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Field Notices

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Cisco 2851/3800 Series 48-Port EtherSwitch Service Module
- Field Notice: FN - 63762 - EHWIC-3G-XXX, EMV-IPVS-16A, HWIC-3G-XXX, NME-XXX, and SM-XXX Might Fail to Boot After a Power Cycle - Replace on Failure 23/Aug/2018
Cisco 2851/3800 Series 24-Port EtherSwitch (w/Stackwise Connectors) SM
- Field Notice: FN - 63762 - EHWIC-3G-XXX, EMV-IPVS-16A, HWIC-3G-XXX, NME-XXX, and SM-XXX Might Fail to Boot After a Power Cycle - Replace on Failure 23/Aug/2018
Cisco 2800/3800 Series 23-Port EtherSwitch Service Module
- Field Notice: FN - 63762 - EHWIC-3G-XXX, EMV-IPVS-16A, HWIC-3G-XXX, NME-XXX, and SM-XXX Might Fail to Boot After a Power Cycle - Replace on Failure 23/Aug/2018
Cisco 2600/3600/3700 Series T3/E3 Network Module
- Field Notice: Interface Renumbering May Occur After IOS Upgrade to 12.3(6) or 12.3(2)T and Subsequent Releases With a Combination of DSL WIC's and Other WIC's or VWIC's Installed in the Same Chassis 21/Mar/2005
Cisco ASR 1000 Series 40-Gbps Embedded Services Processor
- Field Notice: FN - 63764 - Some ASR1000 Products Might Fail to Boot Up After a Power Cycle - Replace on Failure 10/Sep/2018
Cisco ASR 1000 Series 20-Gbps Embedded Services Processor
- Field Notice: FN - 63764 - Some ASR1000 Products Might Fail to Boot Up After a Power Cycle - Replace on Failure 10/Sep/2018
Cisco Catalyst 9600 Series Supervisor Engine 2
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
Cisco Catalyst 9600 Series Supervisor Engine 1
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
Cisco Catalyst 9400 Supervisor Engine-1
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
- Field Notice: FN - 70597 - Limited Number of C9400-SSD-960GB/C9K-F2-SSD-960GB SSDs Will Fail After 1700 Hours of Cumulative Idle Time - BIOS/Firmware Upgrade Recommended 07/Oct/2020
Cisco Catalyst 9400 Supervisor Engine-1XL
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
Cisco Catalyst 9400 Supervisor Engine-1XL-Y
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
Cisco Catalyst 9400X Supervisor Engine-2
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
Cisco Catalyst 9400X Supervisor Engine-2XL
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended 10/Jan/2024
Cisco Catalyst 6000 Gigabit Ethernet Module
- Field Notice: FN - 63743 - Catalyst 6500 - Might Fail to Boot Up After a Software Upgrade or Power Cycle - Replace on Failure 23/Aug/2018
Cisco Catalyst 4500 Series 48-Port 100 BASE-X SFP Line Card
- Field Notice: FN - 63743 - Catalyst 6500 - Might Fail to Boot Up After a Software Upgrade or Power Cycle - Replace on Failure 23/Aug/2018
Cisco Catalyst 4500 Series Supervisor Engine V-10GE
- Field Notice: FN - 63746 - Catalyst C4500 and Catalyst 49xx Might Fail to Boot Up After a Software Upgrade or Power Cycle - Replace on Failure 10/Sep/2018
Cisco Catalyst 4500E Supervisor Engine 8-E
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
Cisco Catalyst 4500E Supervisor Engine 8L-E
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
Cisco Catalyst 3650 Stack Module
- Field Notice: FN - 63949 - Cisco Catalyst 3650 T2 Series Stack Cable Might Cause Intermittent Link Failures - Replace on Failure 25/Jan/2018
Cisco Distributed Forwarding Card
- Field Notice: FN - 63743 - Catalyst 6500 - Might Fail to Boot Up After a Software Upgrade or Power Cycle - Replace on Failure 23/Aug/2018
- Field Notice: FN - 63866 - Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers TCAM Exhaustion - Configuration Change Recommended 20/Aug/2014
Cisco MGX 8850 PXM-45 Processor Switch Module
- Field Notice: FN - 63774 - MGX Cards Might Fail to Boot Up After a Software Upgrade or Power Cycle - Replace on Failure 20/Sep/2018
Cisco Nexus 7000 Series Supervisor 2 Module
- Field Notice: FN - 63975 - Nexus 7000 Supervisor 2 and 2E Embedded Flash Write Error - Software Upgrade Recommended 13/Feb/2018
Cisco Nexus 7000 Series Supervisor 2E Module
- Field Notice: FN - 63975 - Nexus 7000 Supervisor 2 and 2E Embedded Flash Write Error - Software Upgrade Recommended 13/Feb/2018
- Field Notice: FN - 64154 - Nexus 7700 Supervisor 2E Embedded Flash Write Error - Software Upgrade Recommended 15/Jan/2018
Cisco WDM Modules
- Field Notice: FN - 70114 - ONS-CFP2-WDM Units Might Have a Frequency Error on One Specific Channel - Replace on Failure 19/Jul/2023
- Field Notice: FN - 70468 - Firmware Downgrade of CFP2 Modules Will Result in Rx LOS Alarm - Downgrade Is Not Recommended - Workaround Provided 10/Feb/2020

Support Documentation

All Support Documentation for this Series

Security Notices

Security Advisories, Responses and Notices

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