display mld invalid-packet verbose

Function

The display mld invalid-packet verbose command displays details of invalid Multicast Listener Discovery (MLD) messages received by a device.

Format

display mld invalid-packet [ packet-number ] verbose

Parameters

Parameter	Description	Value
packet-number	Displays details of a specified number of invalid MLD messages recently received.	The value is an integer ranging from 1 to 100. By default, details of all the invalid MLD messages currently stored are displayed.

Parameter

Description

Value

packet-number

Displays details of a specified number of invalid MLD messages recently received.

The value is an integer ranging from 1 to 100. By default, details of all the invalid MLD messages currently stored are displayed.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
igmp	read

Usage Guidelines

Usage Scenario

If the command output contains statistics about invalid MLD messages, you need to run the display mld invalid-packet verbose command to view details of invalid MLD messages to locate the fault.

Run the display mld invalid-packet verbose command to view details of invalid MLD messages recently received. Currently, details of a maximum of 100 invalid MLD messages can be displayed

Example

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

# Display details of one invalid MLD message recently received in the public network instance.

<HUAWEI> display mld invalid-packet 1 verbose
       Detailed information of invalid packets
-----------------------------------------------------                           
Packet information (Index 1):
-----------------------------------------------------
Interface           :  GigabitEthernet0/1/6
Time                :  2010-6-9 11:03:51 UTC-08:00
Message Length      :  24
Invalid Type        :  Invalid Multicast Group
0000: 84 00 4c d7 00 00 00 00 11 17 00 00 00 00 00 00
0010: 00 00 00 00 00 01 00 01
-----------------------------------------------------

**Table 1** Description of the **display mld invalid-packet verbose** command output
Item	Description
Detailed information of invalid packets	Details of the invalid MLD message.
Packet information (Index 1)	Sequence number of the invalid MLD message (numbered in the opposite order that the message is received, for example, the index of the last received message is 1, the index of the last but one message is 2, and so on).
Interface	Interface receiving the invalid MLD message.
Time	Time when the invalid MLD message is received,in any of the following formats: YYYY-MM-DD HH:MM:SS. YYYY-MM-DD HH:MM:SS UTC±HH:MM DST. YYYY-MM-DD HH:MM:SS UTC±HH:MM. YYYY-MM-DD HH:MM:SS DST. UTC±HH:MM indicates that a time zone is configured through the clock timezone command,DST indicates that the daylight saving time is configured through clock daylight-saving-time command.
Message Length	Length of the invalid MLD message.
Invalid Type	Type of the invalid MLD message: Unwanted Source List. Zero Max Resp Code. Fault Length. Invalid Multicast Group. Bad Checksum. Invalid Multicast Source. Illegal Report Type.