Netgear FSM726v3 7200 managed switch v8.x CLI reference manual - Page 382
should be enabled on the device and the interface in order to monitor packets for a particular
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Managed Switch CLI Manual, Release 8.0 debug igmpsnooping packet transmit This command enables tracing of IGMP Snooping packets transmitted by the switch. Snooping should be enabled on the device and the interface in order to monitor packets for a particular interface. Default Format Mode disabled debug igmpsnooping packet transmit Privileged EXEC A sample output of the trace message is shown below. JAN 01 02:45:06 192.168.17.29-1 IGMPSNOOP[185429992]: igmp_snooping_debug.c(116) 908 % Pkt TX - Intf: 1/0/20(20), Vlan_Id:1 Src_Mac: 00:03:0e:00:00:00 Dest_Mac: 01:00:5e:00:00:01 Src_IP: 9.1.1.1 Dest_IP: 225.0.0.1 Type: V2_Membership_Report Group: 225.0.0.1 The following parameters are displayed in the trace message: Parameter TX Intf Src_Mac Dest_Mac Src_IP Dest_IP Type Group Definition A packet transmitted by the device. The interface that the packet went out on. Format used is unit/slot/port (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. Source MAC address of the packet. Destination multicast MAC address of the packet. The source IP address in the IP header in the packet. The destination multicast IP address in the packet. The type of IGMP packet. Type can be one of the following: • Membership Query - IGMP Membership Query • V1_Membership_Report - IGMP Version 1 Membership Report • V2_Membership_Report - IGMP Version 2 Membership Report • V3_Membership_Report - IGMP Version 3 Membership Report • V2_Leave_Group - IGMP Version 2 Leave Group Multicast group address in the IGMP header. Utility Commands v1.0, July 2009 6-65
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