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Home Documentation Junos OS Junos CLI Reference CLI Reference S

Junos CLI Reference

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show mld group

date_range 17-Dec-24
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Syntax

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show mld group 
<brief | detail>
<group-name>
<logical-system (all | logical-system-name)>

Description

Display information about Multicast Listener Discovery (MLD) group membership.

(ACX7100 Routers as CPE) Displays monitoring information for multicast interfaces on customer premises equipments (CPE) with user-plane configuration.

Options

none

Display standard information about all MLD groups.

brief | detail

(Optional) Display the specified level of output.

group-name

(Optional) Display MLD information about the specified group.

logical-system (all | logical-system-name)

(Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level

view

Output Fields

Table 1 describes the output fields for the show mld group command. Output fields are listed in the approximate order in which they appear.

Table 1: show mld group Output Fields

Field Name

Field Description

Level of Output

Interface

Name of the interface that received the MLD membership report; local means that the local router joined the group itself.

All levels

Group

Group address.

All levels

Source

Source address.

All levels

Group Mode

Mode the SSM group is operating in: Include or Exclude.

All levels

Last reported by

Address of the host that last reported membership in this group.

All levels

Source timeout

Time remaining until the group traffic is no longer forwarded. The timer is refreshed when a listener in include mode sends a report. A group in exclude mode or configured as a static group displays a zero timer.

detail

Timeout

Time remaining until the group membership is removed.

brief none

Group timeout

Time remaining until a group in exclude mode moves to include mode. The timer is refreshed when a listener in exclude mode sends a report. A group in include mode or configured as a static group displays a zero timer.

detail

Type

Type of group membership:

  • Dynamic—Host reported the membership.

  • Static—Membership is configured.

All levels

Sample Output

show mld group (Include Mode)

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user@host> show mld group 
Interface: fe-0/1/2.0
    Group: ff02::1:ff05:1a67
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     245 Type: Dynamic
    Group: ff02::1:ffa8:c35e
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     241 Type: Dynamic
    Group: ff02::2:43e:d7f6
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     244 Type: Dynamic
    Group: ff05::2
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     244 Type: Dynamic
Interface: local
    Group: ff02::2
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::16
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic

show mld group (Exclude Mode)

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user@host> show mld group 
Interface: ge-0/2/2.0
Interface: ge-0/2/0.0
    Group: ff02::6
        Source: ::
        Last reported by: fe80::21f:12ff:feb6:4b3a
        Timeout:     245 Type: Dynamic
    Group: ff02::16
        Source: ::
        Last reported by: fe80::21f:12ff:feb6:4b3a
        Timeout:      28 Type: Dynamic
Interface: local
    Group: ff02::2
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::16
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic

show mld group brief

The output for the show mld group brief command is identical to that for the show mld group command. For sample output, see show mld group (Include Mode) show mld group (Exclude Mode).

show mld group detail (Include Mode)

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user@host> show mld group detail 
Interface: fe-0/1/2.0
    Group: ff02::1:ff05:1a67
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     224 Type: Dynamic
    Group: ff02::1:ffa8:c35e
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     220 Type: Dynamic
    Group: ff02::2:43e:d7f6
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     223 Type: Dynamic
    Group: ff05::2
        Group mode: Include
        Source: ::
        Last reported by: fe80::2e0:81ff:fe05:1a67
        Timeout:     223 Type: Dynamic
Interface: so-1/0/1.0
    Group: ff02::2
        Group mode: Include
        Source: ::
        Last reported by: fe80::280:42ff:fe15:f445
        Timeout:     258 Type: Dynamic
Interface: local
    Group: ff02::2
        Group mode: Include
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::16
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic

show mld group detail (Exclude Mode)

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user@host> show mld group detail 
Interface: ge-0/2/2.0
Interface: ge-0/2/0.0
    Group: ff02::6
        Group mode: Exclude
        Source: ::
        Source timeout: 0
        Last reported by: fe80::21f:12ff:feb6:4b3a
        Group timeout:     226 Type: Dynamic
    Group: ff02::16
        Group mode: Exclude
        Source: ::
        Source timeout: 0
        Last reported by: fe80::21f:12ff:feb6:4b3a
        Group timeout:     246 Type: Dynamic
Interface: local
    Group: ff02::2
        Group mode: Exclude
        Source: ::
        Source timeout: 0
        Last reported by: Local
        Group timeout:       0 Type: Dynamic
    Group: ff02::16
        Group mode: Exclude
        Source: ::
        Source timeout: 0
        Last reported by: Local
        Group timeout:       0 Type: Dynamicuser@up1> show mld group
Interface: pp0.3221225483, Groups: 2
    Group: ff1e::1
        Group mode: Exclude
        Source: ::
        Last reported by: fe80::e
        Timeout:     243 Type: Dynamic
    Group: ff1e::2
        Group mode: Exclude
        Source: ::
        Last reported by: fe80::e
        Timeout:     249 Type: Dynamic
Interface: demux0.2147483653, Groups: 2
    Group: ff1e::1
        Group mode: Exclude
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: ROUTE
    Group: ff1e::2
        Group mode: Exclude
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: ROUTE
Interface: local, Groups: 4
    Group: ff02::2
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::16
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::1:2
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff05::1:3
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic

show mld group (User Plane output for ACX7100)

Displays the following output in the user-plane for customer premise equipment (CPE).

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user@UP1> show mld group
Interface: pp0.3221225483, Groups: 2
    Group: ff1e::1
        Group mode: Exclude
        Source: ::
        Last reported by: fe80::e
        Timeout:     243 Type: Dynamic
    Group: ff1e::2
        Group mode: Exclude
        Source: ::
        Last reported by: fe80::e
        Timeout:     249 Type: Dynamic
Interface: demux0.2147483653, Groups: 2
    Group: ff1e::1
        Group mode: Exclude
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: ROUTE
    Group: ff1e::2
        Group mode: Exclude
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: ROUTE
Interface: local, Groups: 4
    Group: ff02::2
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::16
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff02::1:2
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: ff05::1:3
        Source: ::
        Last reported by: Local
        Timeout:       0 Type: Dynamic

Release Information

Command introduced before Junos OS Release 7.4.

Command updated in Junos OS Release 24.4R1 to include multicast support monitoring for ACX7100 router interfaces.

Related Documentation

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