Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
Chapter 2 IGMP Snooping Configuration
2-11
Follow these steps to configure static ports:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter Ethernet
port view
interface interface-type
interface-number
Enter the
corresponding
view
Enter port
group view
port-group
{
manual
port-group-name
|
aggregation agg-id
}
Required
Use either
command
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
Note:
z
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.
z
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.
z
Static member ports and static router ports never age out. To remove such a port,
you need to use the corresponding command.
2.4.4 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 avoid this situation from happening, you can enable simulated joining on a port of
the switch, namely configure the port as a simulated member host for a multicast group.
When an IGMP query is heard, the simulated host gives a response. Thus, the switch
can continue receiving multicast data.
A simulated host acts like a real host, as follows:
z
When a port is configured as a simulated member host, the switch sends an
unsolicited IGMP report through that port.
