display igmp-snooping invalid-packet

Function

The display igmp-snooping invalid-packet command displays statistics about invalid IGMP Snooping packets.

Format

display igmp-snooping invalid-packet { vlan [ vlan-id ] | vsi [ vsi-name ] | bridge-domain [ bd-id ] } [ message-type { report | leave | query | hello } ]

Parameters

Parameter	Description	Value
vlan vlan-id	Displays statistics about invalid IGMP Snooping packets received from the specified VLAN: If vlan-id is not specified, statistics about invalid IGMP Snooping packets received from all VLANs are displayed. If vlan-id is specified, statistics about invalid IGMP Snooping packets received from the specified VLAN are displayed.	The value is an integer ranging from 1 to 4094.
vsi vsi-name	Displays statistics about invalid IGMP Snooping packets received from the specified VSI: If vsi-name is not specified, statistics about invalid IGMP Snooping packets received from all VSIs are displayed. If vsi-name is specified, statistics about invalid IGMP Snooping packets received from 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.
bridge-domain bd-id	Displays the ID of a bridge domain.	The bd-id value is an integer ranging from 1 to 16777215.
message-type	Displays statistics about the specified type of invalid packet.	-
report	Displays statistics about invalid Leave packets.	-
leave	Displays statistics about invalid Query packets.	-
query	Displays statistics about invalid Report packets.	-
hello	Displays statistics about invalid Hello packets.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
l2mc	read

Usage Guidelines

Usage Scenario

The display igmp-snooping invalid-packet command displays statistics and information about invalid IGMP snooping packets, helping to locate and rectify faults.

If IGMP Snooping entries cannot be created on a multicast network, you can run the display igmp-snooping invalid-packet command to check whether this fault is caused by invalid IGMP Snooping packets received. If the command output shows that the number of invalid IGMP Snooping packets is not 0, run the display igmp-snooping invalid-packet verbose command to check detailed information about the invalid IGMP Snooping packets for fault location.If the l2-multicast invalid-packet igmp-snooping max-count has been configured and the max-number value differs from the packet-number value in the display igmp-snooping invalid-packet verbose command, detailed information about invalid IGMP Snooping packets is displayed based on the smaller one of the two values.

Example

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

# Display statistics about invalid IGMP Snooping packets received by a device.

<HUAWEI> display igmp-snooping invalid-packet vlan
                                                                                
             Statistics of invalid packets for VLAN 1:                      
--------------------------------------------------------------------  
IGMP Snooping General invalid packet:
Fault Length             : 0           Invalid IGMP Type       : 0           
Bad Checksum             : 0           Fault RouterAlert       : 0  
         
IGMP Snooping Query invalid packet:
Invalid Multicast Source : 0          Invalid Multicast Group  : 0 

IGMP Snooping Leave invalid packet:
Invalid IGMP Version     : 0          Invalid Multicast Group  : 0 

IGMP Snooping Report invalid packet:
Invalid IGMP 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 igmp-snooping invalid-packet** command output
Item	Description
Statistics of invalid packets for VLAN 1	Statistics about invalid IGMP Snooping packets received by a VLAN.
IGMP Snooping General invalid packet	Statistics about general invalid IGMP Snooping packets.
IGMP Snooping Query invalid packet	Statistics about invalid IGMP Snooping Query packets.
IGMP Snooping Leave invalid packet	Statistics about invalid IGMP Snooping Leave packets.
IGMP Snooping Report invalid packet	Statistics about invalid IGMP Snooping Report packets.
Fault Length	Number of packets with invalid packet length.
Fault RouterAlert	Number of packets with error Router-Alert fields.
Invalid Multicast Group	Number of packets with invalid multicast group addresses.
Invalid Multicast Source	Number of packets with invalid multicast source addresses.
Invalid IGMP Version	Number of packets with invalid IGMP version information.
Invalid PIM Version	Number of packets with invalid PIM version information.
Invalid IGMP Type	Number of packets with invalid IGMP type.
Bad Checksum	Number of packets with invalid checksum.
Bad GenID Length	Number of packets with invalid Generation ID length.
Bad Holdtime Length	Number of packets with invalid Holdtime length.
Bad LanPruneDelay Length	Number of packets with invalid LanPruneDelay length.
Bad DrPriority Length	Number of packets with invalid DrPriority length.
PIM Hello invalid packet	Statistics about invalid PIM Hello packets.