Install guide

Software Version 2.9.1 57
Software Version 2.9.1
C613-10486-00 REV C
Command Reference Updates
This section describes each new command and the changed portions of
modified commands and output screens. For modified commands and output,
the new parameters, options, and fields are shown in bold.
set igmpsnooping vlan
Syntax SET IGMPSNooping VLAN={vlan-name|1..4094|ALL}
[Fastleave={ON|OFF|YES|NO|True|False}]
[QUErysolicit={OFF|NO|False|ON|YES|True}]
where vlan-name is a unique name from 1 to 32 characters. Valid characters are
uppercase and lowercase letters, digits, the underscore, and hyphen. The
vlan-name cannot be a number or all.
Description This command enables or disables Fast Leave processing and the new query
solicitation feature for IGMP Snooping.
The vlan parameter specifies the VLAN on which the specified feature is to be
enabled or disabled. The default is all.
The fastleave parameter specifies whether Fast Leave processing is enabled or
disabled. If you specify on, yes or true then Fast Leave processing is enabled on
the specified VLAN or all VLANs. If you specify off, no or false then Fast
Leave processing is disabled on the specified VLAN or all VLANs. Note that
Fast Leave should not be configured on a port that has multiple hosts attached
because it may adversely affect multicast services to some hosts. The default is
off.
This command deprecates the following command, which is still valid:
set igmpsnooping fastleave={on|yes|true|off|no|false}
[interface=vlan]
The querysolicit parameter specifies whether query solicitation is enabled on
the specified VLANs. Query solicitation minimises loss of multicast data after a
topology change on networks that use EPSR or spanning tree (STP, RSTP, or
MSTP) for loop protection. When an EPSR or STP topology change occurs,
IGMP snooping sends a query solicit message out every VLAN that query
solicitation is enabled on. When the IGMP Querier receives the message, it
responds by sending a General Query, which all IGMP listeners respond to.
This refreshes snooped group membership information in the network. The
default is on for the root bridge in an STP topology and the master node in an
EPSR topology and off for other routers or switches.
Example To enable IGMP Snooping Fast Leave processing on VLAN “vlan2”, use the
command:
set igmpsn vlan=vlan2 f=on