Configuring An Igmp Snooping Policy; Configuration Prerequisites; Configuring A Multicast Group Filter - HP A5500 SI Switch Series Configuration Manual

Configuring an IGMP snooping policy

Configuration prerequisites

Before you configure an IGMP snooping policy, complete the following tasks:
Enable IGMP snooping in the VLAN
•
Determine the ACL rules for multicast group filtering
•
Determine the maximum number of multicast groups that can pass the ports
•
Determine the 802.1p precedence for IGMP messages
•

Configuring a multicast group filter

On an IGMP snooping–enabled switch, a multicast group filter enables the service provider to define
restrictions on multicast programs available to different users.
In an application, when a user requests a multicast program, the user's host initiates an IGMP report.
After receiving this report message, the switch compares the report against the configured ACL rule. If
the port that received the report can join this multicast group, the switch adds an entry for this port in the
IGMP snooping forwarding table. Otherwise, the switch drops this report message. Any multicast data
that has failed the ACL check is not sent to this port. In this way, the service provider can control the
VOD programs provided for multicast users.
Configuring a multicast group filter globally
Follow these steps to configure a multicast group filter globally:
To do...
Enter system view
Enter IGMP snooping view
Configure a multicast group filter
Configuring a multicast group filter on a port or a group of ports
Follow these steps to configure a multicast group filter on a port or a group of ports:
To do...
Enter system view
Enter Ethernet interface view,
Layer 2 aggregate interface view,
or port group view
Use the command...
system-view
igmp-snooping
group-policy acl-number [ vlan
vlan-list ]
Use the command...
system-view
interface interface-type interface-
number
port-group manual port-group-
name
30
Remarks
—
—
Required
By default, no group filter is
globally configured. That is, the
hosts in a VLAN can join any
valid multicast group.
Remarks
—
Required
Use either approach