Log Files

CERNR4 logs some events, such as failed calls, in the file: DECNET$LOG:NETEVENTS.LOG This file is renamed at midnight to decnet$log:netevents.old and the last 10 versions are kept.

This file is shared by all DECrouters at CERN. To find specific entries related to CERNR4, search the file for the string 'cernr4'.

TRACE

The commands to trace all X25 Level 3 traffic on CERNR4 are given below. Note that this will create a LOT OF DATA in files called trace.dat in your current directory. Running trace for 3-10 mins is usually long enough. The trace command may only be possible from UXCSB1. $ set proc/priv=oper $ trace/router start cernr4"cern tracex25"::x25l3line .... now let trace run for a few minutes .... $ trace/router stop $ trace/router analyze/out=trace.lis/data=ascii/wid=80 $ set proc/priv=nooper The result of the trace will be in the file trace.lis in your current directory. You can now scan this with the editor, for example.

A full desription of the X25router trace facility along with other diagnosis facilities is contained in the section 'Problem Solving Guide' of the X25router 2000 manual. There is a copy on the shelf behind the desk of Denise Heagerty (Bld 31-2-016).