Router User Manual

ERX 8.0.x Hardware Guide
Part 3
Hardware Main
tenance, Replacement, and Troubleshooting
Procedures
Chapter 8 Maintaining ERX Routers
85
Required Tools and Items .......................................................... 85
Storing Modules and Components ................................................ 86
Cleaning the System................................................................ 86
Upgrading from Release 5.1.1 or Lower-Numbered Releases to Release 6.x.x or
Higher-Numbered Releases ........................................................ 87
Upgrading NVS Cards on SRP Modules ........................................... 87
Upgrading a System That Contains One SRP Module....................... 87
Upgrading a System That Contains Two SRP Modules...................... 88
Replacing an NVS Card............................................................. 89
Upgrading Memory on SRP Modules.............................................. 90
Displaying the Memory Installed ............................................. 91
Removing SODIMMs........................................................... 91
Adding New SODIMMs ........................................................92
Verifying the Upgrade .........................................................93
Replacing SFPs on I/O Modules.................................................... 93
Removing SFPs................................................................. 94
Installing SFPs..................................................................95
Verifying the Installation ...................................................... 97
Replacing Fan Trays ................................................................ 97
Removing the Fan Tray........................................................99
Installing the Fan Tray ........................................................ 99
Installing a Cable-Management Bracket on ERX-7xx Models ..................100
Chapter 9 Troubleshooting
103
Diagnosing Problems..............................................................103
Initialization Sequence .......................................................103
Troubleshooting Power Failures...................................................104
Understanding Status LEDs to Troubleshoot.....................................104
LED Identification.............................................................105
LED Activity ................................................................... 110
Redundancy Status ........................................................... 113
Monitoring Temperatures of Modules............................................ 113
Resetting Line Modules and SRP Modules....................................... 114
Double-Bit Errors on SRP Modules ............................................... 114
Detecting Double-Bit Errors .................................................. 114
Fixing Double-Bit Errors...................................................... 115
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