Cisco III System Message Guide - Page 195

Chapter 2 Messages and Recovery Procedures MCAST Messages MCAST Messages This section contains Layer 2 Multicast log (MCAST) messages. MCAST-6 Error Message %MCAST-6-ETRACK_LIMIT_EXCEEDED: [chars] snooping was trying to allocate more explicit-tracking entries than what allowed ([dec] Explanation The allocation of explicit-tracking entries is limited so that IGMP and MLD snooping are prevented from consuming too many system resources. Recommended Action Reduce the number of (s,g) channels or the number of receivers. When the explicit-tracking database has gone beyond its limit, new membership for any channels will not be tracked. This condition might cause high-leave latency when those members leave a channel. Another alternative is to increase the limit from configuration mode by entering the ip igmp snooping limit track max-entries command. It is important to note that increasing the value of max-entries could cause the system to fail because of high use of system resources. Error Message %MCAST-6-GC_LIMIT_EXCEEDED: IGMP snooping was trying to allocate more Layer 2 entries than what allowed ([dec]) Explanation IGMP snooping attempted to allocate more Layer 2 entries than the permitted amount specified in the message. Recommended Action No action is required. Error Message %MCAST-6-IGMP_CGMP_MODE: IGMP snooping now is running in IGMP_CGMP mode on vlan [dec] Explanation The specified VLAN is running in IGMP/CGMP mode. Recommended Action No action is required. Error Message %MCAST-6-IGMP_ONLY_MODE: IGMP snooping now is running in IGMP_ONLY mode on vlan [dec] Explanation The specified VLAN is running in IGMP mode. Recommended Action No action is required. Error Message %MCAST-6-IGMP_PKT_DROPPED: IGMP: IGMP Queue full (high packet rate/CPU busy), dropped [dec] packet(s) in last 5 minutes Explanation The IGMP packet queue is not able to accommodate additional packets. Any additional packets will be dropped without processing. Recommended Action Reduce the IGMP packet rate to prevent packets from being dropped. OL-11469-02 Catalyst Supervisor Engine 32 PISA Cisco IOS System Message Guide, Release 12.2ZY 2-165