Preview Tool

Cisco Bug: CSCuq54085 - MAC is not learnt from ARP with QinQ and DAI enabled

Last Modified

Nov 27, 2020

Products (1)

  • Cisco ME 3400 Series Ethernet Access Switches

Known Affected Releases


Description (partial)

MAC is not learnt from ARP packets with QinQ and DAI enabled

When DAI is enabled, MAC address is not learnt from ARP packet:
- on regular trunk interface and when frame is double tagged 
- on port with "mode dot1q-tunnel" configuration and when frame is with one tag

Problem is seen when DAI si enabled for any vlan
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.