Juniper Networks E-Series - Manual (Page 110)

CHAPTER 9
Maintaining E-Series Routers 9-4
Upgrading a System That Contains Two SRP Modules
In a system that contains two SRP modules, you can upgrade the NVS
cards on the SRP modules without powering down the system.
Warning: Do not insert any metal object, such as a screwdriver, or place your hand
into an open slot or the backplane when the E-series router is on. Remove jewelry
(including rings, necklaces, and watches) before working on equipment that is
connected to power lines. These actions prevent electric shock and serious burns.
Caution: When handling modules, use an antistatic wrist strap connected to the
E-series router’s ESD grounding jack. This action helps to protect the module from
damage by electrostatic discharge.
To upgrade the NVS cards on the SRP modules in a system that contains
two SRP modules:
1
Connect the antistatic wrist strap to the ESD grounding jack on your
E-series router.
2 Halt the redundant SRP module.
host1#halt standby
3 Remove the redundant SRP module from the chassis.
4
Replace the NVS card on this SRP module (see Replacing an NVS
Card , later in this chapter).
5 Reinsert the SRP module into the chassis.
6 When this SRP module is available, synchronize the SRP modules.
host1#synchronize
7
When the SRP modules are synchronized, reboot the SRP module
that you upgraded.
host1#reload slot 7
8 When this SRP module is available, synchronize the SRP modules.
host1#synchronize
9 When the SRP modules are synchronized, force the redundant SRP
module to take over from the primary SRP module.
host1#srp switch
10
Immediately remove the former primary SRP module.
11
Repeat steps 4 – 8 for the former primary SRP module.