Release Notes for Cisco Catalyst 1000 Series Switches, Cisco IOS Release 15.2(7)Ex
Introduction
This release note describes the features, modifications, and caveats for the Cisco IOS Release 15.2(7)Ex software on the Cisco Catalyst 1000 Series Switches.
Supported Hardware
Cisco Catalyst 1000 Series Switches—Model Numbers
The following table lists the supported hardware models.
Switch Model |
Description |
---|---|
Cisco Catalyst C1000 8-Port and 16-Port Switch Models and Description | |
C1000-8T-2G-L |
8 10/100/1000 Ethernet ports; 2 1-Gigabit small form-factor pluggable (SFP) module uplink slots or 2 RJ-45 slots. |
C1000-8T-E-2G-L |
Externally powered; 8 10/100/1000 Ethernet ports; 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots. |
C1000-8P-2G-L |
8 10/100/1000 Power over Ethernet plus (PoE+) ports (PoE budget of 67W); 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots. |
C1000-8P-E-2G-L |
Externally powered; 8 10/100/1000 PoE+ ports (PoE budget of 67W); 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots. |
C1000-8FP-2G-L |
8 10/100/1000 PoE+ ports (PoE budget of 120W); 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots. |
C1000-8FP-E-2G-L |
Externally powered; 8 10/100/1000 PoE+ ports (PoE budget of 120W); 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots. |
C1000-16T-2G-L |
16 10/100/1000 Ethernet ports; 2 1-Gigabit small form-factor pluggable (SFP) module uplink slots. |
C1000-16T-E-2G-L |
Externally powered; 16 10/100/1000 Ethernet ports; 2 1-Gigabit SFP module uplink slots. |
C1000-16P-2G-L |
16 10/100/1000 PoE+ ports (PoE budget of 120W); 2 1-Gigabit SFP module uplink slots. |
C1000-16P-E-2G-L |
Externally powered; 16 10/100/1000 PoE+ ports (PoE budget of 120W); 2 1-Gigabit SFP module uplink slots. |
C1000-16FP-2G-L |
16 10/100/1000 PoE+ ports (PoE budget of 240W); 2 1-Gigabit SFP module uplink slots. |
Cisco Catalyst C1000 24-Port and 48-Port Switch Models and Description |
|
C1000-24T-4G-L |
24 10/100/1000 Ethernet ports; four 1-Gigabit Ethernet SFP module uplink slots |
C1000-24P-4G-L |
24 10/100/1000 PoE+ ports (PoE budget of 195W); four 1-Gigabit Ethernet SFP module uplink slots |
C1000-24FP-4G-L |
24 10/100/1000 PoE+ ports (PoE budget of 370W); four 1-Gigabit Ethernet SFP module uplink slots |
C1000-48T-4G-L |
48 10/100/1000 Ethernet ports; four 1-Gigabit Ethernet SFP module uplink slots |
C1000-48P-4G-L |
48 10/100/1000 PoE+ ports (PoE budget of 370W); four 1-Gigabit Ethernet SFP module uplink slots |
C1000-48FP-4G-L |
48 10/100/1000 PoE+ ports (PoE budget of 740W); four 1-Gigabit Ethernet SFP module uplink slots |
C1000-24T-4X-L |
24 10/100/1000 Ethernet ports; four 10-Gigabit Ethernet small form-factor pluggable plus (SFP+) module uplink slots |
C1000-24P-4X-L |
24 10/100/1000 Ethernet ports; limited PoE+ ports (PoE budget of 195W); four 10-Gigabit Ethernet SFP+ module uplink slots |
C1000-24FP-4X-L |
24 10/100/1000 PoE+ ports (PoE budget of 370W); four 10-Gigabit Ethernet SFP+ module uplink slots |
C1000-48T-4X-L |
48 10/100/1000 Ethernet ports; four 10-Gigabit Ethernet SFP+ module uplink slots |
C1000-48P-4X-L |
48 10/100/1000 PoE+ ports (PoE budget of 370W); four 10-Gigabit Ethernet SFP+ module uplink slots |
C1000-48FP-4X-L |
48 10/100/1000 PoE+ ports (PoE budget of 740W); four 10-Gigabit Ethernet SFP+ module uplink slots |
Cisco Catalyst C1000 24-Port and 48-Port FastEthernet Switch Models and Description |
|
C1000FE-24T-4G-L |
24 10/100 Fast Ethernet ports; 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots combo ports; 2 1-Gigabit Ethernet SFP module uplink slots. |
C1000FE-24P-4G-L |
24 10/100 Fast Ethernet ports (PoE budget of 195W); 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots combo ports; 2 1-Gigabit Ethernet SFP module uplink slots. |
C1000FE-48T-4G-L |
48 10/100 Fast Ethernet ports; 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots combo ports; 2 1-Gigabit Ethernet SFP module uplink slots. |
C1000FE-48P-4G-L |
48 10/100 Fast Ethernet ports (PoE budget of 370W); 2 1-Gigabit SFP module uplink slots or 2 RJ-45 slots combo ports; 2 1-Gigabit Ethernet SFP module uplink slots. |
Optics Modules
The Catalyst 1000 Switches support a wide range of optics. Because the list of supported optics is updated on a regular basis, consult the tables at this URL for the latest SFP+ and SFP module compatibility information: https://tmgmatrix.cisco.com
Features of the Switch
Ease of Operation
This section lists the ease-of-operation features supported by Cisco Catalyst 1000 Series Switches:
-
Cisco Catalyst Smart Operations is a comprehensive set of features that simplify LAN deployment, configuration, and troubleshooting. Catalyst Smart Operations is a set of features that includes Auto Smartports, Smart Configuration, and Smart Troubleshooting to enhance operational excellence:
-
Cisco Auto Smartports provide automatic configuration as devices connect to the switch port, allowing auto detection, and plug and play of the device onto the network.
-
Cisco Smart Troubleshooting is an extensive array of debug diagnostic commands and system health checks within the switch, including Generic Online Diagnostics (GOLD) and Onboard Failure Logging (OBFL).
-
Auto Configuration determines the level of network access provided to an endpoint based on the type of the endpoint device.
-
Interface templates provide a mechanism to configure multiple commands at the same time and associate it with a target (such as an interface). An interface template is a container of configurations or policies that can be applied to specific ports.
-
Network Security
The Cisco Catalyst 1000 Series Switches provide a range of security features to limit access to the network and mitigate threats.
-
In Cisco IOS Release 15.2(7)E3 and later releases, SSH is enabled by default to connect to networks, and Telnet is disabled by default.
-
Port security: secures the access to an access or trunk port based on MAC address. It limits the number of learned MAC addresses to deny MAC address flooding.
-
Dynamic Host Control Protocol (DHCP) snooping: filters untrusted DHCP messages between untrusted hosts and DHCP servers.
-
Dynamic ARP Inspection (DAI): prevents malicious attacks on the device by not relaying invalid Address Resolution Protocol (ARP) requests and responses to other ports in the same VLAN.
-
Flexible authentication: supports multiple authentication mechanisms including 802.1X, MAC Authentication Bypass, and web authentication.
-
Open mode: creates a user-friendly environment for 802.1X operations.
-
RADIUS Change of Authorization (CoA): enables asynchronous policy management.
-
Standard and extended access control lists (ACLs): define security policies on routed interfaces for control-plane and data-plane traffic. IPv6 ACLs can be applied to filter IPv6 traffic.
-
Port-based ACLs for Layer 2 interfaces: allow security policies to be applied on individual switch ports.
-
Secure Shell (SSH) Protocol and Simple Network Management Protocol Version 3 (SNMPv3): provide network security by encrypting administrator traffic during Telnet and SNMP sessions. SSH Protocol, Kerberos, and the cryptographic version of SNMPv3 require a special cryptographic software image because of U.S. export restrictions.
-
Bidirectional data support on the Switched Port Analyzer (SPAN) port: allows Cisco intrusion detection.
-
TACACS+ and RADIUS authentication: facilitates the centralized control of a device and restricts unauthorized users from altering the configuration.
-
MAC address notification: notifies administrators about users added to or removed from the network.
-
Multilevel security on console access: prevents unauthorized users from altering the device configuration.
-
Bridge protocol data unit (BPDU) Guard: shuts down Spanning Tree Port Fast-enabled interfaces when BPDUs are received to avoid accidental topology loops.
-
Internet Group Management Protocol (IGMP) filtering: provides multicast authentication by filtering out non-subscribers and limits the number of concurrent multicast streams available per port.
-
802.1x monitor mode: enables authentication across the wired infrastructure in an audit mode without affecting wired users or devices. It helps IT administrators to smoothly manage 802.1x transitions by allowing access and logging system messages when a device requires reconfiguration or is missing an 802.1x supplicant.
Deployment and Control Features
This section lists the deployment and control features:
-
Auto-negotiation on all ports automatically selects half- or full-duplex transmission mode to optimize bandwidth.
-
Dynamic Host Configuration Protocol (DHCP) auto-configuration of multiple switches through a boot server eases switch deployment.
-
Dynamic Trunking Protocol (DTP) facilitates dynamic trunk configuration across all switch ports.
-
Port Aggregation Protocol (PAgP) automates the creation of Cisco Fast EtherChannel groups and Gigabit groups.
-
Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling with devices that conform to IEEE 802.3ad.
-
Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling with devices that conform to IEEE 802.3ad.
-
Unidirectional Link Detection Protocol (UDLD) and Aggressive UDLD allow unidirectional links caused by incorrect wiring. Also, port faults can be detected and disabled on the interfaces.
-
Internet Group Management Protocol (IGMP) v1, v2, v3 Snooping for IPv4. MLD v1 and v2 Snooping provide fast client joins and leaves of multicast streams and limit bandwidth-intensive video traffic to only the requester.
-
Voice VLAN simplifies telephony installations by keeping voice traffic on a separate VLAN for easier administration and troubleshooting.
-
Layer 2 traceroute eases troubleshooting by identifying the physical path that a packet takes from source to destination.
-
Trivial File Transfer Protocol (TFTP) reduces the cost of administering software upgrades by downloading from a centralized location.
-
Network Timing Protocol (NTP) provides an accurate and consistent timestamp to all intranet switches.
-
Storm control for unicast, broadcast and multicast traffic to prevent disruption in the network due to packet flooding on the LAN.
-
IEEE 802.1s/w Rapid Spanning Tree Protocol (RSTP) and Multiple Spanning Tree Protocol (MSTP) provide rapid spanning-tree convergence independent of spanning-tree timers and also offers the benefit of Layer 2 load balancing and distributed processing.
-
Switch-port auto-recovery (error-disable) automatically attempts to reactivate a link that is disabled because of a network error
Quality of Service
This section lists the quality of service (QoS) features:
-
Multilayer Switching (MLS) QoS provides the ability to configure granular policies and classes on every interface. These policies include policers, markers, and classifiers.
-
Supports up to 4 egress queues per port, and finer flow segregation using 2 threshold markers for non-strict-priority queues.
-
Strict priority queuing to ensure that the highest-priority packets are serviced ahead of all other traffic.
-
Shared Round Robin (SRR) scheduling to ensure differential prioritization of packet flows.
Software Features in Cisco IOS Release 15.2(7)E1
New Software Features
Feature Name |
Description |
---|---|
IPv6 RA Guard |
Allows the network administrator to block or reject unwanted or rogue router advertisement (RA) guard messages that arrive at the network device platform. |
Dual Active Detection Using Enhanced PAgP |
If the device is connected to a Virtual Switch System (VSS) using a PAgP EtherChannel, it automatically serves as a VSS client, using enhanced PAgP on this EtherChannel for dual-active detection. |
Sampled Flow (sFlow) |
This feature allows you to monitor real-time traffic in data networks containing switches and routers. It uses the sampling mechanism in the sFlow agent software on switches to monitor traffic and to forward the sample data to the central data collector. |
IP Source Guard Support for EtherChannels |
You can now configure IP source guard on EtherChannel interfaces. |
Single IP Management |
Cisco Catalyst 1000 Series Switches that support 1G and 10G SFP/SFP+ uplink ports can be part of single IP management. You can use SFP/SFP+ ports with optical cables to connect boxes placed at different locations to form a group, where the compact boxes are placed in different floors or buildings. |
SSH File Transfer Protocol |
The device supports SSH File Transfer Protocol (SFTP). The SFTP client functionality is provided as part of the SSH component and is always enabled on the corresponding device. Therefore, any SFTP server user with the appropriate permission can copy files to and from the device. |
Software Features in Cisco IOS Release 15.2(7)E2
New Software Features
Feature Name |
Description |
---|---|
Dying Gasp |
Dying Gasp is a signal or alert that is generated when a device is about to go down due to a reset or power failure. The system holds enough residual power to send out dying gasp messages after a power failure, notifying the administrator or user. |
Software Features in Cisco IOS Release 15.2(7)E3
New Software Features
Feature Name |
Description |
---|---|
Enable Password Masking |
A new keyword masked-secret is added to the username command to enable the secret masking functionality. The secret input will be masked on the console and will be converted to type 9 by default. |
Show Upgrade and Downgrade History |
The command, show archive sw-upgrade history command displays the upgrades and downgrades performed on a device. Note that manual upgrades done through TFTP of tar files or binary files are not displayed. |
Software Features in Cisco IOS Release 15.2(7)E4
New Software Features
None.
Software Features in Cisco IOS Release 15.2(7)E5
New Software Features
None.
Software Features in Cisco IOS Release 15.2(7)E6
New Software Features
None.
Software Features in Cisco IOS Release 15.2(7)E7
New Software Features
Feature Name |
Description |
---|---|
Data Sanitization |
Supports the use of the National Institute of Standards and Technology (NIST) purge method that renders data unrecoverable through simple, non-invasive data recovery techniques or through state-of-the-art laboratory techniques. For more information, see the "Data Sanitization" chapter of the System Management Configuration Guide. |
Software Features in Cisco IOS Release 15.2(7)E8
New Software Features
None.
Software Features in Cisco IOS Release 15.2(7)E9
New Software Features
None.
Software Features in Cisco IOS Release 15.2(7)E10
New Software Features
None.
Software Features in Cisco IOS Release 15.2(7)E11
New Software Features
None.
Compatibility Matrix
The following table provides software compatibility information.
Catalyst 1000 Switches |
Cisco Identity Services Engine |
Cisco Configuration Professional for Catalyst |
---|---|---|
Cisco IOS Release 15.2(7)E1 |
2.7 |
1.7.1 |
Cisco IOS Release 15.2(7)E3 |
3.0 |
1.8.0 |
Device Manager System Requirements
The following table lists the system requirements for a PC running Cisco Configuration Professional for Catalyst, including Web browser versions.
Minimum Hardware Requirements
Processor Speed |
DRAM |
Number of Colors |
Resolution |
Font Size |
---|---|---|---|---|
233 MHz minimum1 |
512 MB2 |
256 |
1280 x 800 |
Small |
Software Requirements
Operating Systems
-
Windows 10 or later
-
Mac OS X 10.11 or later
Browsers
-
Google Chrome: Version 38 or later (On Windows and Mac)
-
Microsoft Edge
-
Mozilla Firefox: Version 42 or later (On Windows and Mac)
-
Safari: Version 9 or later (On Mac)
Upgrading the Switch Software
Finding the Software Version and Feature Set
The Cisco IOS image is stored as a bin file in a directory that is named with the Cisco IOS release number. The files necessary for web management are contained in a subdirectory. The image is stored on the system board flash device (flash:).
You can use the show version privileged EXEC command to see the software version that is running on your switch.
Note |
Although the show version output always shows the software image running on the switch, the model name shown at the end of this display is the factory configuration and does not change if you upgrade the software license. |
You can also use the dir filesystem: privileged EXEC command to see the directory names of other software images that you might have stored in flash memory.
Software Image
If you have a service support contract and order a software license or if you order a switch, you receive the universal software image and a specific software license.
Image |
Filename |
---|---|
Universal image |
c1000-universalk9-mz.152-7.E1.bin |
Universal image |
c1000-universalk9-tar.152-7.E1.tar |
Web UI
If the Web UI does not load or work properly after the software upgrade, perform the following steps:
-
Specify the authentication method for HTTP server users as local.
Device(config)# ip http authentication local
-
Configure the username and password with privilege 15.
Device(config)# username user privilege 15 password password
-
Clear the browser cache and relaunch the Web UI.
-
Login by entering the privilege 15 username and password.
Scaling Guidelines
For information about feature scaling guidelines, see the Cisco Catalyst 1000 Series Switches datasheet at: https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-1000-series-switches/nb-06-cat1k-ser-switch-ds-cte-en.html
Limitations and Restrictions
-
Speeds of 10/100Mbps are not supported on uplink ports with GLC-TE.
-
Uplink or downlink ports do not support the amber-colored physical light emitting diode (LED). For all port-related LED verification, use the show hardware led command.
-
The uplink and downlink LED do not blink when the traffic rate changes.
-
Multi-chassis EtherChannel (MEC) is not supported.
-
Fast Ethernet ports do not support single IP management.
-
When no cable is connected to Fast Ethernet ports, in the output of the show cable-diagnostics tdr interface command, the pair status is displayed as Normal instead of Open. The pair status is reported as Open only when the cable breaks.
-
The Time Domain Reflectometry (TDR) gives the correct length to fault status only when the overall cable length is greater than 10m. All the other fields in the cable diagnostics result, such as pair polarity, speed, and pair status shows the correct result for cables of any length. The TDR may not report the correct length if one end is terminated.
-
Protocol Independent Multicast (PIM) is not supported.
Caveats
Caveats describe unexpected behavior in Cisco IOS releases. Caveats listed as open in a prior release are carried forward to the next release as either open or resolved.
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 on the identifier.
Open Caveats in Cisco IOS Release 15.2(7)E1
Caveat ID Number |
Description |
---|---|
Catalyst 1000: Multicast address are set to invalid IP and traffic impact after querier port flap. |
|
Catalyst 1000: Multicast stale entries created on STP flap. |
Open Caveats in Cisco IOS Release 15.2(7)E2
There are no open caveats in Cisco IOS Release 15.2(7)E2.
Open Caveats in Cisco IOS Release 15.2(7)E3
Caveat ID Number |
Description |
---|---|
Cisco Catalyst 1000 Series Switches FE -Link flaps seen on random downlink ports on soak testing. |
|
TACACS not working if TACACS group server has the server-private ip key passw command in the Cisco IOS Release 15.2(7)E3 and Cisco IOS XE Release 3.11.3E. |
Open Caveats in Cisco IOS Release 15.2(7)E4
Caveat ID Number |
Description |
---|---|
Cisco Catalyst 1000 Series Switches: DHCPv6 relay is not happening, solicit packets are not forwarded. |
Open Caveats in Cisco IOS Release 15.2(7)E5
Caveat ID Number |
Description |
---|---|
C1000 not send leave group message to mroute port |
Open Caveats in Cisco IOS Release 15.2(7)E6
Bug ID | Headline |
---|---|
CSCwa92718 | MAC-move does not install the MAC learnt from the auth port as static in the FDB. |
CSCwb19078 | Catalyst 1000: When MAB is configured on an interface, specific clients under the switch will lose communication. |
Open Caveats in Cisco IOS Release 15.2(7)E7
Bug ID | Headline |
---|---|
CSCwc50095 |
Crash on Cisco Switch while handling Ethernet Configuration Testing Protocol (ECTP) Pt. 2. |
Open Caveats in Cisco IOS Release 15.2(7)E8
None
Open Caveats in Cisco IOS Release 15.2(7)E9
None
Open Caveats in Cisco IOS Release 15.2(7)E10
None
Open Caveats in Cisco IOS Release 15.2(7)E11
None
Resolved Caveats in Cisco IOS Release 15.2(7)E3
Caveat ID Number |
Description |
---|---|
Remove switch licensing for Cisco Catalyst 1000 Series SKUs. |
|
IPv6 source guard feature is broken in Cisco IOS Release 15.2(7)Ex. |
|
Cisco IOS and IOS XE Software Information Disclosure Vulnerability. |
|
Idle timeout does not clear sessions even if no endpoint is connected. |
|
Multicast packets are replicated twice on Cisco Catalyst 1000 Series Switches two-member stack. |
|
CSCvv00134 |
VTY telnet disable, enable SSH-based on platform request. |
Resolved Caveats in Cisco IOS Release 15.2(7)E3k
Caveat ID Number |
Description |
---|---|
Cisco Catalyst 1000 Series Switches FIPS enablement. |
Resolved Caveats in Cisco IOS Release 15.2(7)E4
Caveat ID Number |
Description |
---|---|
Cisco Catalyst 1000 Series Switches may exhibit random crash/hang/silent-reload. |
|
Member switch fails wired dot1x; primary switch passes dot1x using the same configuration. |
|
Cisco Catalyst 1000 Series Switch members boots up with different version from the primary switch. |
|
Disparity between the configured load-interval command and the value show in show interface command. |
|
Switch gets hung with traces and error logs. |
|
TACACS not working if TACACS group server has the server-private ip key passw command in the Cisco IOS Release 15.2(7)E3 and Cisco IOS XE Release 3.11.3E. |
|
Cisco Catalyst 1000 Series Switch traffic via specific SVI may fail after network loop. |
Resolved Caveats in Cisco IOS Release 15.2(7)E5
Caveat ID Number |
Description |
---|---|
Config hidden on member switch after defaulting the interface. |
|
Switch crashes due to "HTTP Core". |
|
C1000: no cdp enable change to no cdp tlv app after reload. |
|
Username <username> privilege command is not accepted without specifying a password. |
|
DACL is not being removed from the interface on C1000 Series Switches. |
|
C1000 stack switch 2 traffic does not flow between interfaces on different ASIC. |
|
Cisco IOS and IOS XE Software TrustSec CLI Parser Denial of Service Vulnerability. |
Resolved Caveats in Cisco IOS Release 15.2(7)E6
Bug ID | Headline |
---|---|
CSCvz63002 | QoS not working properly when class-maps are matched through ACE using DSCP on Catalyst 1000. |
CSCvz30562 | Catalyst 1000 does not flood IGMP membership reports even though the no ip igmp snooping command is set. |
CSCvx17595 | Catalyst 1000: switchport autostate exclude and no power efficient-ethernet commands added after the stack member powers off or on. |
CSCvz53228 | Catalyst 1000 does not send a leave group message to mroute port. |
Resolved Caveats in Cisco IOS Release 15.2(7)E7
Bug ID | Headline |
---|---|
CSCwa92718 | MAC-move does not install the MAC learnt from the auth port as STATIC in FDB. |
CSCwb05242 | 24 port switch may crash in a stack with 48 port switches. |
CSCwb20452 | Inactivity timer does not work, and session information persists even if the host is disconnected from the hub for Cisco Catalyst 1000 Series Switches. |
CSCwb42475 | 1000 LST is not working on combo port. |
DHCPv6: Memory allocation of DHCPv6 relay option results in crash. |
|
Cisco IOS and IOS XE Software SSH Denial of Service Vulnerability. |
|
Cisco IOS and IOS XE Software Common Industrial Protocol Request Denial of Service Vulnerability. |
Resolved Caveats in Cisco IOS Release 15.2(7)E8
Bug ID | Headline |
---|---|
Dot1x authentication using EAP-TLS is failing on the stack member |
|
Crash on Cisco Switch while handling Ethernet Configuration Testing Protocol (ECTP) Pt. 2 |
|
MAC flaps observed in network when one member link is suspended between C1000 and 9200L stack |
Resolved Caveats in Cisco IOS Release 15.2(7)E9
Bug ID | Headline |
---|---|
C1000: ILPOWER-5-ILPOWER_POWER_CDP_SHUT for Class 4 PDs over switch crash |
|
Cat1000 reports macflap for a host in VLAN between two ports. |
|
"%USB_CONSOLE-3-APP_I2C_WRITE: Application write error" on show terminal |
|
C1000-8T-2G-L uplink combo port goes up - down - up after reloading or powering off/on |
|
When the FWD port goes down in MST0 of C1000, the Altn port becomes Role:Root Sts:BLK |
Resolved Caveats in Cisco IOS Release 15.2(7)E10
Bug ID | Headline |
---|---|
Cisco IOS and IOS XE Software IS-IS Denial of Service Vulnerability |
|
Sending large dot1x frames (>5028) leads to buffer failure |
|
For PoE used and remaining power on 3560, the SNMP walk result is showing inaccurate data |
|
Unable to form STACK with C1000 8 port devices when upgrade to 15.2(7)E9 |
|
c1000 : Vendor OID sysUpTime.6.1.2.1.47.1.1 = NULL TYPE/VALUE |
|
C1000-48T-4X-L/C1000-48P-4X-L // 15.2(7)E7 // TenGigaInterface LED is off |
Resolved Caveats in Cisco IOS Release 15.2(7)E11
Caveat ID Number |
Description |
---|---|
17.4:ASR1K:RP crashed while runnint ISAKMP codenomicon suite |
|
Cisco IOS and IOS XE Software IKEv1 Fragmentation Denial of Service Vulnerabilities |
|
Cisco IOS and IOS XE Software Web UI Cross-Site Request Forgery Vulnerability |
|
Cisco IOS and IOS XE Software Resource Reservation Protocol Denial of Service Vulnerabilit |
|
Catalyst1000 failing to map software information to hardware after setting up a default route |
Troubleshooting
For the most up-to-date, detailed troubleshooting information, see the Cisco TAC website at this URL:
https://www.cisco.com/en/US/support/index.html
Go to Product Support and select your product from the list or enter the name of your product. Look under Troubleshoot and Alerts, to find information for the problem that you are experiencing.
Related Documentation
Information about Cisco IOS XE 16 at this URL: https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html
Cisco Validated Designs documents at this URL: https://www.cisco.com/go/designzone
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: http://www.cisco.com/go/mibs
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