display mld-snooping invalid-packet

Function

The display mld-snooping invalid-packet command displays statistics about invalid MLD messages received by the device.

Format

display mld-snooping invalid-packet { vlan [ vlan-id ] | vsi [ vsi-name ] } [ message-type { report | done | query | hello } ]

Parameters

Parameter	Description	Value
vlan vlan-id	Displays statistics about invalid MLD snooping messages received by the specified VLAN: If vlan-id is not specified, statistics about invalid MLD snooping messages received by all VLANs are displayed. If vlan-id is specified, statistics about invalid MLD snooping messages received by the specified VLAN are displayed.	The value is an integer ranging from 1 to 4094. It cannot be any reserved VLAN IDs configured using the vlan reserved command.
vsi vsi-name	Displays statistics about invalid MLD snooping messages received by the specified VSI: If vsi-name is not specified, statistics about invalid MLD snooping messages received by all VSIs are displayed. If vsi-name is specified, statistics about invalid MLD snooping messages received by the specified VSI are displayed.	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.
message-type	Displays statistics about the specified type of invalid message.	-
report	Displays statistics about invalid Report message.	-
done	Displays statistics about invalid Done messages.	-
query	Displays statistics about invalid Query message.	-
hello	Displays statistics about invalid Hello messages.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
l2mc	read

Usage Guidelines

Usage Scenario

If MLD snooping entries cannot be created on a multicast network, run the display mld snooping invalid-packet command to check whether this fault is caused by invalid MLD snooping messages received.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display statistics about invalid MLD snooping messages received by a device.

<HUAWEI> display mld-snooping invalid-packet vlan
           Statistics of invalid packets for VLAN 2
--------------------------------------------------------------------
MLD Snooping General invalid packet:
Fault Length             : 0           Invalid MLD Type         : 0           
Bad Checksum             : 0           Fault RouterAlert        : 0           
    
MLD Snooping Query invalid packet:
Invalid Multicast Source : 0           Invalid Multicast Group  : 0          

MLD Snooping Done invalid packet:
Invalid MLD Version      : 0           Invalid Multicast Group  : 0          

MLD Snooping Report invalid packet:
Invalid MLD Version      : 0           Invalid Multicast Group  : 0           
Invalid Multicast Source : 0          

PIM Hello invalid packet:
Invalid PIM Version      : 0           Bad Checksum             : 0           
Fault Length             : 0           Bad GenID Length         : 0           
Bad Holdtime Length      : 0           Bad LanPruneDelay Length : 0           
Bad DrPriority Length    : 0           --------------------------------------------------------------------

**Table 1** Description of the **display mld-snooping invalid-packet** command output
Item	Description
Statistics of invalid packets for VLAN	Statistics about invalid MLD snooping messages received by a VLAN.
MLD Snooping General invalid packet	Statistics about general invalid MLD snooping messages.
MLD Snooping Query invalid packet	Statistics about invalid MLD snooping Query messages.
MLD Snooping Done invalid packet	Statistics about invalid MLD snooping Done messages.
MLD Snooping Report invalid packet	Statistics about invalid MLD snooping Report messages.
Fault Length	Number of messages with invalid message length.
Fault RouterAlert	Number of messages with error Router-Alert fields.
Invalid MLD Type	Number of messages with invalid message types.
Invalid Multicast Group	Number of messages with invalid multicast group addresses.
Invalid Multicast Source	Number of messages with invalid multicast source addresses.
Invalid MLD Version	Number of messages with invalid MLD version information.
Invalid PIM Version	Number of messages with invalid PIM version information.
Bad Checksum	Number of messages with invalid checksum.
Bad GenID Length	Number of messages with invalid GenerationID length.
Bad Holdtime Length	Number of messages with invalid Holdtime length.
Bad LanPruneDelay Length	Number of messages with invalid LanPruneDelay length.
Bad DrPriority Length	Number of messages with invalid DrPriority length.
PIM Hello invalid packet	Statistics about invalid PIM Hello messages.