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DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
165
config igmp_snooping
Purpose Used to configure IGMP snooping on the Switch.
Syntax
config igmp_snooping [ vlan <vlan_name 32> |all] { host_timeout <sec 1-16711450>
| router_timeout <sec 1-16711450> | leave_timer <sec 1-16711450> | state
[enable|disable] |fast_leave [enable|disable] | report_suppression [enable |
disable]} (1)
Description This command is used to configure IGMP snooping on the Switch.
Parameters
vlan <vlan_name 32> − The name of the VLAN for which IGMP snooping is to be
configured.
host_timeout <sec 1–16711450> − Specifies the maximum amount of time a host can be
a member of a multicast group without the Switch receiving a host membership report.
The default is 260 seconds.
Note: This parameter is configurable, but will not take effect. The parameter remains in
order to be compatible with the older version of the CLI.
router_timeout <sec 1–16711450> − Specifies the maximum amount of time a route can
be a member of a multicast group without the Switch receiving a host membership report.
The default is 260 seconds.
Note: This parameter is configurable, but will not take effect. The parameter remains in
order to be compatible with the older version of the CLI.
leave_timer <sec 1–16711450> − Specifies the amount of time a Multicast address will
stay in the database before it is deleted, after it has sent out a leave group message. The
default is 2 seconds.
Note: This parameter is configurable, but will not take effect. The parameter remains in
order to be compatible with the older version of the CLI.
state [enable | disable] − Allows users to enable or disable IGMP snooping for the
specified VLAN.
fast_leave [enable | disable] – This parameter allows the user to enable the fast leave
function. Enabled, this function will allow members of a multicast group to leave the group
immediately (without the implementation of the Last Member Query Timer) when an
IGMP Leave Report Packet is received by the Switch.
report_suppression [enable|disable] – This parameter allows the user to disable or enable
the report suppression function. When report suppression is enabled, the Switch sends
the first IGMP report from all hosts for a group to all the multicast routers. The Switch
does not send the remaining IGMP reports for the group to the multicast routers. This
feature prevents duplicate reports from being sent to the multicast devices.
Restrictions Only Administrator and Operator-level users can issue this command.
Example usage:
To configure IGMP snooping:
DGS–3426:5# config igmp_snooping vlan default host_timeout 250 state enable
Command: config igmp_snooping vlan default host_timeout 250 state enable
Success.
DGS–3426:5#
