4000 Router Series IP Multicast Configuration Guide

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• This configuration takes effect on the multicast groups that a port dynamically joins. If you configure

the port as a static member port for a multicast group, this configuration does not take effect on the

multicast group.

• You can configure a multicast filter either for the current port in proper interface view or globally for

all ports in IGMP-snooping view. If the configurations are made in both interface view and

IGMP-snooping view, the configuration made in interface view takes priority.

Configuring a multicast group filter globally

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter IGMP-snooping view.

igmp-snooping N/A

3. Configure a multicast group

filter globally.

group-policy acl-number [ vlan

vlan-list ]

By default, no multicast group filter

is configured. A host can join any

valid multicast group.

Configuring a multicast group filter on a port

Ste

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter Layer 2 Ethernet

interface view.

interface interface-type

interface-number

N/A

3. Configure a multicast group

filter on a port.

igmp-snooping group-policy

acl-number [ vlan vlan-list ]

By default, no multicast group filter

is configured on a port. The hosts

on this port can join any valid

multicast group.

Setting the maximum number of multicast groups on a port

You can set the maximum number of multicast groups on a port to regulate the port traffic.

When you set the maximum number of multicast groups on a port, follow these guidelines:

• This configuration takes effect on the multicast groups that a port dynamically joins. If you configure

the port as a static member port for a multicast group, this configuration does not take effect on the

multicast group.

• If the number of multicast groups on a port exceeds the limit, the system removes all the forwarding

entries related to that port from the IGMP snooping forwarding table. The receiver hosts attached to

that port can join multicast groups again before the number of multicast groups on the port reaches

the limit.

To set the maximum number of multicast groups on a port:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter Layer 2 Ethernet

interface view.

interface interface-type

interface-number

N/A

3. Set the maximum number of

multicast groups on a port.

igmp-snooping group-limit limit

[ vlan vlan-list ]

The default setting is

4294967295.