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Cisco Bug: CSCuq50590 - rpf not populating in mroute when learned via mbgp on nexus

Last Modified

Jan 30, 2017

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.2(8a)

Description (partial)

rpf not populating in  mroute when learned via mbgp on nexus

Symptom:
Multicast forwarding stops working. This leads to multicast traffic loss.

rpf shows 0.0.0.0
.

Conditions:
Step1: Unicast client adds a route in urib with nexthop N1
Step2: Multicast client adds a route in urib with the same nexthop N1
Step3: Unicast client deletes its route.

When unicast routes gets deleted it triggers the removal of binding which exists between N1 & resolved routes
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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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