Managing Stateful Srp Switchover; Pending State - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual

Pending State

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Copyright © 2010, Juniper Networks, Inc.
NOTE: While in the active and pending states, the CLI synchronize
command does not update configuration files; these files are updated by
the mirroring process.
During the active state:
If a switchover occurs while the router is in the active state, the standby SRP module
performs a warm restart (that is, stateful SRP switchover is in effect); the standby
SRP module uses the configuration located in NVS.
If an unsupported application is configured, the system transitions to the pending state.
If any other criterion changes (is no longer met), the system transitions to the disabled
state.
NOTE: Changes made in manual commit mode are maintained,
uncommitted, in the standby SRP memory until a trigger to commit occurs;
if a switchover occurs while in this mode, the standby SRP module uses
the configuration in memory.
The system transitions to the pending state if an unsupported application is configured.
When a transition to the pending state occurs, the system generates SNMP traps and
log messages.
How the router behaves depends on which HA state the application is in when it shifts
to a pending state:
From disabled state—The router remains in the disabled state.
From initializing state—The router completes the initializing state and transitions to
the pending state after initialization is complete.
Active State—The router transitions to the pending state.
The system remains in the pending state until the configuration of the unsupported
application is removed. However, even though it is in the pending state, the system
continues mirroring updates from the primary SRP module to the standby SRP module.
NOTE: You can use the show redundancy srp command to display the name
of any unsupported applications that are configured.
If a switchover occurs while the system is in the pending state, the system cold-restarts.
Monitoring the Redundancy Status on page 56
Monitoring the Redundancy Status of SRP Modules on page 63
Chapter 3: Managing Stateful SRP Switchover
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