Guest

Preview Tool

Cisco Bug: CSCvu87085 - OSPF is querying BGP AS number with incorrect VRF ID

Last Modified

Oct 19, 2020

Products (2)

  • CiscoPro Workgroup EtherSwitch Software
  • Cisco Nexus 7000 Series Switches

Known Affected Releases

7.2(2)D1(2)

Description (partial)

Symptom:
OSPF is querying BGP AS number with incorrect VRF ID:

- BGP is not aware about this VRF ID it returns the global ASN (configured with ?router bgp <inst  -- ASN>?). So this explains the case when OSPF does not use the 4 byte ASN (local-as) configured but uses global ASN instead.

- BGP has some other VRF matching to VRF ID provided by OSPF. Then BGP provides AS number for that VRF. This explains why OSPF was using tag of other VRFs.

Conditions:
OSPF to BGP redistribution
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.