Nortel Networks 2300 Series manual See Also clear igmp statistics on

IGMP Snooping Commands 443

Table 5: Output for show igmp statistics (continued)

Field	Description
IGMP message type	Type of IGMP message, continued:
	• Mrouter-Term—Multicast router termination
	messages. A multicast router sends this type of
	message when multicast forwarding is disabled
	on the router interface, the router interface is
	administratively disabled, or the router itself is
	gracefully shutdown.
	• Mrouter-Sol—Multicast router solicitation
	messages. A multicast client or a WSS sends this
	type of message to immediately solicit multicast
	router advertisement messages from the multicast
	routers in the subnet.
	• DVMRP—Distance Vector Multicast Routing
	Protocol (DVMRP) messages. Multicast routers
	running DVMRP exchange multicast information
	with these messages.
	• PIM V1—Protocol Independent Multicast (PIM)
	version 1 messages. Multicast routers running
	PIMv1 exchange multicast information with these
	messages.
	• PIM V2—PIM version 2 messages.
Received	Number of packets received.
Transmitted	Number of packets transmitted. This number includes both
	multicast packets originated by the WSS and multicast packets
	received and then forwarded by the switch.
Dropped	Number of IGMP packets dropped by the WSS.
Topology notifications	Number of Layer 2 topology change notifications received by the
	WSS.
	Note: In the current software version, the value in this field is
	always 0.
Packets with unknown IGMP	Number of multicast packets received with an unrecognized
type	multicast type.
Packets with bad length	Number of packets with an invalid length.
Packets with bad IGMP	Number of packets with an invalid IGMP checksum value.
checksum
Packets dropped	Number of multicast packets dropped by the WSS.

See Also clear igmp statistics on page 415

Nortel WLAN—Security Switch 2300 Series Command Line Reference