Disabling Or Re-Enabling The Querier Function - HP procurve 8100fl series Management And Configuration Manual

I 01/15/01 09:01:13 igmp: DEFAULT_VLAN: Other Querier detected
I 01/15/01 09:01:13 igmp: DEFAULT_VLAN: This switch is no longer Querier
In the above scenario, if the other device ceases to operate as a Querier on the
default VLAN, then the switch detects this change and can become the Querier
as long as it is not pre-empted by some other IGMP Querier on the VLAN. In
this case, the switch Event Log lists messages similar to the following to
indicate that the switch has become the Querier on the VLAN:
I 01/15/01 09:21:55 igmp: DEFAULT_VLAN: Querier Election in process
I 01/15/01 09:22:00 igmp: DEFAULT_VLAN: This switch has been elected as
Querier

Disabling or Re-enabling the Querier Function

When the switch has an IP address on a given VLAN, it automatically operates
as a Querier for that VLAN if it does not detect a multicast router or another
switch functioning as a Querier. When enabled (the default setting), the
switch's querier function eliminates the need for a multicast router. To disable
or re-enable the ability for the switch to become querier if necessary, use the
following command.
Syntax: [no] ip igmp snooping querier
For example, here are methods to disable and re-enable the IGMP querier
function on VLAN 2 (VID = 2).
ProCurve(config)# vlan 2
ProCurve(config-vlan-2)# no ip igmp snooping querier
ProCurve(config-vlan-2)# ip igmp snooping querier
This VLAN-based command disables or re-enables the ability for the switch
to become querier if necessary. The no version of the command disables the
querier function on the switch. The show ip igmp snooping config command
displays the current querier command. (Default Querier Capability: Enabled.)
Enters configuration context for VLAN 2.
Disables IGMP querier function on vlan 2.
Re-enables IGMP querier function on vlan 2.
Multimedia Traffic Control with IP Multicast (IGMP)
How IGMP Operates
10-15