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Cisco Bug: CSCsz37833 - UNI:IPv6 unicast downstream loss when RP-SO with MLD-zapping

Last Modified

Feb 09, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

ASR does not immediately respond to IPv6 NS query following an RP switchover with MLD zappings coming from downstream hosts.

Due to this bug, the upstream neighbour router may delete downstream neighbour entry and cause a downstream IPv6 unicast packet drops.
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