Cisco Bug: CSCsz95860 - MR:13i:process restart qos_ma_ea caused igmpsn-DP_congestion
Jan 10, 2017
- Cisco Carrier Routing System
Known Affected Releases
Issue was not reproducible in 3.9.1 L2vpn is moving to use GSP directly in 4.0 instead of using ENS so this issue will not be applicable in 4.0 ddts to be closed as it was opened against 3.7.3 where it occured 4/4 times Symptom: The following syslog message are observed after process qos_ma_ea on RP node restarted: igmpsn: %L2-IGMPSN-3-DP_CONGESTION : Layer 2 multicast data plane programming congestion And IGMP snooping traffic will not get forwarded until the condition is clear about 90 seconds later and this log is seen: %L2-IGMPSN-5-DP_CONGESTION_CLEAR : Layer 2 multicast data plane programming congestion cleared Conditions: When a system has the 40x1GE Linecard with 262,144 egress queues and 130,072 ingress QOS queues configured and IGMP snooping enabled on another set of Linecard in another slot.
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