Srp Module Redundancy; Srp Module Behavior - Juniper SERVICE AVAILABILITY - CONFIGURATION GUIDE V 11.1.X Configuration Manual

redundancy revert

SRP Module Redundancy

This section covers general issues of SRP module redundancy. It does not cover NVS
cards or the behavior on systems running high availability features such as hitless
SRP switchover. For information about managing NVS in a router that contains two
SRP modules, see Managing Flash Cards on SRP Modules in the JUNOSe System Basics
Configuration Guide. For information about managing high availability in a router,
see "Managing Module Redundancy" on page 7.
The information in this section does not apply to the ERX310 router, which does not
support SRP module redundancy. For this reason, any references to synchronization
that may appear in command output or system messages do not apply to the ERX310
router.

SRP Module Behavior

The SRP module uses a 1:1 redundancy scheme. When two SRP modules are installed
in the router, one acts as a primary and the second as a redundant module. On
ERX7xx models, ERX14xx models, and the ERX310 router, both SRP modules share
a single SRP I/O module located in the rear of the chassis. On the E120 and E320
routers, both SRP modules share an SRP IOA located in the rear of the chassis.
Use to force the router to switch from the primary line module in the specified
slot or the primary SRP module to the spare line module or SRP module.
The command causes a single switchover. When you reboot, the router reverts
to the configured setting for this slot.
The redundancy force-switchover command overrides the redundancy lockout
command.
Example
host1#redundancy force-switchover 5
There is no no version.
See redundancy force-switchover.
Use to force the router to revert to the primary line module in the specified slot.
The router acts on this command immediately unless you specify a time or a
time and date that the action is to take place.
The command causes a single reversion. When you reboot, the router uses the
configured setting for this slot.
Example
host1#redundancy revert 4 23:00:00 5 September 200X
There is no no version.
See redundancy revert.
Chapter 2: Managing Module Redundancy
Line Module Redundancy Overview
11