3Com 7757 Configuration Manual page 458

458 C 46: IGMP C
HAPTER
c
Configuring IGMP
Simulated Joining
c
ONFIGURATION
Table 365 Configure IGMP multicast groups on the interface
Operation
Limit the range of multicast
groups that the interface
serves
CAUTION:
If the number of joined multicast groups on the interface exceeds the
■
user-defined limit, new groups are not allowed to join any more.
If the number of existing IGMP multicast groups has exceeded the configured
■
limit on the number of joined multicast groups on the interface, the system will
delete some existing multicast groups automatically until the number of
multicast groups on the interface is conforming to the conferred limit.
Simulated joining in IGMP is implemented in the same way as in IGMP Snooping
except that IGMP establishes and maintains IGMP entries.
Enabling IGMP simulated joining in interface view
Table 366 Enable IGMP simulated joining in interface view
To do...
Enter system view
Enter VLAN interface view
Enable simulated joining
Configuring IGMP simulated joining in Ethernet port view
Table 367 Configure IGMP simulated joining on a port
Operation
Enter system view
Enter Ethernet port view
Configure IGMP simulated
joining
CAUTION:
Before configuring IGMP simulated joining, enable IGMP in interface view first.
■
Command
igmp group-policy
acl-number vlan vlan-id
Use the command...
system-view
interface Vlan-interface
interface-number
igmp host-join
group-address port
interface-list
Command
system-view
interface interface-type
interface-number
igmp host-join
group-address vlan vlan-id
Description
Optional
By default, the filter is not
■
configured, that is, any
multicast group is
permitted on the port.
The port must belong to
■
the IGMP-enabled VLAN
specified in the command.
Otherwise, the command
does not take effect.
Description
-
-
Optional
Disabled by default
Description
-
-
Optional
Simulated joining is disabled
by default.