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Home Documentation Junos OS Junos CLI Reference CLI Reference S

Junos CLI Reference

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show mld snooping membership

date_range 19-Nov-23
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Syntax

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show mld snooping membership 
<brief | detail>
<interface logical-interface-name>

<vlan (vlan-id | vlan-name) >

Description

Display the multicast group membership information maintained by MLD snooping.

Options

none

Display the multicast group membership information for all VLANs on which MLD snooping is enabled.

brief | detail

(Optional) Display the specified level of output. The default is brief.

interface interface-name

(Optional) Display the multicast group membership information for the specified interface.

vlan (vlan-id | vlan-name)

(Optional) Display the multicast group membership for the specified VLAN.

Required Privilege Level

view

Output Fields

Table 1 lists the output fields for the show mld snooping membership command. Output fields are listed in the approximate order in which they appear.

Table 1: show mld snooping membership Output Fields

Field Name

Field Description

Level of Output

VLAN

Name of the VLAN.

All

Interfaces

Interfaces that are members of the listed multicast group.

brief

Tag

Numerical identifier of the VLAN.

detail

Router interfaces

List of information about multicast-router interfaces:

  • Name of the multicast-router interface.

  • static or dynamic—Whether the multicast-router interface has been statically configured or dynamically learned.

  • Uptime—For static interfaces, amount of time since the interface was configured as a multicast-router interface or since the interface last flapped. For dynamic interfaces, amount of time since the first query was received on the interface or since the interface last flapped.

  • timeout—Seconds remaining before a dynamic multicast-router interface times out.

detail

Group

IP multicast address of the multicast group.

The following information is provided for the multicast group:

  • Name of the interface belonging to the multicast group.

  • Timeout—Time (in seconds) left until a dynamically learned interface is removed from the multicast group if no MLD membership reports are received on the interface. This counter is reset to its maximum value when a membership report is received.

  • Flags—The lowest MLD version in use by a host that is a member of the group on the interface.

    If the flag static is included, the interface has been configured as static member of the multicast group.

  • Receiver count—Number of hosts on the interface that are members of the multicast group. This field appears only if immediate-leave is configured on the VLAN.

  • Last reporter—Last host to report membership for the multicast group.

  • Include source—Multicast source addresses from all MLDv2 membership reports received for the group on the interface.

detail

Sample Output

show mld snooping membership

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user@host> show mld snooping membership
VLAN: mld_vlan
    2001:db8:ff1e::2010
        Interfaces: ge-1/0/30.0
    2001:db8:ff1e::2011
        Interfaces: ge-1/0/30.0
    2001:db8:ff1e::2012
        Interfaces: ge-1/0/30.0
    2001:db8:ff1e::2013
        Interfaces: ge-1/0/30.0
    2001:db8:ff1e::2014
        Interfaces: ge-1/0/30.0

show mld snooping membership detail

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user@host> show mld snooping membership detail
VLAN: mld-vlan Tag: 100 (Index: 3)
    Router interfaces:
        ge-1/0/0.0 static Uptime: 00:57:13 
   Group: 2001:db8:ff1e::2010
     ge-1/0/30.0 Timeout: 180 Flags: <V2-hosts>
     Last reporter: 2001:db8:2020:1:1:3
       Include source: 2001:db8:1:1::2
VLAN: mld-vlan1 Tag: 200 (Index: 4)
    Router interfaces:
        ae200.0 dynamic Uptime: 00:14:24 timeout: 244
   Group: 2001:db8:ff1e::2010
     ge-12/0/31.0 Timeout: 224 Flags: <V1-hosts>
     Last reporter: 2001:db8:2020:1:1:4

Release Information

Command introduced in Junos OS Release 12.1.

Related Documentation

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