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show multicast usage

Syntax

show multicast usage
<brief | detail>
<inet | inet6>
<instance instance-name>
<logical-system (all | logical-system-name)>

Release Information

Command introduced before JUNOS Release 7.4.

Description

Display usage information about the 10 most active Distance Vector Multicast Routing Protocol (DVMRP) or Protocol Independent Multicast (PIM) groups.

Options

none — Display multicast usage information for all supported address families for all routing instances on all logical systems.

brief | detail — (Optional) Display the specified level of output.

inet | inet6 — (Optional) Display usage information for IPv4 or IPv6 family addresses, respectively.

instance instance-name — (Optional) Display information about the most active DVMRP or PIM groups for a specific multicast instance.

logical-system (all | logical-system-name) — (Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level

view

List of Sample Output

show multicast usage
show multicast usage brief
show multicast usage instance
show multicast usage detail

Output Fields

Table 48 describes the output fields for the show multicast usage command. Output fields are listed in the approximate order in which they appear.

Table 48: show multicast usage Output Fields

Field Name

Field Description

Instance

Name of the routing instance. (Displayed when multicast is configured within a routing instance.)

Group

Group address.

Sources

Number of sources.

Packets

Number of packets that have been forwarded to this prefix.

Bytes

Amount of memory used.

Prefix

IP address.

/len

Prefix length.

Groups

Number of multicast groups.

show multicast usage

user@host> show multicast usage 
Group           Sources Packets              Bytes
228.0.0.0       1       52847                4439148
239.1.1.1       2       13450                1125530


Prefix          /len Groups Packets              Bytes
10.255.14.144   /32  2      66254                5561304
10.255.70.15    /32  1      43                   3374...

show multicast usage brief

The output for the show multicast usage brief command is identical to that for the show multicast usage command. For sample output, see show multicast usage.

show multicast usage instance

user@host> show multicast usage instance VPN-A 
Group           Sources Packets              Bytes
224.2.127.254   1       5538                 509496
224.0.1.39      1       13                   624
224.0.1.40      1       13                   624

Prefix          /len Groups Packets              Bytes
192.168.195.34  /32  1      5538                 509496
10.255.14.30    /32  1      13                   624
10.255.245.91   /32  1      13                   624
...

show multicast usage detail

user@host> show multicast usage detail 
Group           Sources Packets              Bytes
228.0.0.0       1       53159                4465356
    Source: 10.255.14.144   /32 Packets: 53159 Bytes: 4465356
239.1.1.1       2       13450                1125530
    Source: 10.255.14.144   /32 Packets: 13407 Bytes: 1122156
    Source: 10.255.70.15    /32 Packets: 43 Bytes: 3374


Prefix          /len Groups Packets              Bytes
10.255.14.144   /32  2      66566                5587512
    Group: 228.0.0.0       Packets: 53159 Bytes: 4465356
    Group: 239.1.1.1       Packets: 13407 Bytes: 1122156
10.255.70.15    /32  1      43                   3374
    Group: 239.1.1.1       Packets: 43 Bytes: 3374
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