Configuring IGMP Snooping Port Functions 561
Configuring Static Ports If all the hosts attached to a port are interested in the multicast data addressed to
a particular multicast group or the multicast data that a particular multicast source
sends to a particular group, you can configure static (*, G) or (S, G) joining on that
port, namely configure the port as a group-specific or source-and-group-specific
static member port.
You can configure a port of a switch to be a static router port, through which the
switch can forward all the multicast traffic it received.
Follow these steps to configure static ports:
n
■ The static (S, G) joining function is available only if a valid multicast source
address is specified and IGMP Snooping version 3 is currently running on the
switch.
■ A static member port does not respond to queries from the IGMP querier;
when static (*, G) or (S, G) joining is enabled or disabled on a port, the port
does not send an unsolicited IGMP report or an IGMP leave group message.
■ Static member ports and static router ports never age out. To remove such a
port, you need to use the corresponding command.
Configuring Simulated
Joining
Generally, a host running IGMP responds to IGMP queries from the IGMP querier.
If a host fails to respond due to some reasons, the multicast router may deem that
no member of this multicast group exists on the network segment, and therefore
will remove the corresponding forwarding path.
To do… Use the command… Remarks
Enter system view system-view -
Enter VLAN view vlan vlan-id -
Configure router port aging
time
igmp-snooping
router-aging-time interval
Optional
105 seconds by default
Configure member port aging
time
igmp-snooping
host-aging-time interval
Optional
260 seconds by default
To do… Use the command… Remarks
Enter system view system-view -
Enter the
corresponding view
Enter Ethernet port
view
interface
interface-type
interface-number
Use either command.
Enter port group view port-group { manual
port-group-name |
aggregation agg-id }
Configure the port(s) as static member port(s) igmp-snooping
static-group
group-address
[ source-ip
source_address ] vlan
vlan-id
Required
Disabled by default
Configure the port(s) as static router port(s) igmp-snooping
static-router-port
vlan vlan-id
Required
Disabled by default
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