BugZero | Cisco BugID CSCuh50329 - High CPU on VSS active due to SA miss packets

Cisco - Defect ID: CSCuh50329

High CPU on VSS active due to SA miss packets

Cisco - Defect ID: CSCuh50329

High CPU on VSS active due to SA miss packets

Last updated on April 2nd, 2025

BugZero Risk Score
6.3 Medium

Overall: 6.3

Severity: 6.4

Lifecycle: 9.1

Popularity: 6.9

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Bug Details

Description

Symptom

High CPU seen on VSS active.

Conditions

Sup7-E, 4500-X IOS-XE version 3.4.0SG, 3.4.1SG, 3.4.2SG in VSS mode Seen after switchover to standby supervisor occasionally

Workaround

On active: clear mac address-table

Further Problem Description

To be fixed in upcoming IOS-XE 3.4.3SG

Change history

2025-04-02 changed to Moderate

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Cisco - Defect ID: CSCuh50329

High CPU on VSS active due to SA miss packets

Cisco - Defect ID: CSCuh50329

High CPU on VSS active due to SA miss packets

Last updated on April 2nd, 2025

BugZero Risk Score6.3 Medium

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Links

Top Cisco Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.3 Medium