Juniper E Series Hardware Manual page 204

E-series Hardware Guide
186 !
Upgrading Systems That Are Operating with Two SRP Modules
4. Specify that the E-series router should use the new software release when it
reboots. For example:
host1(config)#boot system erx_x-y-z.rel
5. Synchronize the NVS file system of the redundant module with that of the
primary module.
host1#synchronize
The redundant SRP module will automatically reboot, because the software
release that it is configured to run differs from the software release it is running.
6. Wait for the redundant SRP module to boot, initialize, and reach the standby
state.
When the module is in standby state, the REDUNDANT LED is on and the
ONLINE LED is off. If you issue the show version command, the state field for
the module should be "standby".
After any type of reboot, the primary and redundant SRP module NVS file
systems will be unsynchronized again.
7. Synchronize the NVS file system of the redundant module with that of the
primary module.
host1#synchronize
8. Switch from the primary SRP module to the redundant SRP module.
host1#srp switch
The redundant SRP module assumes the primary role. The former primary SRP
module reboots and assumes the redundant role.
9. Reenable autosynchronization.
host1(config)#no disable-autosync