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• After receiving an IGMP report from a host, the access switch matches the multicast group address
and multicast source address carried in the report with the configured policies. If a match is found,
the host is allowed to join the multicast group. Otherwise, the join report is dropped by the access
switch.
• After receiving an IGMP leave message from a host, the access switch matches the multicast group
and source addresses with the policies. If a match is found, the host is allowed to leave the group.
Otherwise, the leave message is dropped by the access switch.
A multicast user control policy is functionally similar to a multicast group filter. A difference is that a
control policy can control both multicast joining and leaving of users based on authentication and
authorization, but a multicast group filter is configured on a port to control only multicast joining but not
leaving of users without authentication or authorization.
To configure a multicast user control policy:
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Create a user profile and
enter its view.
user-profile profile-name
N/A
3. Configure a multicast user
control policy.
igmp-snooping access-policy
acl-number
No policy is configured by default.
That is, a host can join or leave a
valid multicast group at any time.
4. Return to system view.
quit N/A
5. Enable the created user
profile.
user-profile profile-name enable Disabled by default.
For more information about the user-profile and user-profile enable commands, see Security Command
Reference.
Enabling the IGMP snooping host tracking function
With the IGMP snooping host tracking function, the switch can record the information of the member
hosts that are receiving multicast traffic, including the host IP address, running duration, and timeout time.
You can monitor and manage the member hosts according to the recorded information.
Enabling the IGMP snooping host tracking function globally
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter IGMP-snooping view.
igmp-snooping N/A
3. Enable the IGMP snooping
host tracking function
globally.
host-tracking Disabled by default
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