Changing Igmp V1 And V2 Parameters; Modifying Igmp (V1 And V2) Query Interval Period; Modifying Igmp (V1 And V2) Membership Time - Dell PowerConnect B-RX Configuration Manual

Changing IGMP V1 and V2 parameters

IGMP allows Brocade routers to limit the multicast of IGMP packets to only those ports on the
router that are identified as IP Multicast members.
The router actively sends out host queries to identify IP Multicast groups on the network
The following IGMP V1 and V2 parameters apply to PIM and DVMRP:
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To change these parameters, you must first enable IP multicast routing by entering the following CLI
command at the global CLI level.
BigIron RX(config)# ip multicast-routing
Syntax: [no] ip multicast-routing
NOTE
You must enter the ip multicast-routing command before changing the global IP Multicast
parameters. Otherwise, the changes do not take effect and the software uses the default values.
Also, entering no ip multicast-routing will reset all parameters to their default values.

Modifying IGMP (V1 and V2) query interval period

The IGMP query interval period defines how often a router will query an interface for group
membership. Possible values are 1 – 3,600 seconds and the default value is 125 seconds.
To modify the default value for the IGMP (V1 and V2) query interval, enter the following.
BigIron RX(config)# ip igmp query 120
Syntax: ip igmp query-interval <1-3600>

Modifying IGMP (V1 and V2) membership time

Group membership time defines how long a group will remain active on an interface in the absence
of a group report. Possible values are from 1 – 7200 seconds and the default value is 260
seconds.
To define an IGMP (V1 and V2) membership time of 240 seconds, enter the following.
BigIron RX(config)# ip igmp group-membership-time 240
Syntax: ip igmp group-membership-time <1-7200>
BigIron RX Series Configuration Guide
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IGMP query interval – Specifies how often the BigIron RX queries an interface for group
membership. Possible values are 1 – 3600. The default is 125.
IGMP group membership time – Specifies how many seconds an IP Multicast group can remain
on a BigIron RX interface in the absence of a group report. Possible values are 1 – 7200. The
default is 260.
IGMP maximum response time – Specifies how many seconds the BigIron RX will wait for an
IGMP response from an interface before concluding that the group member on that interface is
down and removing the interface from the group. Possible values are 1 – 10. The default is 10.
Changing IGMP V1 and V2 parameters
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