Taking An Sre Module Offline In A Switch With One Sre Module - Juniper EX6210 Complete Hardware Manual

Complete Hardware Guide for EX6210 Ethernet Switches

Taking an SRE Module Offline in a Switch With One SRE Module

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Determine whether the SRE module is the master or backup using one of these
1.
methods:
Look at the (master) LED on the SRE module faceplate. If the
MST
steady green, the SRE module is the master. If it is blinking green, the SRE module
is the backup.
Issue the following CLI command:
user@switch> show chassis routing-engine
Routing Engine status:
Slot 0: Current state Master
Election priority Master (default) ...
If the SRE module that you want to remove is the master, make it the backup module:
2.
user@switch> request chassis routing-engine master switch
From the new master SRE module, halt the other Routing Engine:
3.
user@switch> request system halt other-routing-engine
Wait a minute or two for the Routing Engine to halt before proceeding. If you are using
4.
a console connection, you will see a message when the backup SRE module is halted.
If the Routing Engine has not yet halted, the following step returns an error.
Take the SRE module offline:
5.
user@switch> request chassis cb offline slot slot-number
where is either
slot-number
(Optional) Confirm that the SRE module is offline by verifying the state of slots 4 or
6.
5:
user@switch> show chassis fpc
If the state field in the command output shows that the module is offline, then it is safe
to remove the SRE module.
To take the SRE module offline:
Connect to the console port on the SRE module.
1.
From the console, halt the SRE module:
2.
user@switch> request system halt
The SRE module is gracefully halted but not powered off. You will see the following
output (or something similar, depending on the hardware being shutdown) after
entering the command:
Halting re1
*** FINAL System shutdown message from user@switch***
System going down IMMEDIATELY
Shutdown NOW!
[pid 859]
user@switch> JWaiting (max 300 seconds) for system process `vnlru' to stop...done
Waiting (max 300 seconds) for system process `bufdaemon' to stop...done
Waiting (max 300 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining...2 2 2 1 1 0 0 0 0 done
syncing disks... All buffers synced.
or .
4 5
Copyright © 2014, Juniper Networks, Inc.
LED is lit
MST