display mld-snooping statistics

Function

The display mld-snooping statistics command displays MLD snooping statistics.

Format

display mld-snooping statistics [ vlan vlan-id ]

Parameters

Parameter	Description	Value
vlan vlan-id	Displays MLD snooping statistics in a specified VLAN. If this parameter is not specified, the system displays MLD snooping statistics in all VLANs.	The value is an integer that ranges from 1 to 4094.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

After completing MLD snooping configuration, you can use the display mld-snooping statistics command to view MLD snooping statistics, including the number of MLD messages sent, number of MLD messages received, number of PIM Hello messages received in each VLAN, and number of Layer 2 events that have occurred in all VLANs. Layer 2 events include changes in interface status, changes in VLAN status, changes in VLAN member interfaces (interfaces join or leave VLANs), and MSTP events. When a multicast fault occurs, the MLD snooping statistics help you identify the cause of the fault.

Precautions

This command displays information only when global MLD snooping is enabled using the mld-snooping enable command.

Example

# Display MLD snooping statistics in all VLANs.

<HUAWEI> display mld-snooping statistics
MLD Snooping Events Counter
     Recv VLAN Up Event Times      1027
     Recv VLAN Down Event Times    5
     Recv VLAN Del Event Times     0
     Recv Port Up Event Times      12
     Recv Port Down Event Times    12
     Recv Port Del Event Times     0
     Recv Port Inc Event Times     3069
     Recv Port Exc Event Times     1023
     Recv MSTP Block Event Times   7
     Recv MSTP Forward Event Times 7
     Recv LINK Change Event Times  0
 MLD Snooping Packets Counter
   Statistics for VLAN 10
     Recv V1 Report 16
     Recv V2 Report 8768
     Recv V1 Query  0
     Recv V2 Query  2243
     Recv Done     215
     Recv Pim Hello 0
     Send Query(S=0) 0
     Send Query(S!=0)0
     Send General Query               0
     Send Group-Specific Query        0
     Send Group-Source-Specific Query 0

# Display MLD snooping in VLAN 20.

<HUAWEI> display mld-snooping statistics vlan 20
 MLD Snooping Packets Counter
   Statistics for VLAN 20
     Recv V1 Report  0
     Recv V2 Report  0
     Recv V1 Query   0
     Recv V2 Query   0
     Recv Done       0
     Recv Pim Hello  0
     Send Query(S=0) 0
     Send Query(S!=0)0
     Send General Query               0
     Send Group-Specific Query        0
     Send Group-Source-Specific Query 0

Choose Columns...

**Table 1** Description of the **display mld-snooping statistics** command output
Item	Description
MLD Snooping Events Counter	Statistics about MLD snooping events.
Recv VLAN Up Event Times	Number of VLAN Up events.
Recv VLAN Down Event Times	Number of VLAN Down events.
Recv VLAN Del Event Times	Number of VLAN deletion events.
Recv Port Up Event Times	Number of interface Up events.
Recv Port Down Event Times	Number of interface Down events.
Recv Port Del Event Times	Number of interface deletion events.
Recv Port Inc Event Times	Number of times interfaces join VLANs.
Recv Port Exc Event Times	Number of times interfaces leave VLANs.
Recv MSTP Block Event Times	Number of times static groups fail to be created on interfaces that are blocked by MSTP and cannot forward multicast packets.
Recv MSTP Forward Event Times	Number of times static groups are successfully created on interfaces that are in MSTP forwarding state and can forward multicast packets normally.
Recv LINK Change Event Times	Number of link change events.
MLD Snooping Packets Counter	Statistics about MLD snooping packets.
Statistics for VLAN 10	Packet statistics in VLAN 10.
Recv V1 Report	Number of MLDv1 Report messages received.
Recv V2 Report	Number of MLDv2 Report messages received.
Recv V1 Query	Number of MLDv1 Query messages received.
Recv V2 Query	Number of MLDv2 Query messages received.
Recv Done	Number of MLD Leave messages received.
Recv Pim Hello	Number of PIM Hello messages received.
Send Query(S=0)	Number of MLD Query messages sent with the source address of ::.
Send Query(S!=0)	Number of MLD Query messages with sent source addresses other than ::.
Send General Query	Number of General Query messages sent.
Send Group-Specific Query	Number of Group-Specific Query messages sent.
Send Group-Source-Specific Query	Number of Group-Source-Specific Query messages sent.