BugZero | Cisco BugID CSCus54398 - CSC-PE: BGP doesn't do rewrite for next-hop after ...

OPERATIONAL DEFECT DATABASE

...

BugZero | Cisco BugID CSCus54398 - CSC-PE: BGP doesn't do rewrite for next-hop after ...

Cisco - Defect ID: CSCus54398

CSC-PE: BGP doesn't do rewrite for next-hop after no vrf/rollback

Cisco - Defect ID: CSCus54398

CSC-PE: BGP doesn't do rewrite for next-hop after no vrf/rollback

Last updated on December 15th, 2023

BugZero Risk Score
6.0 Medium

Overall: 6.0

Severity: 6.4

Lifecycle: 9.1

Popularity: 3.7

What is the BugZero Risk Score?

Cisco Integration

Learn more about where this data comes from

Cisco Integration

Learn more

Bug Scrub Advisor

Streamline upgrades with automated vendor bug scrubs

Bug Scrub Advisor

Learn more

BugZero Enterprise

Wish you caught this bug sooner? Get proactive today.

BugZero Enterprise

Learn more

Bug Details

Description

Symptom

CSC-PE: BGP failed to do Nexthop label rewrite, when VRF is unconfigured and rolled back. This resulted in CSC traffic loss.

Conditions

With CSC configuration: conf t no vrf rollback config last 1

Workaround

process restart mpls_lsd

Further Problem Description

The problem can't be recovered by the followings: 1. clear route vrf xxx 2. unconfig BGP vrf xxx then rollback 3. unconfig vrf xxx static route then rollback 4. shut/no shut interface

Change history

2023-12-15 Added: 5.2.4, 5.2.47, 5.2.5, 5.2.6, 5.3.1, 5.3.2, 5.3.3, 5.3.31, 5.3.4, 6.0.0, 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, 6.1.45, 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, 6.5.90, 6.5.92, 6.5.93, 7.2.1

Links

Original Vendor Announcement

Relevant Products

Click on a version to see all relevant bugs

Affected versions:No known affected versions

Fixed versions: 5.2.4, 5.2.47, 5.2.5, 5.2.6, 5.3.1, 5.3.2, 5.3.3, 5.3.31, 5.3.4, 6.0.0, 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, 6.1.45, 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, 6.5.90, 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

Top Cisco Defects

9.7Defect ID: CSCvg76186
Cisco Smart Install Remote Code Execution and Denial of Service Vulnerability
9.7Defect ID: CSCwj74769
After [non]pairwise key enabling and reboot, bfd ip and port mismatch on device.
9.7Defect ID: CSCwi93213
9800 WLC marked "AAA Server Down" after switchover when using key 6 password encryption
9.7Defect ID: CSCwj45822
Cisco ASA and FTD Software Remote Access VPN Brute Force Denial of Service Vulnerability
9.7Defect ID: CSCuz46500
Fib_mgr process crash due to "not enough memory"

Cisco Integration

Learn more about where this data comes from

Cisco Integration

Learn more

Bug Scrub Advisor

Streamline upgrades with automated vendor bug scrubs

Bug Scrub Advisor

Learn more

BugZero Enterprise

Wish you caught this bug sooner? Get proactive today.

BugZero Enterprise

Learn more

Ready to prevent the next vendor outage?

Get a demo

OPERATIONAL DEFECT DATABASE

Cisco - Defect ID: CSCus54398

CSC-PE: BGP doesn't do rewrite for next-hop after no vrf/rollback

Cisco - Defect ID: CSCus54398

CSC-PE: BGP doesn't do rewrite for next-hop after no vrf/rollback

Last updated on December 15th, 2023

BugZero Risk Score6.0 Medium

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Links

Top Cisco Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.0 Medium