Table 122: Checklist for Monitoring the SCB (continued)
Command or ActionMonitor SCB Tasks
Ensure that the SCB is securely seated. Tighten
the captive screws at the top and bottom of
the SCB card carrier.
1. Check the SCB Connection on page 499
Remove the failed SCB and replace it with one
that you know works.
2. Perform an SCB Swap Test on page 499
“Obtain SCB Hardware Information” on page 500
show chassis hardware1. Display the SCB Hardware Information
on page 500
Look on the front of the SCB board near the
faceplate.
2. Locate the SCB Serial Number ID Label
on page 500
show chassis firmware3. Display the SCB Firmware Version on
page 501
See “Return the Failed Component” on
page 116.
“Return the SCB” on page 501
Related
Documentation
SCB Overview on page 492•
SCB Overview
Inspect the SCB, the control board for the Packet Forwarding Engine, to ensure that it
provides route lookups, system component monitoring, exception and control packet
transfer, and FPC operation and reset control.
The SCB is the control board for the M40 router Packet Forwarding Engine (see Figure
258 on page 492).
Figure 258: SCB Component
Copyright © 2012, Juniper Networks, Inc.492
M Series and T Series Routers Monitoring and Troubleshooting Guide