BugZero | Cisco BugID CSCvp23256 - ipfib crash seen when option b MPLS routes churn

Cisco - Defect ID: CSCvp23256

ipfib crash seen when option b MPLS routes churn

Cisco - Defect ID: CSCvp23256

ipfib crash seen when option b MPLS routes churn

Last updated on February 18th, 2026

BugZero Risk Score
6.1 Medium

Overall: 6.1

Severity: 6.4

Lifecycle: 9.1

Popularity: 4.6

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Bug Details

Description

Symptom

- Process ipfib on the linecard will crash generating a core dump. - An LDP neighbor will likely go down just before ipfib crashes.

Conditions

- Option b MPLS routes learned on the switch.

Workaround

- None

Further Problem Description

Change history

2025-11-17 Added: 8.4(1)

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Cisco - Defect ID: CSCvp23256

ipfib crash seen when option b MPLS routes churn

Cisco - Defect ID: CSCvp23256

ipfib crash seen when option b MPLS routes churn

Last updated on February 18th, 2026

BugZero Risk Score6.1 Medium

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Links

Top Cisco Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.1 Medium