technology in networking, development, and support

Posts in the ‘Educational’ Category

Cisco Router – How to view the crash file

 When working with Cisco it can be helpful or sometimes necessary to have a crash file to send to Cisco.
What is a crashfile?
The crashinfo file contains this information:

     limited error message (log) and command history
     description of the image running at the time of the crash     show alignment
      malloc and free traces
      process level stack …

Cisco Router – Random Cell Delineation Messages cause IMA connections to bounce

 For new IMA installs, cell delineation can initially appear to be a telco issue.  However, Cisco has identified a bug that can cause the ATM interfaces to drop and show cell delineation messages in the log.  Regardless of the telco line status.
 
The fix for this is to upgrade to 12.4(20)T2 or higher.  If …

Cisco Router – Service Module showing Start interval out of range

Running into this error would suggest an equipment failure:Router1#sho ser ser0Interface Serial0Module type is T1/fractionalHardware revision is 1.5, Software revision is 20050811-0.3,Image checksum is 0×80ACD1B3, Protocol revision is 0.1Receiver has no alarms.Framing is ESF, Line Code is B8ZS, Current clock source is line,Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.Last module …

Quick Fix: This page contains both secure and nonsecure items.

For Internet Explorer users this error is fairly common since most websites will at some point include a mixture of secure and nonsecure items all on the same page.

The error message:  This page contains both secure and nonsecure items.  Do you want to display the nonsecure items, can be easily disabled by going to your …