display mld group ssm-mapping

Function

The display mld group ssm-mapping command displays information about multicast group entries established with MLD SSM mapping.

Format

display mld group [ ipv6-group-address | interface interface-type interface-number ]^* ssm-mapping [ verbose ]

display mld group ssm-mapping [ interface interface-type interface-number ] entry-number

Parameters

Parameter	Description	Value
ipv6-group-address	Specifies an IPv6 multicast group address. If this parameter is not specified, the command displays information about all multicast group entries established with SSM mapping.	The value is a 32-digit hexadecimal number in X:X:X:X:X:X:X:X format. The value ranges from FF00:: to FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF.
interface interface-type interface-number	Displays information about the multicast group entries established with SSM mapping on a specified interface. If this parameter is not specified, the command displays information about multicast group entries established with SSM mapping on all interfaces.	-
verbose	Displays detailed information about multicast group entries established with SSM mapping. If this parameter is not specified, the command displays only the summary of multicast groups mapped by SSM mapping.	-
entry-number	Displays statistics about MLD multicast groups established with SSM mapping.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can use the display mld group ssm-mapping command to view information about multicast group entries that are established with SSM mapping. SSM mapping entries can be configured using the ssm-mapping (MLD view) command.

Example

# Display detailed information about all multicast group entries established with SSM mapping.

<HUAWEI> display mld group ssm-mapping verbose
Total entry on this router: 1
Interface group report information of VPN-Instance: public net
 Limited entry of this VPN-Instance: -
 Vlanif100(FE80::DD:84):
  Total entry on this interface: 1
  Limited entry on this interface: -
  Total 1 MLD SSM-Mapping Group reported
   Group: FF36::1
     Uptime: 00:00:13
     Expires: 00:04:07
     Last reporter: FE80::10
     Last-listener-query-counter: 0
     Last-listener-query-timer-expiry: off
     Group mode: exclude
     Version1-host-present-timer-expiry: 00:04:07

# Display detailed information about MLD multicast groups established with SSM mapping.

<HUAWEI> display mld group ssm-mapping entry-number
Interface group report information of VPN-Instance: public net
  Total 100 MLD SSM-Mapping Groups reported
 Vlanif100(FE80:2300::4):
  Total 100 MLD SSM-Mapping Groups reported

**Table 1** Description of the **display mld group ssm-mapping** command output
Item	Description
Interface group report information of VPN-Instance	VPN instance to which MLD groups on an interface belong. public net indicates the public network instance.
Total entry on this router	Number of multicast group entries established with SSM mapping on the switch.
Limited entry of this VPN-Instance	Maximum number of multicast group entries that can be generated in the VPN instance.
Vlanif100(FE80::DD:84)	Interface type and interface number (IPv6 link-local address).
Total entry on this interface	Number of multicast group entries established with SSM mapping on the interface.
Limited entry on this interface	Maximum number of multicast group entries that can be generated on the interface.
Total 1 MLD SSM-Mapping Group reported	Total number of SSM mapping groups is 1.
Group	Multicast group address.
Uptime	Time since a multicast group is discovered. The time format is as follows: If the time is shorter than or equal to 24 hours, the format is hours:minutes:seconds. If the time is longer than 24 hours but shorter than or equal to one week, the format is days:hours. If the time is longer than one week, the format is weeks:days.
Expires	Timeout period of a group. The time format is as follows: If the time is shorter than or equal to 24 hours, the format is hours:minutes:seconds. If the time is longer than 24 hours but shorter than or equal to one week, the format is days:hours. If the time is longer than one week, the format is weeks:days.
Last reporter	Link-local address of the last host that sends a Multicast Listener Report message.
Last-listener-query-counter	Number of times for sending Multicast Address Specific Query messages or Multicast Address and Source Specific Query messages.
Last-listener-query-timer-expiry	Interval for sending Multicast Address Specific Query messages or Multicast Address and Source Specific Query messages.
Group mode	Filter mode of the multicast group, that is, include or exclude.
Version1-host-present-timer-expiry	Timeout period of an MLDv1 host.