Figure 72: Removing an M120 Routing Engine
Installing an M120 Routing Engine
To install a Routing Engine into a CB (see Figure 73 on page 149):
1.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to one of the ESD points on the chassis.
2.
Ensure that the ejector handles are not in the locked position. If necessary, press the
red tabs and flip the ejector handles outward.
3.
Place one hand underneath the Routing Engine to support it. With the other hand,
grasp one of the ejector handles on the faceplate.
4.
Carefully align the sides of the Routing Engine with the guides inside the opening on
the CB.
5.
Slide the Routing Engine into the CB until you feel resistance, then press the Routing
Engine's faceplate until it engages the connectors.
6.
Press both the ejector handles inward to seat the Routing Engine.
The Routing Engine might require several minutes to boot.
7.
After the Routing Engine boots, verify that it is installed correctly by checking the
RE0
and
RE1
LEDs on the craft interface. If the router is operational and the Routing Engine
is functioning properly, the green
OK
LED lights steadily. If the red
FAIL
LED lights
steadily instead, remove and install the Routing Engine again. If the red
FAIL
LED still
lights steadily, the Routing Engine is not functioning properly. Contact your customer
support representative.
To check the status of the Routing Engine, use the CLI command:
user@host>
show chassis routing-engine
Routing Engine status: Slot 0: Current state
Master ...
For more information about using the CLI, see the Junos OS documentation.
Copyright © 2010, Juniper Networks, Inc.
148
M120 Multiservice Edge Router Hardware Guide
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