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show msdp source



Display multicast sources learned from Multicast Source Discovery Protocol (MSDP).



Display standard MSDP source information for all routing instances.

instance instance-name

(Optional) Display information for the specified instance only.

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

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


(Optional) IP address and optional prefix length. Display information for the specified source address only.

Required Privilege Level


Output Fields

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

Table 1: show msdp source Output Fields

Field Name

Field Description

Source address

IP address of the source.


Length of the prefix for this IP address.


Discovery method for this multicast source:

  • Configured—Source-active limit explicitly configured for this source.

  • Dynamic—Source-active limit established when this source was discovered.


Source-active limit applied to this source.


Source-active threshold applied to this source.


Number of source-active messages received from this source exceeding the established maximum.

Sample Output

show msdp source

Release Information

Command introduced before Junos OS Release 7.4.