Brocade Communications Systems IPMC5000PEF manual Displaying Igmp snooping errors

Displaying IGMP snooping errors

Field Description

rtr port The router ports, which are the ports receiving queries.

Displaying IGMP snooping errors

To display information about possible IGMP errors, enter the show ip multicast error command.

device#show ip multicast error

snoop SW processed pkt: 173, up-time 160 sec

Syntax: show ip multicast error

The following table describes the output from the show ip multicast error command.

Field	Description
SW processed pkt	The number of multicast packets processed by IGMP snooping.
up-time	The time since the IGMP snooping is enabled.

Displaying IGMP group information

To display default, maximum, current, and configured values for system maximum parameters, use the show default values command. The following output example does not show complete output; it shows only IGMP group values.

device(config)#show default values			Current	Configured
System Parameters	Default	Maximum
igmp-snoop-group-add	4096	8192	5000	5000

To display information about IGMP groups, enter the show ip multicast group command.

device#show ip multicast group

p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no

VL70 : 3 groups, 4 group-port, tracking_enabled							source
1	group	p-port	ST	QR	life mode
	224.1.1.2	1/33	no	yes	120	EX	0
2	224.1.1.1	1/33	no	yes	120	EX	0
3	226.1.1.1	1/35	yes	yes	100	EX	0
4	226.1.1.1	1/33	yes	yes	100	EX	0

In this example, an IGMP V2 group is in EXCLUDE mode with a source of 0. The group only excludes traffic from the 0 (zero) source list, which actually means that all traffic sources are included.

To display detailed IGMP group information for a specific group, enter the show ip multicast group detail command.

device#show ip multicast group 226.1.1.1 detail Display group 226.1.1.1 in all interfaces in details.

p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no VL70 : 1 groups, 2 group-port, tracking_enabled

1	group	p-port	ST	QR	life	mode	source
	226.1.1.1	1/35	yes	yes	120	EX	0
	group: 226.1.1.1, EX, permit 0 (source, life):
	life=120, deny 0:	p-port	ST	QR	life mode		source
2	group
	226.1.1.1	1/33	yes	yes	120	EX	0

FastIron Ethernet Switch IP Multicast Configuration Guide	27
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