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Cisco Bug: CSCuq33737 - Multicast Auto-RP mappings leak when interface flaps

Last Modified

Sep 12, 2019

Products (6)

  • Cisco Carrier Routing System
  • Cisco IOS XR Software
  • Cisco XR 12410 Router
  • Cisco XR 12416 Router
  • Cisco XR 12404 Router
  • Cisco XR 12406 Router

Known Affected Releases

4.1.2.MCAST

Description (partial)


Symptom:
On a MPLS PE, it is possible for 
auto-RP announcements from one VRF to leak into a different VRF


Conditions:
This issue can happen under the following conditions:

- Several VRFs on the same MPLS PE router, where more than two of them use multicast auto-RP
- MPLS PE with a customer MVPN VRF with a single PE-CE customer facing interface and that interface flaps down and comes back up.
- If the RP or Auto-RP MA stops sending announcement for 4.5 minutes and then resumes.
- RP and Auto-RP MA announcements are lost due to some other reason for 4.5 minutes and then resume.

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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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