Allied Telesis 2.6.1 manual Example output from the Show IP Igmp command, Group List

Layer 2 Switching 99

Figure 21: Example output from the SHOW IP IGMP command.

IGMP Protocol

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Status	...........................		Enabled
Default Query Interval			125 secs
Default Timeout Interval			270 secs
Last Member Query Interval		.......	10 (1/10secs)
Last Member Query Count			2
Robustness Variable			2
Query Response Interval			100 (1/10secs)
Interface Name		vlan1	(DR)
Other Querier timeout ... 164 secs
IGMP Proxy		Upstream
Group List
Group. 224.0.1.22		Last Adv. 10.194.254.254		Refresh time 184 secs
Ports	24
All Groups		Last Adv. 10.116.2.1		Refresh time 254 secs
Ports	24

Table 21: Parameters in the output of the SHOW IP IGMP command .

Parameter	Meaning
Status	The status of IGMP; one of “Enabled” or “Disabled”.
Default Query Interval	The default interval at which Host Membership Queries are
	sent.
Default Timeout Interval	The default interval after which entries will be removed
	from the group database, if no Host Membership Report is
	received.
Last Member Query Interval	Max Response Time inserted into Group-Specific Queries
	sent in response to Leave Group messages, and is also the
	amount of time between Group-Specific Query messages.
Last Member Query Count	The number of Group-Specific Queries sent before the
	switch assumes there are no local members.
Robustness Variable	IGMP is robust to (Robustness Variable-1) packet losses.
Query Response Interval	The Max Response Time (in 1/10 secs) inserted into the
	periodic General Queries.
Interface Name	The name of an interface configured for IGMP.
Other Querier timeout	The length of time that remains before a multicast router
	decides that there is no longer another multicast router
	which should be the querier.
IGMP Proxy	The status of IGMP Proxy; one of “Off”, “Upstream” or
	“Downstream”.
Group List	A list of multicast group memberships for this interface.
Group	The group multicast address.
Last Adv.	The last host to advertise the membership report.
Refresh time	The time interval (in seconds) until the membership group
	will be deleted if it does not receive another membership
	report before then.
Ports	The list of ports listening to this group.

Software Release 2.6.1 C613-02039-00 REV A