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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual
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IGMP SNOOPING COMMANDS
The IGMP Snooping commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the
following table.
Command Parameters
config igmp_snooping [<vlan_name 32> | all] {host_timeout <sec 1-16711450> | router_timeout
<sec 1-16711450> | leave_timer <sec 0-16711450> | state [enable | disable |
| fast_leave [enable | disable]}
config igmp_snooping querier [<vlan_name 32> | all] {query_interval <sec 1-65535> | max_response_time
<sec 1-25> | robustness_variable <value 1-255> |
last_member_query_interval <sec 1-25> | state [enable | disable]}
config router_ports <vlan_name 32> [add | delete] <portlist>
config router_ports_forbidden < vlan_name 32> [add | delete] <portlist>
enable igmp snooping forward_mcrouter_only
show igmp snooping {vlan <vlan_name 32>}
disable igmp snooping
show igmp snooping group {vlan <vlan_name 32>}
show router ports {vlan <vlan_name 32>} {static | dynamic}
Each command is listed, in detail, in the following sections.
config igmp_snooping
Purpose Used to configure IGMP snooping on the Switch.
Syntax
config igmp_snooping [<vlan_name 32> | all] {host_timeout <sec 1-
16711450> | router_timeout <sec 1-16711450> | leave_timer <sec 0-
16711450> | state [enable | disable]} | fast_leave [enable | disable]}
Description This command allows the user to configure IGMP snooping on the Switch.
Parameters
<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.
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.
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. An entry of zero (0) specifies an immediate deletion of the Multicast
address. The default is 2 seconds.
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.
Restrictions Only administrator-level users can issue this command.
Example usage:
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