Dell PowerEdge VRTX User Manual
Page 593
IGMP Snooping Commands
593
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D E LL CO N F I D E N T IA L – P R E L I M I N A RY 4 / 3 / 14 - F O R PR O O F O N LY
Snooping querier on a specific VLAN. Use the no form of this command to
disable Querier election mechanism.
Syntax
ip igmp snooping vlan
vlan-id
querier election
no ip igmp snooping vlan
vlan-id
querier election
Parameters
•
vlan-id
—Specifies the VLAN.
Default Configuration
Enabled
Command Mode
Global Configuration mode
User Guidelines
Use the no form of the ip igmp snooping vlan querier election command to
disable IGMP Querier election mechanism on a VLAN.
If the IGMP Querier election mechanism is enabled, the IGMP Snooping
querier supports the standard IGMP Querier election mechanism specified in
RFC2236 and RFC3376.
If IGMP Querier election mechanism is disabled, IGMP Snooping Querier
delays sending General Query messages for 60 seconds from the time it was
enabled. During this time, if the switch did not receive an IGMP query from
another Querier - it starts sending General Query messages. Once the switch
acts as a Querier, it will stop sending General Query messages if it detects
another Querier on the VLAN. In this case, the switch will resume sending
General Query messages if it does hear another Querier for Query Passive
interval that equals:
<Robustness>*<Query Interval> + 0.5*<Query Response Interval).
See the
ip igmp last-member-query-interval
, and
commands for configurations of these parameters.
It is recommended to disable IGMP Querier election mechanism if there is an
IPM Multicast router on the VLAN.