Quickstart:1) Get the new IOS to the router2) Verify the integrity of the new IOS binary3) Change the boot statements to ensure that the correct IOS loads after restart4) Save configuration changes5) Reload the device and verify that the correct IOS ...

Step 1:Because a crash may be imminent can we enable a debug called “debug sanity”, basically this has the switch perform additional checks on its memory.  After you apply this please keep an eye on the CPU by doing show process cpu history.  If this...

Summary:The purpose of this document is to assist someone who has received a replacement supervisor and they need to restore their 6500 switch to full SSO redundancy.  (This procedure should also work for 7600 and 4500.)Procedure:You can add or repla...

Quickstart:6500/7600 has two crashinfo files per crash, one for RP, one for SP. Cisco TAC needs BOTH crashinfo files in order to best determine the root cause of the crash.To recover the crashinfo files log the output of:   RP:  more bootflash:crashi...

Problem Description:This document is about the most common cause of the CRIT Error LED on the ASR1000 platform. In practice this error is usually encountered when the router is being configured for the first time and the connections have been configu...