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show multicast snooping route

date_range 19-Nov-23

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Syntax

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show multicast snooping route
<regexp>
<active>
<all>
<bridge-domain bridge-domain-name>
<brief >
<control>
<data>
<detail >
<extensive>
<group group>
<inactive>
<inet>
<inet6>
<instance instance-name>
<logical-system logical-system-name>
<mesh-group mesh-group-name>
<qualified-vlan vlan-id>
<source-prefix source-prefix>
<vlan vlan-id>

Description

Display the entries in the IP multicast snooping forwarding table. You can display some of this information with the show route table inet.1 command.

Options

none	Display standard information about all entries in the multicast snooping table for all virtual switches and all bridge domains.
active \| all \| inactive	(Optional) Display all active entries, all entries, or all inactive entries, respectively, in the multicast snooping table.
bridge-domain `bridge-domain`	(Optional) Display the entries for a particular bridge domain.
brief \| detail \| extensive	(Optional) Display the specified level of output.
control	(Optional) Display control route entries.
data	(Optional) Display data route entries.
group `group`	(Optional) Display the entries for a particular group.
inet	(Optional) Display IPv4 information.
inet6	(Optional) Display IPv6 information.
instance `instance-name`	(Optional) Display the entries for a multicast instance.
logical-system `logical-system-name`	(Optional) Display information about a particular logical system, or type ’all’.
mesh-group `mesh-group-name`	(Optional) Display the entries for a particular mesh group.
qualified-vlan `vlan-id`	(Optional) Display the entries for a particular qualified VLAN.
`regexp`	(Optional) Display information about the multicast forwarding table entries that match a UNIX-style regular expression.
source-prefix `source-prefix`	(Optional) Display the entries for a particular source prefix.
vlan `vlan-id`	(Optional) Display the entries for a particular VLAN.

Required Privilege Level

view

Output Fields

Table 1 describes the output fields for the show multicast snooping route command. Output fields are listed in the approximate order in which they appear.

Table 1: show multicast snooping route Output Fields
Field Name	Field Description	Level of Output
Nexthop Bulking	Displays whether next-hop bulk updating is ON or OFF (only for routing-instance type of virtual switch or vpls).	All levels
Family	IPv4 address family (INET) or IPv6 address family (INET6).	All levels
Group	Group address.	All levels
Source	Prefix and length of the source as it is in the multicast forwarding table. For (,G) entries, this field is set to "".	All levels
Routing-instance	Name of the routing instance to which this routing information applies. (Displayed when multicast is configured within a routing instance.)	All levels
Learning Domain	Name of the learning domain to which this routing information applies.	detail extensive
Statistics	Rate at which packets are being forwarded for this source and group entry (in Kbps and pps), and number of packets that have been forwarded to this prefix. Note: EX4600, EX4650, and the QFX5000 line of switches don’t provide packet rates for multicast transit traffic at Layer 2, and any values displayed in this field for `kBps` and `pps` are not valid. Up until and including the following Junos OS Release versions, the same is true of the packet count (`packets` value in this field is also not a valid count): Junos OS Releases 18.4R2-S2, 19.1R2-S1, 19.2R1, 19.3R2, and 19.4R1. Starting after those Junos OS releases, EX4600, EX4650, and QFX5000 switches count packets forwarded to this prefix and display valid statistics for the `packets` value only.	detail extensive
Next-hop ID	Next-hop identifier of the prefix. The identifier is returned by the router's Packet Forwarding Engine and is also displayed in the output of the `show multicast nexthops` command.	detail extensive
Route state	Whether the group is Active or Inactive.	extensive
Forwarding state	Whether the prefix is Pruned or Forwarding.	extensive
Cache lifetime/timeout	Number of seconds until the prefix is removed from the multicast forwarding table. A value of never indicates a permanent forwarding entry.	extensive

Sample Output

show multicast snooping route bridge-domain
show multicast snooping route instance vs
show multicast snooping route extensive
show multicast snooping route extensive group

show multicast snooping route bridge-domain

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 user@host>  show multicast snooping route bridge-domain br-dom-1 extensive 
Family: INET

Group: 232.1.1.1
    Source: 192.168.3.100/32
    Downstream interface list:
        ge-0/1/0.200
    Statistics: 0 kBps, 0 pps, 1 packets
    Next-hop ID: 1048577
    Route state: Active
    Forwarding state: Forwarding
    Cache lifetime/timeout: 240 seconds

show multicast snooping route instance vs

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 user@host>  show multicast snooping route instance vs 
Nexthop Bulking: ON

Family: INET

Group: 224.0.0.0
    Bridge-domain: vsid500

Group: 225.1.0.1
    Bridge-domain: vsid500
    Downstream interface list: vsid500
       ge-0/3/8.500 ge-1/1/9.500 ge1/2/5.500

show multicast snooping route extensive

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 user@host>  show multicast snooping route extensive inet6 group ff03::1 
Nexthop Bulking: OFF

Family: INET6
Group: ff03::1/128
    Source: ::
    Bridge-domain: BD-1
    Mesh-group: __all_ces__
    Downstream interface list: 
        ae0.1 -(562) 1048576 
    Statistics: 2697 kBps, 3875 pps, 758819039 packets
    Next-hop ID: 1048605
    Route state: Active
    Forwarding state: Forwarding

Group: ff03::1/128
    Source: 6666::2/128
    Bridge-domain: BD-1
    Mesh-group: __all_ces__
    Downstream interface list: 
        ae0.1 -(562) 1048576 
    Statistics: 0 kBps, 0 pps, 0 packets
    Next-hop ID: 1048605
    Route state: Active
    Forwarding state: Forwarding

show multicast snooping route extensive group

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 user@host>  show multicast snooping route extensive iinstance evpn-vxlan group 233.252.0.1/ 
Group: 233.252.0.1/32
    Source: *
    Vlan: VLAN-100
    Mesh-group: __all_ces__
        Downstream interface list:
        ge-0/0/3.0 -(662)
        evpn-core-nh -(131076)
    Statistics: 0 kBps, 0 pps, 0 packets
    Next-hop ID: 131070
    Route state: Active
    Forwarding state: Forwarding

Release Information

Command introduced in Junos OS Release 8.5.

Support for control, data, qualified-vlan and vlan options introduced in Junos OS Release 13.3 for EX Series switches.

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