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    high-availability-options (Aggregated Multiservices)


    high-availability-options {many-to-one {preferred-backup preferred-backup;}}

    Hierarchy Level

    [edit interfaces interface-name load-balancing-options]

    Release Information

    Statement introduced in Junos OS Mobility Release 11.2W.


    Configure the high availability options for the aggregated multiservices (AMS) interface. This configuration is mandatory for mobile control plane redundancy. For service applications, if only the load-balancing feature is being used, then this configuration is optional.

    • For one-to-one (1:1) mobile control plane redundancy, the preferred backup multiservices PIC, in hot standby mode, backs up one multiservices PIC.
    • For many-to-one (N:1) high availability support for service applications (application-level gateway [ALG], Network Address Translation [NAT], and stateful firewall), the preferred backup multiservices PIC, in hot standby mode, backs up one or more (N) active multiservices PICs.

    Note: In both cases, if one of the active multiservices PICs goes down, then the backup replaces it as the active multiservices PIC. When the failed PIC comes back up, it becomes the new backup. This is called floating backup.

    The remaining statements are explained separately.

    Required Privilege Level

    interface—To view this statement in the configuration.

    interface-control—To add this statement to the configuration.

    Published: 2011-11-22