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show interfaces load-balancing (Aggregated Multiservices)



Display information about the aggregated multiservices interface (AMS) as well as its individual member interfaces and the status of the replication state.



Display standard information about status of all AMS interfaces.


(Optional) Display detailed status of all AMS interfaces.


(Optional) Name of the aggregated multiservices interface (ams). If this is omitted, then the information for all the aggregated multiservices interfaces, including those used in control plane redundancy and high availability (HA) for service applications, is displayed.

Required Privilege Level


Output Fields

Table 1 lists the output fields for the show interfaces load-balancing (aggregated multiservices interfaces) command. Output fields are listed in the approximate order in which they appear.

Table 1: Aggregated Multiservices show interfaces load-balancing Output Fields

Field Name

Field Description

Level of Output


Name of the aggregated multiservices (AMS) interface.

detail none


Status of AMS interfaces:

  • Coming Up—Interface is becoming operational.

  • Members Seen—Member interfaces (mams) are available.

  • Up—Interface is configured and operational.

  • Wait for Members—Member interfaces (mams) are not available.

  • Wait Timer—Interface is waiting for member interfaces (mams) to come online.

detail none

Last change

Time (in hh:mm:ss [hours:minutes:seconds] format) when the state last changed.

detail none


Number of member interfaces (mams-).

none specified

Member count

Number of member PICs (mams) that are part of the aggregated interface.

detail none

HA Model

High availability (HA) model supported on the interface.

  • Many-to-One—The preferred backup Multiservices PIC, in hot standby mode, backs up one or more (N) active Multiservices PICs.

  • One-to-One—–The preferred backup Multiservices PIC, in hot standby mode, backs up only one active Multiservices PIC.


    One-to-One is not supported on MX-SPC3 cards.

detail none


Information about the member interfaces:

  • Interface—Name of the member interface.

  • Weight—Not applicable for the current release.

  • State—State of the member interface (mams-).

    • Active—Member is an active member.

    • Backup—Member is a backup.

    • Discard—Member has not yet rejoined the ams interface after failure.

    • Down—Member has not yet powered on.

    • Inactive—Member has failed to rejoin the ams interface within the configured rejoin-timeout.

    • Invalid—Multiservices PIC corresponding to the member interface has been configured but is not physically present in the chassis.



Synchronization (sync) status of the control plane redundancy. The sync state is displayed only when the ams interface is Up.

  • Interface—Name of the member interface.

  • Status—Synchronization status of the member interfaces.

    • In progress—The active member is currently synchronizing its state information with the backup member.

    • In sync—The active member has finished synchronizing its state information with the backup and the backup is ready to take over if the active member fails.

    • NA (Not applicable)—The backup member is not yet ready to synchronize with the active (primary) member. This condition may occur if the backup is still powered off or still booting.

    • Unknown—The daemons are still initializing and the state information is unavailable.


Sample Output

show interfaces load-balancing

show interfaces load-balancing detail

show interfaces load-balancing detail (Specific Interface)

Release Information

Command introduced in Junos OS Release 11.4.

interface-name option added in Junos OS Release 16.1.

Support added in Junos OS Release 19.3R2 for Next Gen Services on MX Series routers MX240, MX480 and MX960 with the MX-SPC3 services card.