Step 1: Check the Routing Engine Core Files

Purpose

If you observe disruption to the Routing Engine kernel, check the /var/crash directory for any core files created around the time of the crash.

Action

To check the /var/crash directory, use the following JUNOS command-line interface (CLI) operational mode command:

user@host> file list detail /var/crash

Sample Output

user@host> file list detail /var/crash

total 1577912

drwxr-x---   2 root  wheel        512 Sep  9 11:59 ./

drwxr-xr-x  22 root  wheel        512 Oct 29  2001 ../

-rw-r--r--   1 root  wheel          2 Jul 20 01:11 bounds

-rw-r--r--   1 root  wheel    2166913 Jul 20 01:11 kernel.0

-rw-r--r--   1 root  wheel          5 Feb 15  2002 minfree

-rw-------   1 root  wheel  805306368 Jul 20 01:11 vmcore.0

What It Means

The sample output lists the contents of the /var/crash/ directory. Check the date and timestamp for any kernel core files created around the time of the crash. In the example above, two core files are listed: kernel.0 and vmcore.0.