79
Task
Command
Display multicast group membership
information maintained by the IGMP proxy.
display
igmp
[
vpn-instance
vpn-instance-name
]
proxy
group
[
group-address
|
interface
interface-type
interface-number
] [
verbose
]
Display multicast routing entries maintained
by the IGMP proxy.
display
igmp
[
vpn-instance
vpn-instance-name
]
proxy
routing-table
[
source-address
[
mask
{
mask-length
|
mask
} ] |
group-address
[
mask
{
mask-length
|
mask
} ] ] *
[
verbose
]
Display IGMP SSM mappings.
display
igmp
[
vpn-instance
vpn-instance-name
]
ssm-mapping
group-address
Clear dynamic IGMP multicast group
entries.
reset igmp
[
vpn-instance
vpn-instance-name
]
group
{
all
|
interface
interface-type interface-number
{
all
|
group-address
[
mask
{
mask
|
mask-length
} ]
[
source-address
[
mask
{
mask
|
mask-length
} ] ] } }
IGMP configuration examples
Basic IGMP features configuration examples
Network requirements
As shown in
•
OSPF and PIM-DM run on the network.
•
VOD streams are sent to receiver hosts in multicast. Receiver hosts of different organizations
form stub networks N1 and N2. Host A and Host C are receiver hosts in N1 and N2,
respectively.
•
IGMPv2 runs between Router A and N1, and between the other two routers and N2. Router A
acts as the IGMP querier in N1. Router B acts as the IGMP querier in N2 because it has a lower
IP address.
Configure the routers to meet the following requirements:
•
The hosts in N1 can join only multicast group 224.1.1.1.
•
The hosts in N2 can join any multicast groups.
