BugZero | Cisco BugID CSCwn98402 - Debuggability: FP2100 port-channel interfaces flap...

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BugZero | Cisco BugID CSCwn98402 - Debuggability: FP2100 port-channel interfaces flap...

ODD
Cisco
CSCwn98402

Cisco - Defect ID: CSCwn98402

Debuggability: FP2100 port-channel interfaces flap after upgrade

ODD
Cisco
CSCwn98402

Cisco - Defect ID: CSCwn98402

Debuggability: FP2100 port-channel interfaces flap after upgrade

Last updated on February 18th, 2026

BugZero Risk Score
7.8 High

Overall: 7.8

Severity: 8.2

Lifecycle: 9.1

Popularity: 5.1

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Bug Details

Views: 2

Description

Symptom

After successful ASA upgrade some port-channels start experiencing flapping between the firewall and the Nexus switch.

Conditions

This issue is related to LACP use

Workaround

Potential WA is to change LACP from Active to On

Further Problem Description

https://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw/215351-configure-verify-and-troubleshoot-port.html#toc-hId--272798031

Change history

2026-01-08 Added: 002.014(002.113), 009.020(003.010)

Relevant Products

Click on a version to see all relevant bugs

Affected versions:002.014(002.113), 009.020(003.010)

Fixed versions: 002.012(001.102), 002.012(002.066), 002.013(000.367), 002.014(002.117), 002.016(001.114), 002.017(000.521), 007.002(011), 007.004(003), 007.006(004), 009.018(004.061), 009.020(003.017), 009.020(003.099), 009.020(004), 009.022(002.001), 009.022(002.099), 009.023(001.004), 009.024(001), 010.000(000), 082.014(003.091), 082.016(002.053), 082.017(001.033), 082.018(000.263), 082.018(031.036), 099.018(005.091), 099.020(004.030), 099.022(003.015), 099.023(001.067), 099.024(021.005), 099.024(028.002), 9.20.3.20

Relevant Products

Click on a version to see all relevant bugs

Affected versions:002.014(002.113), 009.020(003.010)

Fixed versions: 002.012(001.102), 002.012(002.066), 002.013(000.367), 002.014(002.117), 002.016(001.114), 002.017(000.521), 007.002(011), 007.004(003), 007.006(004), 009.018(004.061), 009.020(003.017), 009.020(003.099), 009.020(004), 009.022(002.001), 009.022(002.099), 009.023(001.004), 009.024(001), 010.000(000), 082.014(003.091), 082.016(002.053), 082.017(001.033), 082.018(000.263), 082.018(031.036), 099.018(005.091), 099.020(004.030), 099.022(003.015), 099.023(001.067), 099.024(021.005), 099.024(028.002), 9.20.3.20

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