Preview Tool

Cisco Bug: CSCun10615 - N6k - Software MAC learning of SVI MAC in HW table

Last Modified

Jun 04, 2019

Products (7)

  • Cisco Nexus 6000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch

Known Affected Releases

6.0(2)N2(3) 7.0(0)N1(0.527)

Description (partial)

IP/ARP connectivity affected as a result of Dynamic learning of SVI MAC on Nexus 6000 switch. This may lead to black-holing of traffic.

SVI MAC (BIA) is seen coming from the network due to a network loop. Not all type of packets would cause MAC table to updated as Dynamic for a System MAC. So far is seen to be happening with DHCP packets.
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.