Internet Group Management Protocol (IGMP) 185
Perform the following configuration in the corresponding view.
By default, a router joins no multicast group.
Limiting Multicast Groups An Interface Can Access
A multicast router learns whether there are members of a multicast group on the
network via the received IGMP membership message. A filter can be set on an
interface so as to limit the range of allowed multicast groups.
Perform the following configuration in Interface view.
By default, no filter is configured, that is, all multicast groups are allowed on the
interface.
Configuring the Interval to Send IGMP Query Message
Multicast routers send IGMP query messages to discover which multicast groups
are present on attached networks. Multicast routers send query messages
periodically to refresh their knowledge of members present on their networks.
Tab le 197 Configuring a router to join specified multicast group
Operation Command
Configure a router to join
specified multicast group
(VLAN Interface View)
igmp host-join
group_address
port {
interface_type interface_ num
|
interface_name
}
[
to {
interface_type interface_ num
|
interface_name
} ]
Quit from specified
multicast group (VLAN
Interface View)
undo igmp host-join
group-address
port {
interface_type interface_ num
|
interface_name
}
[
to {
interface_type interface_ num
|
interface_name
} ]
Configure a router to join
specified multicast group
(Ethernet Port View)
igmp host-join
group-address
vlan
vlanid
Quit from specified
multicast group (Ethernet
Port View)
undo igmp host-join
group-address
vlan
vlanid
Tab le 198 Limiting multicast groups an interface can access
Operation Command
Limit the range of allowed
multicast groups on
current interface (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 (Interface
View)
undo igmp group-policy [ port
{
interface_type
interface_ num | interface_name
} [ to {
interface_type interface_ num | interface_name
} ] ]
Limit the range of allowed
multicast groups on
current interface (Ethernet
port view)
igmp group-policy acl-number vlan vlanid
Remove the filter set on
the interface (Ethernet
port view)
undo igmp group-policy vlan vlanid
To Next Page