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Cisco Bug: CSCur89779 - (S, G) not timing out even if there is no traffic

Last Modified

Mar 26, 2018

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

6.2(12)S33 7.1(0)D1(0.320) 7.3(0)ID(0.5)

Description (partial) 

Symptom:
(S, G) entries are alive in network long after source has stopped sending traffic

Conditions:
In RP on a stick scenario. While Source S was active and RP received a (S, G, Rp-bit) prune message. There are active Receivers for G in the network joining shared tree even after Source has stopped but Unicast route to source is not changed. Issue is applicable to N5k/N6k platforms as well.
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