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Setting the 802.1p precedence for IGMP messages in a VLAN
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter VLAN view.
vlan vlan-id
N/A
3. Set the 802.1p precedence for
IGMP messages in the VLAN.
igmp-snooping dot1p-priority
priority-number
The default setting is 0.
Configuring IGMP snooping policies
Before you configure IGMP snooping policies, complete the following tasks:
• Enable IGMP snooping for the VLAN.
• Determine the ACL used as the multicast group filter.
• Determine the maximum number of multicast groups that a port can join.
Configuring a multicast group filter
When you configure a multicast group filter, follow these guidelines:
• This configuration is effective 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 is not effective on the
multicast group.
• You can configure a multicast group filter either for the current port in 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. Hosts on
this port can join any valid
multicast group.
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