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Cisco Bug: CSCup27399 - mcast nsr/issu: traffic lost during rp fo due to igmp join expired

Last Modified

Aug 07, 2018

Products (1)

  • Cisco Network Convergence System 6000 Series Routers

Known Affected Releases

5.2.2.MCAST 5.2.3.BASE

Description (partial)

Symptom:
IGMP states may timeout after an RP Failover. This results in traffic loss for multicast routes.

Conditions:
This issue is seen after an RP FO. It can typically be seen if one of the Failover Tiers before IGMP has a TIMEOUT. The command to verify this is "show process failover".
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Bug Details Include

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  • Status
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