Cisco Bug: CSCul38883 - MVPN: RPFID of core route and vrf route don't match
Nov 06, 2019
- Cisco Carrier Routing System
Known Affected Releases
Symptom: Traffic is dropped on Egress MVPN PE, due to RPF failure. The RPF interface is set correctly in MFIB as an MDT interface, but the RPF-ID on the (*,G) or (*,G/m) route is incorrect. The RPF-ID should match with the one programmed on the core PIM route or LSP Label, but that is not the case here. Conditions: With PIM Sparse mode, this issue can happen if there are RP-mappings learnt/installed for a /32 (IPv4) or /128 (IPv6) Group range. The active group ranges can be found in "show pim vrf <> [ipv4|ipv6] group-map". The issue can also happen for (*,G/m) routes if Bidir RP mappings are present in an MVPN.
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Bug Details Include
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