Preview Tool

Cisco Bug: CSCuo93591 - MAC aging value fails to update in NXOS

Last Modified

Feb 16, 2018

Products (1)

  • Cisco Unified Computing System

Known Affected Releases


Description (partial)

A Fabric Interconnect can exhibit behavior where the mac address table aging time can get stuck at 300 in End-host mode, and you can not change it.  The default in End-host mode is 14,500.  This can cause connectivity problems if the upstream devices have arp timers configured for less than this.

This has been experience on a 6100 series Fabric Interconnect running 2.1(1d).
Issue was also observed on 6200 series FI and it was resolved after upgrading to 2.2.6e.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.