362 CHAPTER 11: IGMP SNOOPING COMMANDS
History — Introduced in MSS Version 3.0.
Usage — The query response interval is applicable only when the WX is
querier for the subnet. For the WX to become the querier, the
pseudo-querier feature must be enabled on the WX and the WX must
have the lowest IP address among all the WX switches eligible to become
a querier. To enable the pseudo-querier feature, use set igmp querier.
Examples — The following command changes the query response
interval on VLAN orange to 50 tenths of a second (5 seconds):
WX1200# set igmp qri 50 vlan orange
success: change accepted.
See Also
■ “set igmp lmqi” on page 356
■ “set igmp oqi” on page 359
■ “set igmp qi” on page 360
■ “set igmp querier” on page 362
■ “set igmp rv” on page 364
set igmp querier Enables or disables the IGMP pseudo-querier on a WX, on one VLAN or
all VLANs.
Syntax —
set igmp querier {enable | disable} [vlan vlan-id]
■ enable — Enables the pseudo-querier.
■ disable — Disables the pseudo-querier.
■ vlan vlan-id — VLAN name or number. If you do not specify a
VLAN, the pseudo-querier is enabled or disabled on all VLANs.
Defaults — The pseudo-querier is disabled on all VLANs by default.
Access — Enabled.
History — Introduced in MSS Version 3.0.
Usage — 3Com recommends that you use the pseudo-querier only when
the VLAN contains local multicast traffic sources and no multicast router
is servicing the subnet.
