no crypto pki trustpoint trustpoint_name

    3. device(config)# no ip http server

    4. device(config)# no ip http secure-server

    5. device(config)# ip http server

    6. device(config)# ip http secure-server

    7. device(config)# ip http authentication local/aaa

  • Do not deploy OVA files directly to VMware ESXi 6.5. We recommend that you use an OVF tool to deploy the OVA files.

  • Ensure that you remove the controller from Cisco Prime Infrastructure before disabling or enabling Netconf-YANG. Otherwise, the system may reload unexpectedly.

  • Unidirectional Link Detection (UDLD) protocol is not supported.

  • SIP media session snooping is not supported on FlexConnect local switching deployments.

  • The Cisco Catalyst 9800 Series Wireless Controllers (C9800-CL, C9800-L, C9800-40, and C9800-80) support a maximum of 14,000 leases with internal DHCP scope.

  • Configuring the mobility MAC address using the wireless mobility mac-address command is mandatory for both HA and 802.11r.

  • If you have Cisco Catalyst 9120 (E/I/P) and Cisco Catalyst 9130 (E) APs in your network and you want to downgrade, use only Cisco IOS XE Gibraltar 16.12.1t. Do not downgrade to Cisco IOS XE Gibraltar 16.12.1s.

  • The following SNMP variables are not supported:

    • CISCO-LWAPP-WLAN-MIB: cLWlanMdnsMode

    • CISCO-LWAPP-AP-MIB.my: cLApDot11IfRptncPresent, cLApDot11IfDartPresent

  • If you are upgrading from Cisco IOS XE Gibraltar 16.11.x or an earlier release, ensure that you unconfigure the advipservices boot-level licenses on both the active and standby controllers using the no license boot level advipservices command before the upgrade. Note that the license boot level advipservices command is not available in Cisco IOS XE Gibraltar 16.12.1s and 16.12.2s.

  • The Cisco Catalyst 9800 Series Wireless Controller has a service port that is referred to as GigabitEthernet 0 port.

    The following protocols and features are supported through this port:

    • Cisco DNA Center

    • Cisco Smart Software Manager

    • Cisco Prime Infrastructure

    • Telnet

    • Controller GUI

    • DNS

    • File transfer

    • GNMI

    • HTTP

    • HTTPS

    • LDAP

    • Licensing for Smart Licensing feature to communicate with CSSM

    • Netconf

    • NetFlow

    • NTP

    • RADIUS (including CoA)

    • Restconf

    • SNMP

    • SSH

    • SYSLOG

    • TACACS+

  • During device upgrade using GUI, if a switchover occurs, the session expires and the upgrade process gets terminated. As a result, the GUI cannot display the upgrade state or status.

  • From Cisco IOS XE Bengaluru 17.4.1 onwards, the telemetry solution provides a name for the receiver address instead of the IP address for telemetry data. This is an additional option. During the controller downgrade and subsequent upgrade, there is likely to be an issue—the upgrade version uses the newly named receivers, and these are not recognized in the downgrade. The new configuration gets rejected and fails in the subsequent upgrade. Configuration loss can be avoided when the upgrade or downgrade is performed from Cisco DNA Centre.

  • From Cisco IOS XE Bengaluru 17.4.1 onwards, session timeout under the policy profile is supported.

  • Communication between Cisco Catalyst 9800 Series Wireless Controller and Cisco Prime Infrastructure uses different ports:

    • All the configurations and templates available in Cisco Prime Infrastructure are pushed through SNMP and CLI, using UDP port 161.

    • Operational data for controller is obtained over SNMP, using UDP port 162.

    • AP and client operational data leverage streaming telemetry:

      • Cisco Prime Infrastructure to controller: TCP port 830 is used by Cisco Prime Infrastructure to push the telemetry configuration to the controller (using NETCONF).

      • Controller to Cisco Prime Infrastructure: TCP port 20828 is used for Cisco IOS-XE 16.10.x and 16.11.x, and TCP port 20830 is used for Cisco IOS-XE 16.12.x, 17.1.x and later releases.

  • To migrate public IP address from 16.12.x to 17.x. ensure that you configure the service internal command. If you do not configure the service internal command, the IP address does not get carried forward.

  • When you encounter the SNMP error 
    SNMP_ERRORSTATUS_NOACCESS 6
    , it means that the specified SNMP variable is not accessible.

  • We recommend that you perform a controller reload whenever there is a change in the controller's clock time to reflect an earlier time.


Note

Before upgrading the Cisco Catalyst 9800-40 Series Wireless Controller image to Cisco IOS XE Cupertino 17.9.x using bundle mode, you must ensure that the ROMMON version is 17.7(3r) or later.

For other platforms, such as Cisco Catalyst 9800-80 Series Wireless Controllers, you should upgrade to 16.12(5r) and for Cisco Catalyst 9800-L Series Wireless Controllers, we recommend that you upgrade the ROMMON version to 16.12(3r) or later.

After the upgrade, you cannot downgrade to older ROMMON versions.

Note

The DTLS version (DTLSv1.0) is deprecated for Cisco Aironet 1800 based on latest security policies. Therefore, any new out-of-box deployments of Cisco Aironet 1800 APs will fail to join the controller and you will get the following error message: 

%APMGR_TRACE_MESSAGE-3-WLC_GEN_ERR: Chassis 1 R0/2: wncd: Error in AP Join, AP <AP-name>, 
mac:<MAC-address>Model AIR-AP1815W-D-K9, AP negotiated unexpected DTLS version v1.0

To onboard new Cisco Aironet 1800 APs and to establish a CAPWAP connection, explicitly set the DTLS version to 1.0 in the controller using the following configuration: 


config terminal
ap dtls-version dtls_1_0
end

Note that setting the DTLS version to 1.0 affects all the existing AP CAPWAP connections. We recommend that you apply the configuration only during a maintenance window. After the APs download the new image and join the controller, ensure that you remove the configuration.

Upgrade Path to Cisco IOS XE Cupertino 17.9.x

Table 14. Upgrade Path to Cisco IOS XE Cupertino 17.9.x

Current Software

Upgrade Path for Deployments with 9130 or 9124

Upgrade Path for Deployments Without 9130 or 9124

16.10.x

—

Upgrade first to 16.12.5 or 17.3.x and then to 17.9.x.

16.11.x

—

Upgrade first to 16.12.5 or 17.3.x and then to 17.9.x.

16.12.x

Upgrade first to 17.3.5 or later or 17.6.x or later, and then to 17.9.x.

Upgrade first to 17.3.5 or later or 17.6.x or later, and then to 17.9.x.

17.1.x

Upgrade first to 17.3.5 or later and then to 17.9.x.

Upgrade first to 17.3.5 or later and then to 17.9.x.

17.2.x

Upgrade first to 17.3.5 or later and then to 17.9.x.

Upgrade first to 17.3.5 or later and then to 17.9.x.

17.3.1 to 17.3.4

Upgrade first to 17.3.5 or later or 17.6.x or later, and then to 17.9.x.

Upgrade directly to 17.9.x.

17.3.4c or later

Upgrade directly to 17.9.x.

Upgrade directly to 17.9.x.

17.4.x

Upgrade first to 17.6.x and then to 17.9.x.

Upgrade directly to 17.9.x.

17.5.x

Upgrade first to 17.6.x and then to 17.9.x.

Upgrade directly to 17.9.x.

17.6.x

Upgrade directly to 17.9.x.

Upgrade directly to 17.9.x.

17.7.x

Upgrade directly to 17.9.x.

Upgrade directly to 17.9.x.

17.8.x

Upgrade directly to 17.9.x.

Upgrade directly to 17.9.x.

8.9.x or any version prior to 8.10.171.0

Upgrade first to 17.3.5 or later or 17.6.x or later, and then to 17.9.x.

Upgrade directly to 17.9.x.

Upgrading the Controller Software

This section describes the various aspects of upgrading the controller software.

For information on the upgrade process and the methods to upgrade the Cisco Catalyst 9800 Series Wireless Controller software, see the "Upgrading the Cisco Catalyst 9800 Wireless Controller Software" chapter of the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide.

Finding the Software Version

The package files for the Cisco IOS XE software are stored in the system board flash device (flash:).

Use the show version privileged EXEC command to see the software version that is running on your controller.


Note
Although the show version output always shows the software image running on the controller, the model name shown at the end of the output is the factory configuration, and does not change if you upgrade the software license.

Use the show install summary privileged EXEC command to see the information about the active package.

Use the dir filesystem: privileged EXEC command to see the directory names of other software images that you have stored in flash memory.

Software Images

  • Release: Cisco IOS XE Cupertino 17.9.x

  • Image Names (9800-80, 9800-40, and 9800-L):

    • C9800-80-universalk9_wlc.17.09.x.SPA.bin

    • C9800-40-universalk9_wlc.17.09.x.SPA.bin

    • C9800-L-universalk9_wlc.17.09.x.SPA.bin

  • Image Names (9800-CL):

    • Cloud: C9800-CL-universalk9.17.09.x.SPA.bin

    • Hyper-V/ESXi/KVM: C9800-CL-universalk9.17.09.x.iso, C9800-CL-universalk9.17.09.x.ova

    • KVM: C9800-CL-universalk9.17.09.x.qcow2

    • NFVIS: C9800-CL-universalk9.17.09.x.tar.gz

Software Installation Commands

Cisco IOS XE, Cupertino, 17.9.x

To install and activate a specified file, and to commit changes to be persistent across reloads, run the following command:

device# install add file filename [activate |commit]

To separately install, activate, commit, end, or remove the installation file, run the following command:

device# install ?

Note

 

We recommend that you use the GUI for installation.

add file tftp: filename

Copies the install file package from a remote location to a device, and performs a compatibility check for the platform and image versions.

activateauto-abort-timer]

Activates the file and reloads the device. The auto-abort-timer keyword automatically rolls back image activation.

commit

Makes changes that are persistent over reloads.

rollback to committed

Rolls back the update to the last committed version.

abort

Cancels file activation, and rolls back to the version that was running before the current installation procedure started.

remove

Deletes all unused and inactive software installation files.

Licensing

The Smart Licensing Using Policy feature is automatically enabled on the controller. This is also the case when you upgrade to this release. By default, your Smart Account and Virtual Account in Cisco Smart Software Manager (CSSM) are enabled for Smart Licensing Using Policy. For more information, see the "Smart Licensing Using Policy" chapter in the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide.

For a more detailed overview on Cisco Licensing, see cisco.com/go/licensingguide.

Interoperability with Clients

This section describes the interoperability of the controller software with client devices.

The following table lists the configurations used for testing client devices.

Table 15. Test Configuration for Interoperability

Hardware or Software Parameter

Hardware or Software Type

Release

Cisco IOS XE, Cupertino, 17.9.x

Cisco Wireless Controller

See Supported Hardware.

Access Points

See Supported APs.

Radio

  • 802.11ax

  • 802.11ac

  • 802.11a

  • 802.11g

  • 802.11n

  • 802.11ax in 6GHz (Wi-Fi 6E)

Security

Open, PSK (WPA2-AES), 802.1X (WPA2-AES) (EAP-FAST, EAP-TLS)

WPA3 AKM

802.11ax

RADIUS

See Compatibility Matrix

Types of tests

Connectivity, traffic (ICMP), and roaming between two APs

The following table lists the client types on which the tests were conducted. Client types included laptops, hand-held devices, phones, and printers.

Table 16. Client Types

Client Type and Name

Driver or Software Version

Laptops
Acer Aspire E 15 E5-573-3870 (Qualcomm Atheros QCA9377) Windows 10 Pro (12.0.0.832)
Apple Macbook Air 11 inch OS Sierra 10.12.6
Apple Macbook Air 13 inch OS High Sierra 10.13.4
Macbook Pro Retina OS Catalina
Macbook Pro Retina 13 inch early 2015 OS Mojave 10.14.3
Macbook Pro OS X OS X 10.8.5
Macbook Air OS Sierra v10.12.2
Macbook Air 11 inch OS X Yosemite 10.10.5
MacBook M1 Chip OS Catalina

Dell Inspiron 2020 Chromebook

Chrome OS 75.0.3770.129

Google Pixelbook Go

Chrome OS 97.0.4692.27

HP chromebook 11a

Chrome OS 76.0.3809.136

Samsung Chromebook 4+

Chrome OS 77.0.3865.105
Dell Latitude (Intel AX210) Windows 11 (22.110.x.x)
Dell Latitude 3480  (Qualcomm DELL wireless 1820) Win 10 Pro (12.0.0.242)
Dell Inspiron 15-7569 (Intel Dual Band Wireless-AC 3165) Windows 10 Home (21.40.0)
Dell Latitude E5540 (Intel Dual Band Wireless AC7260) Windows 7 Professional (21.10.1)
Dell Latitude E5430 (Intel Centrino Advanced-N 6205) Windows 7 Professional (15.18.0.1)
Dell Latitude E6840 (Broadcom Dell Wireless 1540 802.11 a/g/n) Windows 7 Professional (6.30.223.215)
Dell XPS 12 v9250 (Intel Dual Band Wireless AC 8260 ) Windows 10 Home (21.40.0)
Dell Latitude 5491 (Intel AX200) Windows 10 Pro (21.20.1.1)
Dell XPS Latitude12 9250 (Intel Dual Band Wireless AC 8260) Windows 10 Home
Dell Inspiron 13-5368 Signature Edition Windows 10 Home (18.40.0.12)
FUJITSU Lifebook E556 Intel 8260 (Intel Dual Band Wireless-AC 8260 (802.11n)) Windows 8 (19.50.1.6)

Lenovo Yoga C630 Snapdragon 850 (Qualcomm AC 2x2 Svc)

 Windows 10 Home
Lenovo Thinkpad Yoga 460 (Intel Dual Band Wireless-AC 9260) Windows 10 Pro (21.40.0)

Note

 
For clients using Intel wireless cards, we recommend that you to update to the latest Intel wireless drivers if the advertised SSIDs are not visible.

Tablets
Apple iPad 2021 iOS 15.0
Apple iPad 7the Gen 2019 iOS 14.0
Apple iPad MD328LL/A iOS 9.3.5
Apple iPad 2 MC979LL/A iOS 11.4.1
Apple iPad Air MD785LL/A iOS 11.4.1
Apple iPad Air2 MGLW2LL/A iOS 10.2.1
Apple iPad Mini 4 9.0.1 MK872LL/A iOS 11.4.1
Apple iPad Mini 2 ME279LL/A iOS 11.4.1
Apple iPad Mini 4 9.0.1 MK872LL/A iOS 11.4.1
Microsoft Surface Pro 3 13 inch (Intel AX201) Windows 10 (21.40.1.3)
Microsoft Surface Pro 3 15 inch (Qualcomm Atheros QCA61x4A) Windows 10
Microsoft Surface Pro 7 (Intel AX201) Windows 10
Microsoft Surface Pro 6 (Marvell Wi-Fi chipset 11ac) Windows 10
Microsoft Surface Pro X (WCN3998 Wi-Fi Chip) Windows

Mobile Phones
Apple iPhone 5 iOS 12.4.1
Apple iPhone 6s iOS 13.5
Apple iPhone 7 MN8J2LL/A iOS 11.2.5
Apple iPhone 8 iOS 13.5
Apple iPhone 8 Plus iOS 14.1
Apple iPhone 8 Plus MQ8D2LL/A iOS 12.4.1
Apple iPhone X MQA52LL/A iOS 13.1
Apple iPhone 11 iOS 15.1
Apple iPhone 12 iOS 15.1
Apple iPhone 12 Pro iOS 15.1
Apple iPhone 13 iOS 15.1
Apple iPhone 13 Mini iOS 15.1
Apple iPhone 13 Pro iOS 15.1
Apple iPhone SE MLY12LL/A iOS 11.3
Apple iPhone SE iOS 15.1
ASCOM i63 Build v 3.0.0
ASCOM Myco 3 Android 9

Cisco IP Phone 8821

11.0.6 SR1
Drager Delta VG9.0.2
Drager M300.3 VG2.4
Drager M300.4 VG2.4
Drager M540 DG6.0.2 (1.2.6)

Google Pixel 3a

Android 11

Google Pixel 4

Android 11

Google Pixel 5

Android 11

Google Pixel 6

Android 11
Huawei Mate 20 pro Android 9.0
Huawei P20 Pro

Android 10
Huawei P40

Android 10
LG v40 ThinQ Android 9.0

One Plus 8

Android 11

Oppo Find X2

Android 10

Redmi K20 Pro

Android 10
Samsung Galaxy S9+ - G965U1

Android 10.0

Samsung Galaxy S10 Plus

Android 11.0

Samsung S10 (SM-G973U1)

Android 11.0

Samsung S10e (SM-G970U1)

Android 11.0

Samsung S20 Ultra

Android 10.0

Samsung S21 Ultra 5G

 Android 11.0

Samsung Fold 2

 Android 10.0

Samsung Note20

Android 10.0

Samsung G Note 10 Plus

Android 11.0

Samsung Galaxy A01

Android 11.0

Samsung Galaxy A21

Android 10.0

Sony Experia 1 ii

Android 11
Sony Experia

Android 11

Xiaomi Mi 9T

Android 9

Xiaomi Mi 10

Android 11
Spectralink 84 Series 7.5.0.x257
Spectralink 87 Series Android 5.1.1
Spectralink Versity Phones 92/95/96 Series Android 10.0
Vocera Badges B3000n 4.3.3.18
Vocera Smart Badges V5000 5.0.6.35
Zebra MC40 Android  4.4.4
Zebra MC40N0 Android 4.1.1
Zebra MC92N0 Android  4.4.4
Zebra MC9090 Windows Mobile 6.1
Zebra MC55A Windows 6.5
Zebra MC75A OEM ver 02.37.0001
Zebra TC51 Android 6.0.1
Zebra TC52 Android 10.0
Zebra TC55 Android 8.1.0
Zebra TC57 Android 10.0
Zebra TC70 Android 6.1
Zebra TC75 Android 10.0
Zebra TC8000 Android  4.4.3
Printers
Zebra QLn320 Mobile Printer LINK OS 6.4
Zebra ZT230 IndustrialPrinter LINK OS 6.4
Zebra ZQ310 Mobile Printer LINK OS 6.4
Zebra ZD410 Industrial Printer LINK OS 6.4
Zebra ZT410 Desktop Printer LINK OS 6.4
Zebra ZQ610 Industrial Printer LINK OS 6.4
Zebra ZQ620 Mobile Printer LINK OS 6.4

Wireless Module

Intel 11ax 200

 Driver v22.20.0

Intel AC 9260

 Driver v21.40.0

Intel Dual Band Wireless AC 8260

Driver v19.50.1.6

Intel AX 210

Driver v22.110.x.x (or above)

Samsung S21 Ultra

Driver v20.80.80

QCA WCN6855

Driver v1.0.0.901

Caveats

Caveats describe unexpected behavior in Cisco IOS releases in a product. Caveats that are listed as Open in a prior release are carried forward to the next release as either Open or Resolved.


Note

All incremental releases contain fixes from the current release.

Cisco Bug Search Tool

The Cisco Bug Search Tool (BST) allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The BST is designed to improve the effectiveness in network risk management and device troubleshooting. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.

To view the details of a caveat, click the corresponding identifier.

Open Caveats for Cisco IOS XE Cupertino 17.9.4

From this release, the list of caveats is displayed using BST tool. When you click the BST link, it opens a separate window and lists the bugs sorted by severity. You can filter it further using the options in the tool.

Click on the following link to view the Open Caveats: BST Link

Open Caveats for Cisco IOS XE Cupertino 17.9.3

Identifier

Headline

CSCwa67566

Cisco Catalyst 9800 Series Controller/AireOS parity: Rejects clients with wrong PMKID when changing AKM from FT to dot1x to FT again.

CSCwc06025

Mesh APs cannot associate to Root AP after disabling 'Backhaul Client Access' on IW9167EH Root AP.

CSCwc76174

Client download to DP failed and floods the sytandby console with Traceback @cpp_wlclient_create.

CSCwd31523

Flex WLAN provisioning is failing on C9800-CL hosted on Azure.

CSCwd46815

EAP-TLS is failing for the wired clients behind MAP for Cisco 2800, 3800, 4800, 1562, 6300 series APs.

CSCwd56391

Controller is not providing RSSI location data for some of the RFID tags in database.

CSCwd79502

Controller is tracking stale entry due to anchored client getting IPv4 and IPv6 in different VLANs.

CSCwd86288

Load average warning is displayed even when Cisco Catalyst 9800-80 Series Controller is healthy.

CSCwd90742

Cisco Catalyst 9120AX AP kernel crash - PC is at rhb_del_interface+0xc.

CSCwd91054

COS-APs are not encrypting EAP_ID_REQ after M1-M4 and not updating PMKID for dot1x OKC.

CSCwd96484

Controller reloads unexpectedly after generating "wncd" core files.

CSCwd98332

Controller reloads after failing to match the interface ID in the anchor message.

CSCwe04602

Cisco Catalyst 9120 AP fails to forward traffic to wireless client for about 60 seconds.

CSCwe07802

Cisco APs such as 2800, 3800, 4800, and 1562 are dropping upstream EAP packets.

CSCwe11315

Cisco Catalyst 9164 and 9166 APs running Cisco IOS-XE 17.9.2 is facing DFS detections in all channels.

CSCwe11747

Cisco Catalyst AX Series APs are decoding EAP request ID incorrectly.

CSCwe14729

Controller reloads due to memory corruption when processing DHCP Reply Option82.

CSCwe16892

Traceback and reload occurs after detecting a bad magic number in chunk header.

CSCwe18012

Standby controller crashes while saving tbl QoS table.

CSCwe22861

AID leak is observed in Flex COS APs.

CSCwe25446

Unexpected reboot due WNCD.

CSCwe25610

Client delete initiated. Reason: CO_CLIENT_DELETE_REASON_REMOTE_MOBILITY_DELETE - Mobility Local.

CSCwe30473

Radio firmware crash is observed due to a frozen rc queue.

CSCwe31030

Cisco Catalyst 9105AXW AP is crashing.

CSCwe31270

Clients stop passing traffic when there is a missing bandwidth limit AAA attribute on the controller.

CSCwe32005

Cisco Catalyst 9130 AP: Packet loss is observed on Digital Signage device.

CSCwe38431

Controller is re-marking SIP packets from CS3 to CS0 in upstream/downstream when voice cac is configured.

CSCwe39039

Traceback is observed after provisioning controller from Cisco DNA Center.

CSCwe42211

EWC time offset is not updated on GUI.

CSCwe42302

IRCM Mobility client is deleted silently after a profile name mismatch.

CSCwe43294

Cisco Catalyst 9105AXW AP and Cisco Aironet 1815W Flex RLAN AP does not apply VLAN in the ethernet port after AAA vlan override.

CSCwe44216

AP crash is observed due to kernel panic (PC is at vfp_reload_hw+0x30/0x44).

CSCwe44991

Cisco Catalyst 9105AX AP: Kernel panic crash is observed.

CSCwe45300

Cisco Catalyst 9120 AP: Sending Msg:2 in mode:2 to hostapd failed.

CSCwe45894

AP are not forwarding IGMPv3 query to wireless clients.

CSCwe45970

APs are stuck in UBOOT.

CSCwe49267

Controller is not sending GTK M5 packet to 8821 after FT roaming between wncds.

CSCwe49356

Cisco Catalyst 9136 AP Kernel Panic: Unexpected reload csd_lock_wait+0x10/0x18.

CSCwe50033

Cisco Catalyst 9120AX AP: Clients are continuously disconnecting if more than 10 clients are using MS TEAMS.

CSCwe61084

Pubd crash is seen while performing ISSU upgrade from 17.3.7 to 17.9.3.

Open Caveats for Cisco IOS XE Cupertino 17.9.2

Caveat ID

Description

CSCwc24994

Cisco Aironet 3800 Access Point ends abnormally due to kernel panic.

CSCwc32182

Cisco Aironet 1852 Access Point experiences radio firmware crash.

CSCwc49992

Timeout during Direct Memory Access (DMA) transaction causes kernel panic in Access Point.

CSCwc75732

Cisco Aironet 4800 Access Point experiences firmware radio crash in Cisco IOS-XE 17.3.5b release.

CSCwd05213

Kernel panic crash observed when gRPC server process is executed.

CSCwd05689

Cisco Catalyst 9124 Access Point AXI RSSI is 7 dBm to 8 dBm weaker at a distance compared to other Access Point models.

CSCwd08068

Cisco Aironet 1815W Access Point crashes due to OOM when wcpd process hogs the memory.

CSCwd10570

Cisco Catalyst 9130 Access Point displays different beacon data-rates for different Basic Service Set Identifiers (BSSIDs).

CSCwd22017

Apple iOS devices are deleted due to IP Learn timeout.

CSCwd26693

The N+1 High Availability setup for FlexConnect access points is not working.

CSCwd30828

Cisco Catalyst 9120 Access Point crashes and reloads due to kernel panic.

CSCwd33981

Kernel panic crash is observed when PC is at "cpuidle_not_available".

CSCwd35577

Double bit ECC error causes the standby controller to reload.

CSCwc64201

Cisco Catalyst 9105 Access Point experiences communication gaps when working as a workgroup bridge (WGB).

CSCwc87688

Cisco Catalyst 9120 Access Point randomly displays high noise level in 5-GHz radio.

CSCwd03803

Cisco Aironet 1815I Access Point reboots when PC is at edma_poll or LR is at dma_cache_maint_page.

CSCwd20476

Wireless peers are unable to reach each other when passive client is enabled.

CSCwd21996

Cisco Catalyst 9120 Access Point experiences CleanAir sensor crash.

CSCwd22430

Access Points fail to view the backup image after using the "archive download-sw" command.

CSCwd25931

Wireless client does not receive IPv6 RA from wired FlexConnect local Dynamic Host Configuration Protocol (DHCP).

CSCwd28109

Cisco Catalyst 9130 Access Point experiences high latency or packet drops during TFTP.

CSCwd32900

Cisco Catalyst 9120 Access Point drops M4 during four-way handshake.

CSCwd34908

Dynamic Channel Allocation (DCA) debug in the controller does not display Slot 2 when nearby Access Point uses channel 36.

CSCwd36187

Controller does not regularly send license sync report to Cisco Smart Software Manager (CSSM).

CSCwc97199

Re-association request processing is delayed between the driver and wcp.

Open Caveats for Cisco IOS XE Cupertino 17.9.1

Caveat ID

Description

CSCwb70620

WPA TKIP client is unable to join due to mic error from client.

CSCwc00005

Cisco Catalyst 9136 AP: Auto-RF on the controller is reporting lower interference when rogue is using 40/80 MHz bandwidth.

CSCwc05366

Wireless AAA dynamic VLAN assignment: Clients cannot reach each other.

CSCwc15944

Cisco Catalyst 9800-L: Multicast traffic is not forwarded from wireless system to wireless clients.

CSCwc24994

Cisco AireOS 3800 series AP is crashing due to kernel panic.

CSCwc25974

Cisco Catalyst 9136 AP: Traffic running on AP itself is seen as interference on adjacent channels.

CSCwc28757

Cisco AireOS 3800 series AP: Radio crashes on Slot 0.

CSCwc30314

Cisco AireOS 4800 series AP is sending upstream DHCP packets in CAPWAP when in FlexConnect local switching local DHCP.

CSCwc31406

Stale entries in device-tracking database is causing false IP theft for IPv6 addresses.

CSCwc32182

Cisco AireOS 1852 AP: Radio firmware crash is observed.

CSCwc32360

Controller is deleting clients due to IP theft detection.

CSCwc39384

Cisco Wireless 9164 AP crashes @ PC is at cnss_wait_for_fw_ready+0xd4/0x118.

CSCwc41616

Cisco Catalyst 9105 AP: Crash is observed due to kernel panic.

CSCwc46702

Cisco Catalyst 9800-L: Crash is observed with reason critical process wncd fault on rp_0_0 (rc=134).

CSCwc60273

The AAA dashboard of Cisco DNA Centre does not display any AAA transaction data after the software upgrade.

Resolved Caveats for Cisco IOS XE Cupertino 17.9.4

From this release, the list of caveats is displayed using BST tool. When you click the BST link, it opens a separate window and lists the bugs sorted by severity. You can filter it further using the options in the tool.

Click on the following link to view the Resolved Caveats: BST Link

Resolved Caveats for Cisco IOS XE Cupertino 17.9.3

Identifier

Headline

CSCvx32806

COS-APs are stuck in bootloop due to image checksum verification failure.

CSCwb72924

FlexConnect client is intermittently unable to reconnect to an AP.

CSCwc10696

Regular ASR support field is disabled for supporting clients.

CSCwc24994

Cisco Aironet 3800 series AP crashes due to kernel panic (PC is at vfp_reload_hw+0x30/0x44).

CSCwc32182

Cisco Catalyst AP 1852: Radio firmware crash is observed.

CSCwc54410

Controller HA dual active scenario is observed when standby controller is reconnecting to HA pair.

CSCwc55632

Cisco Catalyst 9124 MAP fails to connect to Cisco Aironet 1562 RAP after first reload of MAP.

CSCwc75732

Cisco Aironet 4800 AP: Firmware radio crash is observed.

CSCwc79718

Cisco Catalyst 9166I AP: Multiple cores are reported after image upgrade.

CSCwc81656

Flash file system corruption is observed on AIR-CAP2702E-K-K9.

CSCwc87688

Cisco Catalyst 9120 AP shows very high noise level on 5-GHz radio.

CSCwc89183

Controller crash is observed on libewlc_client_dpath_svc.so.

CSCwc97298

Cisco Catalyst 9166 AP: Radio-2 firmware crash is observed - Thread ID: 0x00000014 Thread name: WLAN_SCHED0;PC: 0x015dc73c.

CSCwd02898

Cisco Catalyst 9300 Series Switch is not flushing remote MAC address after roaming to a local AP.

CSCwd02960

Cisco Catalyst 9166 AP: XoR radio (slot-2); switching between 5-Ghz and 6-Ghz causes kernel panic.

CSCwd03803

Cisco Aironet 1815I AP reboot: PC is at edma_poll / LR is at dma_cache_maint_page.

CSCwd04025

PI 3.10.1: Associated APs with controller is showing interface "Half duplex".

CSCwd04571

Memory leak is observed in wncd process when under load.

CSCwd06001

Linux iosd crash on standby controller during reload of the Cisco Catalyst 9800-L Wireless Controller.

CSCwd06018

802.11r re-auth failed due to invalid Pairwise Master Key ID (PMKID) while doing inter-WNCD roaming.

CSCwd06122

AP Join issues reported due to stale client entries.

CSCwd08678

Timer is not running state client not deleted by controller.

CSCwd10570

Cisco Catalyst 9130 AP: Beacon with incorrect datarates - different rates for same slot on different BSSIDs.

CSCwd12120

Inject path crash is observed on controller switch on IPv6_qos.

CSCwd12754

CAPWAP wireless traffic is getting the same Security Group Tag (SGT) as the corresponding incoming wired traffic.

CSCwd19631

Cisco Catalyst 9120 AP cannot operate in mGig when EEE is enabled on switchport.

CSCwd21996

Cisco Catalyst 9120 AP: CleanAir sensor is crashing.

CSCwd23681

Controller fails to update AP config with error "% Error: no ap_name exists".

CSCwd26693

N+1 HA for FlexConnect is not working.

CSCwd28226

Cisco Catalyst 9136 AP in sniffer mode suffers capwapd crash followed by join/disjoin loop.

CSCwd30828

Cisco Catalyst 9120 AP: Kernel panic crash is observed.

CSCwd32107

Cisco Aironet 2700 AP: Ignore CAPWAP_PAYLOAD: AP_LAN_CONFIG payload having invalid RLAN port enable value.

CSCwd34890

Clients are getting deauth immediately after getting IP address in LWA+LocalSW+CentralAuth.

CSCwd34908

Controller is not following the Dynamic Channel Assignment (DCA) sensitivity threshold.

CSCwd35393

Wireless load balancing affinity incorrectly shows AP site tag as default-site.

CSCwd35577

Redundancy fails during double bit ECC error

CSCwd39605

Cisco Catalyst 9117 AP reloads unexpectedly due to kernel panic at console_unlock+0x320/0x3ac.

CSCwd40731

AP reloads due to kernel panic - not syncing: softlockup: hung tasks.

CSCwd41108

Cisco Catalyst 9130AXE AP with Dart connectors are stuck at channel 36.

CSCwd46091

Cisco Catalyst 9105AXI AP is requesting 30 watts instead of 15.4 watts.

CSCwd46721

IP Theft occurs due to stale client entries in the ODM database.

CSCwd46770

License: Remove reporting interval (fixed 8 hours) and change Sync report to a user action.

CSCwd47741

Controller is failing to update dynamic channel assignment (DCA) channels in radio resource management (RRM) are stuck.

CSCwd49166

Cisco Aironet 3800 AP is consistently reporting high QoS Basic Set Service (QBSS) load.

CSCwd49861

AIRESPACE-WIRELESS-MIB: bsnAPIfType OID documentation incomplete.

CSCwd52385

AP is not initiating gRPC connection to Cisco DNA Center correctly after token expiry.

CSCwd52745

Cisco Aironet 3802 AP: Kernel crash is observed.

CSCwd52938

Wired clients behind workgroup bridge (WGB) are not getting IP address in anchor WLAN.

CSCwd55757

Wave 2 APs: Systemd critical process crash - dnsmasq-host.service failed.

CSCwd56621

Controller GUI logging buffer size display is incorrect.

CSCwd59921

Cisco Catalyst 9130 AP is dropping EAP-TLS frames.

CSCwd60376

Cisco Catalyst 9120 AP: Kernel panic is observed with PC is at pci_generic_config_read+0x34/0xa8.

CSCwd61428

Cisco Catalyst 9136I AP: GRPC crash is observed.

CSCwd63516

Cisco Catalyst 9120 AP fails EAP-TLS port authentication after Plug and Play (PnP) configuration is pushed.

CSCwd63665

Cisco Catalyst 9800-80 Series Wireless Controller shows high CPU utilization in wncd with 200 APS due to WSA.

CSCwd63861

SIGSEGV crash is observed when incrementing roaming statistics.

CSCwd69780

Controller crashes due to netflow watchdog and observed CPU HOG in wncmgrd due to scale netflow.

CSCwd72295

Cisco Catalyst 9136 AP: AP radios are going down if country code is set to RO.

CSCwd74123

Cisco Catalyst 9105 OEAP: Personal SSID is not advertising HE IE in beacon.

CSCwd74571

Wcpd crashes after reusing freed packets.

CSCwd76693

Profile mismatch counter is not increasing.

CSCwd77188

Cisco Aironet 3802 AP: Broadcasts different power values in beacon country IE.

CSCwd77823

Cisco Catalyst 9130 AP: Radio firmware crash is observed.

CSCwd79178

Cisco Aironet 1840 OEAP: Crash is observed due to radio failure.

CSCwd79645

Wireless client are unable to communicate after session timeout when AP dropped once during the session.

CSCwd80290

IOS AP image validation certificate failed/expired, causing AP join issues.

CSCwd81523

Cisco Catalyst 9130 AP is not sending EAP_ID_RESP next assoc-req after PMF client tx deauth in middle of EAP handshake.

CSCwd83840

Cisco Aironet 1830 AP: Wireless clients are unable to connect - "writing to fd 27 failed!".

CSCwd83841

EWC: AP is not sending packets from wired interface to subnet 192.168.129.0/24.

CSCwd90472

Adding static IP MAC binding to device tracking fails.

CSCwd90907

Cisco Catalyst 9164 AP: Crash is observed on Radio 1.

CSCwd90909

Cisco Catalyst 9115 AP: Crash is observed on Radio 1.

CSCwd93773

Controller should not enable 2nd 5Ghz radio for 9124E with PoE+ (30W).

CSCwd96376

Unable to login to controller GUI or CLI with the user created by Day 0 Wizard.

CSCwd99656

The snmp-server host command is not filtering characters properly (Fails when name is e.g.TEST\).

CSCwe00248

Poor reassociation behavior is observed between Spectralink 84xx series phones and Cisco Catalyst 9136 APs.

CSCwe06752

Controller GUI cannot configure HA/SSO if wireless mgmt interface is not configured.

CSCwe08688

EWC: Mesh ap factory reset mode cannot be set to EWC after converting it to CAPWAP and factory-reset.

CSCwe11547

Crash is seen on "Critical process rrm fault on rp_0_0 (rc=139)".

CSCwe12057

QoS Page is not loading when access control list (ACL) has double quote special character in the name.

CSCwe18524

AP filter error in the controller GUI when add operation follows edit/view.

CSCwe26846

Console Flood- check_dot1x_feature_status: config change or tams_init_not_done.

CSCwe28717

Certificate failures observed when joining APs to Cisco Catalyst 9800 controller using CMCA III.

CSCwe32728

Cisco Catalyst 9162 AP crashes due to radio failure.

CSCwe38326

Cisco Catalyst 9166 APs are stuck in CAPWAP state.

Resolved Caveats for Cisco IOS XE Cupertino 17.9.2

Caveat ID

Description

CSCwa42620

Cisco Catalyst 9130 Access Point drops packets on-air for Phoenix WinNonlin application.

CSCwa86610

Cisco Aironet 2802 and 3802 Access Points experience kernel panic crash when 8.10.151.0 image is executed.

CSCwc09461

Cisco Catalyst 9120 Access Points send Authentication response frames to clients after long delays.

CSCwc62021

Default credential does not work after factory reset in Cisco Aironet 1815 and 1832 Access Points.

CSCwc75102

Conversion of Mobility Express Access Points from ME to CAPWAP mode using DHCP option 43 does not work.

CSCwc78435

Cisco Catalyst 9130 Access Point sends incorrect channel list in out-of-band DFS event causing client connectivity issues.

CSCwd00751

Cisco Aironet 2802 Access Point reloads unexpectedly on 8.10.171 release version.

CSCwd08259

Cisco Catalyst 9120, 9115, and 9105 Access Points experience radio firmware crash with Cisco IOS-XE 17.3 or later releases.

CSCvv96364

Cisco Aironet 3800 Access Points experience WCPd crash when running 17.3.1 image.

CSCvx80422

An access point fails to forward packets when using 10.128.128.127 or 10.128.128.128 addresses.

CSCvz66623

EAP-TLS clients behind the Mesh Access Point (MAP) experience authentication failure.

CSCwb08291

Cisco Catalyst 9105AXW Access Point introduces latency when clients use RLAN ports.

CSCwc05350

Cisco Wave 2 Access Points: CAPWAP MTU flapping occurs due to asymmetric MTU between Access Point to controller and vice-versa.

CSCwc10621

CleanAir statistics are not visible in Cisco Catalyst 9130 Access Points when joined to EWC.

CSCwc35321

Cisco Wave 2 Access Points in Local mode sends Address Resolution Protocol (ARP) requests to wireless clients from 10.128.128.128 IP address.

CSCwc38912

Changing an Access Point site or policy tag to a Flex local switching set intermittently causes client connectivity failure to local web auth WLANs.

CSCwc51894

Cisco Catalyst 9117 Access Point reloads unexpectedly due to kernel panic with "dp_print_host_stats" logs.

CSCwc56774

Workgroup Bridge (WGB) with static IP loses IP address after multiple roams.

CSCwc71198

CAPWAP flapping is observed when VRRPv3 is present in the network.

CSCwc73462

Backslash "\" in the end of the RADIUS servers' shared secret is not allowed for FlexConnect groups configuration.

CSCwc81341

Cisco Catalyst 9130 Access Point experiences kernel panic crash in Local mode when full data packet capture is enabled.

CSCwc89719

Cisco Aironet 1832 Access Point crashes due to radio failure.

CSCwc96683

Controller running Cisco IOS-XE 17.3.5a with Cisco Aironet 3800 Access Point in Flex local switching does not forward IP fragmented packets received with DF.

CSCwd07572

Access Point stops transmitting UBPR in 6-GHz when it is active in 2.4-GHz or 5-GHz band.

CSCwc05366

Wireless clients cannot reach each other as ARP resolution fails when performing dynamic VLAN assignment using AAA with SSID.

CSCwc15533

Continuous wncmgrd CPUHOG traceback with scale Flexible NetFlow (FNF) mapping to policy profile results in 100% wncd utilization.

CSCwc15944

Multicast data is not sent to clients and few Access Points are unable to join the controller.

CSCwc22468

Client traffic fails when client roams between access points with a transition between dot11r and dot11i.

CSCwc26105

High Availability split brain is observed due to multiple secondary addresses in the interface.

CSCwc42784

Client fails to connect when protocol based Quality of Service (QoS) is configured.

CSCwc57227

Controller experiences an unexpected reset resulting in a system report containing a wncd core file.

CSCwc59518

Cisco Catalyst 9800-80 Wireless Controller crashes when using WLAN profile with 32 characters and disabled voice Channel Availability Check (CAC).

CSCwc68682

Cisco Catalyst 9800 Wireless Controller - Link down due to local fault.

CSCwb47040

Controller does not update Radio Frequency Identification (RFID) location properly.

CSCwb78191

The AAA VLAN override is not considered with iPSK authentication and anchor WLAN.

CSCwc17774

Few OIDs in CISCO-ENHANCED-MEMPOOL-MIB display "No instance after switchover" in Cisco IOS-XE 17.6.1.

CSCwc26819

Controller does not send LLC or XID spoofed frames after a mobility event.

CSCwc28408

Controller crashes intermittently due to wncd critical process failure.

CSCwc36125

Radio Resource Management (RRM) startup mode gets triggered on every reboot as the controller does not keep track of the last state.

CSCwc41358

Controller MAC filtering: WLAN profile column displays the WLAN name and description.

CSCwc41903

Syslog "LISP RELIABLE REGISTRATION" needs to be enhanced.

CSCwc57836

Restore configuration by HTTP mode does not work in EWC.

CSCwc62824

Controller does not send LLC or XID spoofed frames after a mobility event.

CSCwc69815

Cisco Catalyst 9300 switch interface generates RUM reports every 8 hours when AIR controller licenses are handled incorrectly.

CSCwc72047

Access Points operate in disabled RF profile channels in Cisco IOS-XE 17.6.2 release version.

CSCwc74020

Need to increase the 8 IP address limit in the controller datapath.

CSCwc76905

Switch Integrated Security Features (SISF) crash is observed when handling the DHCP messages.

CSCwd17349

Active chassis gets stuck during SSO failover in Cisco IOS-XE 17.9 release version.

Resolved Caveats for Cisco IOS XE Cupertino 17.9.1

Caveat ID

Description

CSCwb52755

Fast Transition capable Apple and Android clients are unable to authenticate with IPSK profile.

CSCwb09248

High latency and packet drops are observed when associated to Cisco Catalyst 9130 AP.

CSCwb76935

Cisco Aironet 1815T AP: OEAP kernel panic crash is observed.

CSCwb97557

Cisco Aironet 3800 AP: Slot0 BSSID beacon frames are received on slot1 radio.

CSCwc04197

Secondary controller crash is observed during redundancy switchover.

CSCwc04328

6 GHz RRM: Channel-aware TPC is always on for 6 GHz TPC.

CSCwc04673

Cisco Wireless 9166 AP crashed at ieee80211_mbssid_del_profile upon flapping WLAN.

CSCwc07014

AP sends empty FlexConnect client cache payload to controller after successful client FT-SAE roam.

CSCwc08770

Cisco Wave 2 AP: Able to do SSH to AP when AP SSH global config is disabled.

CSCwc15229

Cisco Aironet 1832 AP reloads due to radio failure - Beacons are stuck on radio.

CSCwc17898

Observed a crash while joining AP with name that already exists on controller.

CSCwc20929

APP hosting segmentation doesnt work on Cisco Catalyst 9100 AP connected to a controller running 17.6.3.

CSCwc21428

6 GHz radio: Frequent channel changes are observed due to high utilization.

CSCwc27716

Memory leak is observed while deleting and adding mDNS rules.

CSCwc29238

WGB ping gateway failed after wgb associate to ap in 2.4 GHz and trigger wgbwiredclient get ipv4.

CSCwc29760

Cisco Aironet 3800 AP: Crash is observed due to led_core on ap.

CSCwc31277

6 GHz: Beacon stuck + QBSS 100%; no recovery ap.

CSCwc40483

Transmission power is not getting applied to Slot 1 on AP.

CSCwc43716

Not able to login AP CLI with credentials in site survey mode.

CSCwc46228

Unable to add AP location name on web UI with a space.

CSCwc62021

Cisco Aironet 1815 and 1832 APs: Default credentials are not working after the factory reset.

CSCwa65584

Controller does not accept Cisco Catalyst C91xx Series Access Points as TrustSec capable platform.

Related Documentation

Information about Cisco IOS XE is available at:

https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html

Cisco Validated Design documents are available at:

https://www.cisco.com/go/designzone

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use the Cisco MIB Locator at:

http://www.cisco.com/go/mibs

Cisco Wireless Controller

For more information about the Cisco wireless controller, lightweight APs, and mesh APs, see these documents:

The installation guide for your controller is available at:

For all Cisco Wireless Controller software-related documentation, see:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9800-series-wireless-controllers/tsd-products-support-series-home.html

Cisco Catalyst 9800 Wireless Controller Data Sheets

Cisco Embedded Wireless Controller on Catalyst Access Points

For more information about the Cisco Embedded Wireless Controller on Catalyst Access Points, see:

https://www.cisco.com/c/en/us/support/wireless/embedded-wireless-controller-catalyst-access-points/tsd-products-support-series-home.html

Wireless Products Comparison

Cisco Prime Infrastructure

Cisco Prime Infrastructure Documentation

Cisco Connected Mobile Experiences

Cisco Connected Mobile Experiences Documentation

Cisco DNA Center

Cisco DNA Center Documentation

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