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Multicast Forwarding
Configuring IGMP Snooping
STEP 5
Cisco 220 Series Smart Plus Switches Administration Guide Release 1.0.0.x
•
MRouter Ports Auto Learn—Enable or disable auto learning of the ports to
which the Mrouter is connected.
•
Query Robustness—Enter the Robustness Variable value to be used if this
switch is the elected querier.
•
Query Interval—Enter the interval between the General Queries to be used
if this switch is the elected querier.
•
Query Max Response Interval—Enter the delay used to calculate the
Maximum Response Code inserted into the periodic General Queries.
•
Last Member Query Counter—Enter the number of IGMP Group-Specific
Queries sent before the switch assumes there are no more members for the
group, if the switch is the elected querier.
•
Last Member Query Interval—Enter the maximum response delay to be
used if the switch cannot read maximum response time value from group-
specific queries sent by the elected querier.
•
Immediate Leave—Enable Immediate Leave to decrease the time it takes to
block a Multicast stream sent to a member port when an IGMP Group Leave
message is received on that port.
•
IGMP Querier Status—Enable or disable the IGMP Querier.
There should be only one IGMP querier in a network. The switch supports
standards-based IGMP querier election. Some of the values of the
operational parameters of this table are sent by the elected querier. The
other values are derived from the switch.
•
IGMP Querier Version—Select the IGMP version used if the switch
becomes the elected querier. Select IGMPv3 if there are switches and/or
Multicast routers in the VLAN that perform source-specific IP Multicast
forwarding.
Click Apply. The IGMP Snooping settings are defined, and the Running
Configuration is updated.
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