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Last Modified

Sep 12, 2019

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

5.1.0.MCAST 5.2.0.MCAST 5.3.0.MCAST

Description (partial)

The MoFRR error "ROUTING-MOFRR_FLOW-3-DETECT_LOSS" log message is periodically shown on the router console.  No traffic loss is expected.

1. Each MoFRR-enabled multicast route requires two RPF interfaces.  The two RPF intfs are configured on two different LCs.  For the RPF intf type is bundle, it has only single bundle member configured in a specific LC.
In other words,  on the issue LC, it does not host both RPFs, but must host one RPF.

2.  More than 2048 MoFRR routes have been ever installed in the router. For the same route, if it is deleted and created again, due to IGMP join request, control plane considers it as a completely new route installation. 

3. Some existing MoFRR routes have been removed from the router in history. Starting from the 2049th MoFRR route installation,  the MoFRR error message can be shown in the router console.
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