Stateful Srp Switchover States; Disabled State; Figure 3: High Availability States; Chapter 3 Managing Stateful Srp Switchover - Juniper SERVICE AVAILABILITY - CONFIGURATION GUIDE V 11.1.X Configuration Manual

Stateful SRP Switchover States

The SRP progresses through various high availability states. These states are illustrated
in Figure 3 on page 29.

Figure 3: High Availability States

Disabled State

The initial, default state for high availability mode is disabled. While in this state, the
router continues to use file system synchronization. If a switchover occurs while the
router is in this state, the standby SRP module performs a cold restart.
The router enters this state when you power up the router or when the router
warm-restarts from an SRP switchover.
After you enable high availability, the system must meet the following criteria before
it can enter the initializing state:
High availability mode is configured.
Active SRP hardware supports high availability.
Network core dump feature is disabled.
Running configuration allows high availability to operate (that is, no unsupported
applications are configured).
Standby SRP hardware supports high availability.
Standby SRP module is online and capable of mirroring.
Standby SRP module is running the same release.
Chapter 3: Managing Stateful SRP Switchover
Stateful SRP Switchover States
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