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    PTX5000 Router High Availability Features

    High availability features include Routing Engine redundancy, graceful Routing Engine switchover (GRES), nonstop active routing (NSR), graceful restart for routing protocols, and unified in-service software upgrade (ISSU).

    Note: For more information about high availability feature requirements and limitations, see the Junos OS High Availability Library for Routing Devices.

    Table 1: High Availability Features Supported in PTX5000 Routers

    Router

    GRES

    NSR

    ISSU

    PTX5000

    12.1X48 or later

    12.1R4 or later

    13.2 or later

    Published: 2014-10-03