3Com Switch 8800 Configuration Guide
Chapter 27 IGMP Configuration
27-8
Table 27-10
Limiting multicast groups an interface can access
Operation
Command
Limit the range of allowed
multicast groups on current
interface (in VLAN interface
view)
igmp group-policy
acl-number
[
1
|
2
|
port
{
interface_type interface_ num | interface_name
}
[
to
{
interface_type interface_ num |
interface_name
} ] ]
Remove the filter set on the
interface (in VLAN interface
view)
undo
igmp group-policy
[
port
{
interface_type
interface_ num | interface_name
} [
to
{
interface_type interface_ num |
interface_name
} ] ]
Limit the multicast groups that
the interface serves (in
Ethernet port view)
igmp group-policy
acl-number vlan
vlanid
Cancel the filter configured on
the interface (in Ethernet port
view)
undo igmp group-policy vlan
vlanid
Note:
Using the above two configuration methods to configure ports, you can obtain the same
result. You can select any one.
By default, no filter is configured, that is, all multicast groups are allowed on the
interface.
The
port
keyword only takes effect on VLAN interfaces. The port specified by the
port
keyword must belong to this VLAN interface. For the configuration in Ethernet port view,
the
port
must belong to the VLAN interface specified by the command. Besides, IGMP
is enabled on this VLAN interface. Otherwise, this command does not take effect.
27.2.11 Deleting IGMP Groups Joined on an Interface
This configuration task is to delete all IGMP groups joined on all interfaces or specific
interfaces of the router, or to delete the IGMP groups at the specific address or in the
specific network segment on the specific interfaces of the router.
Perform the following configuration in user view.
Table 27-11
Deleting IGMP groups joined on an interface
Operation
Command
Delete IGMP groups
joined on an interface
reset igmp group
{
all
|
interface
vlan-interface
interface-number
{
all
|
group-address
[
group-mask
] } }
After a group is deleted, it can be joined on an interface again.
