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Upgrading the MX2008 Routing and Control Board (RCBs) in a Redundant
Host Subsystem
IN THIS SECTION
Taking the Host Subsystem Offline | 414
Removing the Backup RCB | 415
Installing the REMX2008-X8-64G RCB | 416
Verifying and Configuring the Upgraded RCB as the Master | 417
Verifying and Configuring the Upgraded RCB as the Backup | 417
A redundant host subsystem consists of a master RCB (RE0) and a backup RCB (RE1). To upgrade the host
subsystem to use the REMX2008-X8-64G, you must first uninstall the backup RCB and install the
REMX2008-X8-64G RCB, which then becomes the backup RCB. Configure this backup RCB as the master
RCB. Then replace the other RCB and configure it as the backup RCB.
NOTE:
Save the router configuration before upgrading the RCB.
Taking the Host Subsystem Offline
To take the host subsystem offline perform the following steps:
1. On the external management device connected to the RCB, issue the request vmhost power-off
other-routing-engine operational mode command to offline the backup RCB. The command shuts
down the RCB cleanly by preserving the state information.
user@host> request vmhost power-off other-routing-engine
Wait until a message appears on the console confirming that the operating system has halted.
2. Take the Control board offline by using the request chassis cb slot 0/1 offline operational mode
command. The command shuts down the RCB completely.
user@host> request chassis cb slot 1 offline
414
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