Guest

Preview Tool

Cisco Bug: CSCvw01364 - N9k : locally originated control packets to directly connected host sent towards EVPN fabric instead

Last Modified

Oct 28, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.3(5)

Description (partial)

Symptom:
* the LEAF A while originating the IPv6 BGP packets towards directly connected FW, sends it across EVPN fabric instead of directly
* the remote LEAVES (C/D) bounces the packet back and then it's correctly forwarded towards Firewall.
* capture of packets (eg. ethanalyzer) originated by LEAF A shows that the packet gets VxLAN encapsulated and sent towards the VIP of leaves C/D

Conditions:
* EVPN fabric
* Device (eg. FW) connected to the LEAF_A/B peers IPv6 eBGP with it (possibly other protocols affected as well)
* The Firewall is deployed in Active/Standby mode: Active FW connected to one pair of leaves (A/B), standby connected to the other pair (leaves C/D)
Bug details contain sensitive information and therefore require a Cisco.com 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.