Network Router User Manual

We recommend you run JUNOS Release 7.0 or later on the M10i router to support
graceful switchover.
NOTE: Router performance might change if the standby Routing Engine's
configuration differs from the former master's configuration. For the most predictable
performance, configure the two Routing Engines identically, except for parameters
unique to a Routing Engine, such as the hostname defined at the [edit system]
hierarchy level and the management interface (fxp0 or equivalent) defined at the
[edit interfaces] hierarchy level.
To configure Routing Engine-specific parameters and still use the same configuration
on both Routing Engines, include the appropriate configuration statements under
the re0 and re1 statements at the [edit groups] hierarchy level and use the apply-groups
statement. For instructions, see the JUNOS System Basics Configuration Guide.
4. On the console or other management device connected to the Routing Engine,
enter CLI operational mode and issue the following command to shut down the
router software cleanly and preserve Routing Engine state information.
user@host> request system halt
NOTE: Wait until a message appears on the console confirming that the operating
system has halted.
For more information about the command, see the JUNOS System Basics and
Services Command Reference.
NOTE: The router might continue forwarding traffic for a few minutes after the
request system halt command has been issued.
5. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to one of the ESD points on the chassis. Make sure the router
is attached to a proper earth ground. For more information about ESD, see
“Preventing Electrostatic Discharge Damage” on page 140.
6. Loosen the thumbscrews located at each end of the Routing Engine faceplate,
using a Phillips screwdriver if necessary.
7. Grasp the handle and slide the unit about halfway out of the chassis.
CAUTION: Slide the Routing Engine straight out of the chassis. Damage can result if
it gets lodged because of uneven movement.
122 ■ Replacing Routing Engine Components
M10i Internet Router Hardware Guide