The multicast-instance command configures a VLAN/VSI as the multicast instance of a Layer 2 multicast instance.
The undo multicast-instance command deletes the VLAN/VSI that is configured as the multicast instance of a Layer 2 multicast instance.
By default, there is no a VLAN/VSI as the multicast instance of a Layer 2 multicast instance.
| Parameter | Description | Value |
|---|---|---|
| vsi vsi-name |
Specifies the name of a VSI to be configured as the multicast instance. |
The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string. |
| vlan vlan-id |
Specifies the ID of a VLAN to be configured as the multicast instance. |
The value is an integer ranging from 1 to 4094. |
Usage Scenario
After a Layer 2 multicast instance is configured on a Layer 2 device, run the multicast-instance command to specify a multicast instance, so that the upstream device can determine the VLAN/VSI used for forwarding multicast data flows to the downstream Layer 2 device.
A multicast instance can be a VLAN or VSI.Prerequisites
IGMP snooping has been enabled globally using the igmp-snooping enable command, and a Layer 2 multicast instance has been created using the l2-multicast instance command.
Precautions
A sub-VLAN cannot be configured as the multicast instance of a Layer 2 multicast instance.
<HUAWEI> system-view [~HUAWEI] igmp-snooping enable [*HUAWEI] mpls [*HUAWEI-mpls] quit [*HUAWEI] mpls l2vpn [*HUAWEI-l2vpn] quit [*HUAWEI] vsi vsi1 [*HUAWEI-vsi-vsi1] pwsignal ldp [*HUAWEI-vsi-vsi1-ldp] vsi-id 1 [*HUAWEI-vsi-vsi1-ldp] quit [*HUAWEI-vsi-vsi1] igmp-snooping enable [*HUAWEI-vsi-vsi1] quit [*HUAWEI] l2-multicast instance 1 [*HUAWEI-l2-minst1] multicast-instance vsi vsi1
<HUAWEI> system-view [~HUAWEI] igmp-snooping enable [*HUAWEI] vlan 10 [*HUAWEI-vlan10] igmp-snooping enable [*HUAWEI-vlan10] quit [*HUAWEI] l2-multicast instance 1 [*HUAWEI-l2-minst1] multicast-instance vlan 10