BugZero | Cisco BugID CSCuy94835 - fib_mgr restart causes continuous ROUTING-FIB-3-AS...

Cisco - Defect ID: CSCuy94835

fib_mgr restart causes continuous ROUTING-FIB-3-ASSERT_CTX_RL

Cisco - Defect ID: CSCuy94835

fib_mgr restart causes continuous ROUTING-FIB-3-ASSERT_CTX_RL

Last updated on June 14th, 2023

BugZero Risk Score
7.9 High

Overall: 7.9

Severity: 8.2

Lifecycle: 9.1

Popularity: 6.0

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Bug Details

Description

Symptom

After fib_mgr restart, following message occurs LC/0/2/CPU0:Mar 31 15:06:41.209 : fib_mgr[193]: %ROUTING-FIB-5-ROUTE_UPDATE_DROP : FIB dropping route update: OR LC/0/2/CPU0:Mar 31 15:06:41.209 : %ROUTING-FIB-4-LOCAL_LABEL_CONFLICTS : Possible LABEL-RECYCLING. FIB IPv4 has 0 pending route updates with local-label conflicts. Please run 'show cef ipv4 local-label conflicts detail location ' command for details on conflict and its source.

Conditions

If there is local label recycling in FIB when fib_mgr restarts. The CLI command "show cef ipv4 local-label conflicts detail location " can be used to view label conflicts.

Workaround

Reload the line cards reporting the problem, or restart fib_mgr (service affecting).

Further Problem Description

This issue will be hit if fib_mgr is restarted, while the following counter is increasing. RP/0/RP0/CPU0:ios1#show cef misc location 0/0/cpu0 | inc conflict local-label-conflicts: 75297 Please make sure the counter does increase, before performing any operation that will cause fib_mgr to restart.

Change history

2023-06-14 Added: 5.3.31, 5.3.4, 6.0.1, 6.0.2, 6.1.1, 6.1.12, 6.1.2, 6.1.21, 6.1.22, 6.1.3, 6.1.31, 6.1.32, 6.1.33, 6.1.4, 6.1.42, 6.1.45, 6.2.1, 6.2.2, 6.2.25, 6.2.3, 6.3.1, 6.3.15, 6.3.2, 6.3.3, 6.4.0, 6.4.1, 6.4.2, 6.5.1, 6.5.3, 6.5.90, 6.5.92, 6.5.93, 7.2.1

Links

Original Vendor Announcement

Relevant Products

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Affected versions:No known affected versions

Fixed versions: 5.3.31, 5.3.4, 6.0.1, 6.0.2, 6.1.1, 6.1.12, 6.1.2, 6.1.21, 6.1.22, 6.1.3, 6.1.31, 6.1.32, 6.1.33, 6.1.4, 6.1.42, 6.1.45, 6.2.1, 6.2.2, 6.2.25, 6.2.3, 6.3.1, 6.3.15, 6.3.2, 6.3.3, 6.4.0, 6.4.1, 6.4.2, 6.5.1, 6.5.3, 6.5.90, 6.5.92, 6.5.93, 7.2.1

Relevant Products

Click on a version to see all relevant bugs

Affected versions:No known affected versions

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Cisco - Defect ID: CSCuy94835

fib_mgr restart causes continuous ROUTING-FIB-3-ASSERT_CTX_RL

Cisco - Defect ID: CSCuy94835

fib_mgr restart causes continuous ROUTING-FIB-3-ASSERT_CTX_RL

Last updated on June 14th, 2023

BugZero Risk Score7.9 High

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Links

Top Cisco Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
7.9 High