display multicast-vlan

Function

The display multicast-vlan command displays information about multicast VLANs.

Format

display multicast-vlan vlan [ vlan-id ]

Parameters

Parameter	Description	Value
vlan [ vlan-id ]	Specifies the ID of a multicast VLAN. If vlan-id is specified, detailed information about the specified multicast VLAN and its user VLANs is displayed. If vlan-id is not specified, brief information about all the multicast VLANs is displayed.	The value is an integer that ranges from 1 to 4094.

Parameter

Description

Value

vlan [ vlan-id ]

Specifies the ID of a multicast VLAN.

If vlan-id is specified, detailed information about the specified multicast VLAN and its user VLANs is displayed.
If vlan-id is not specified, brief information about all the multicast VLANs is displayed.

The value is an integer that ranges from 1 to 4094.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The display multicast-vlan command displays configuration of multicast VLANs. You can run the display multicast-vlan command to check whether any user VLAN is bound to the multicast VLAN and whether IGMP snooping or MLD snooping is enabled in the multicast VLAN and user VLAN. This command can be used to locate faults when the multicast service fails.

Example

# Display information about all multicast VLANs and user VLANs.

<HUAWEI> display multicast-vlan vlan
  Total multicast vlan   2                                                       
  multicast-vlan     user-vlan number     snooping-state                         
  ----------------------------------------------------------------               
  5                  1                    IGMP Enable /MLD Disable
  7                  2                    IGMP Enable /MLD Disable

**Table 1** Description of the **display multicast-vlan vlan** command output
Item	Description
Total multicast vlan	Number of multicast VLANs.
multicast-vlan	ID of a multicast VLAN.
user-vlan number	Number of user VLANs bound to a multicast VLAN.
snooping-state	Whether IGMP snooping and MLD snooping is enabled in a multicast VLAN.

# Display information about multicast VLAN 7 and its user VLANs.

<HUAWEI> display multicast-vlan vlan 7
 Multicast-vlan         : 7
 User-vlan Number       : 2
 IGMP snooping state    : Enable
 MLD  snooping state    : Disable
 User-vlan              Snooping-state
 Prune-source-port state: Disable
 -------------------------------------
 8                      IGMP Enable /MLD Disable
 9                      IGMP Enable /MLD Disable

**Table 2** Description of the **display multicast-vlan vlan** *vlan-id* command output
Item	Description
Multicast-vlan	ID of a multicast VLAN.
User-vlan Number	Number of user VLANs bound to a multicast VLAN.
IGMP snooping state	Whether IGMP snooping is enabled in a multicast VLAN.
MLD snooping state	Whether MLD snooping is enabled in a multicast VLAN.
User-vlan	ID of a user VLAN.
Prune-source-port state	Whether permits Query messages received in a multicast VLAN to be sent back to from the upstream interface through user VLANs.
Snooping-state	Whether IGMP snooping and MLD snooping are enabled in a user VLAN.