Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!cs.utexas.edu!asuvax!ncar!csn!boulder!daemon
From: robel2@mythos.ucs.indiana.edu (Allen Robel)
Newsgroups: comp.dcom.sys.cisco
Subject: Re: delay of an interface (another fix to Sniffer IGRP)
Message-ID: <33690@boulder.Colorado.EDU>
Date: 27 Mar 91 18:04:02 GMT
Sender: daemon@boulder.Colorado.EDU
Lines: 47

>I have a simple igrp spreadsheet for Microsoft Excel if you'd like to
>play with the Kn, occupancy, reliability and delay.  Actually, it's
>curious to see the results when using values other than 1 for some of
>the Ks...


Pierre Fortin correctly points out that the Ks can have other 

values besides 0 and 1.  This is something I didn't check for 

in igrp.c for the sniffer.  Where before I did:

if(K5==0)
   no reliability term;
if(K5==1)
   reliability term;

now I do:

if(K5==0)
   no reliability term;
  else
   reliability term;

You won't need the most recent update unless you're
planning on changing the K values (something that
cisco, at present, doesn't recommend).  But, if you
*do* get the update, get *both* igrp.h and igrp.c
as I've moved the Ks from the former to the latter.

Here's the most recent changes for igrp.c

Change log.

3/25/91 - Written  allen
3/26/91 - Don't use 1st byte of local subnets to determine IP
          address of Nets in and outside AS. allen
3/27/91 - Changed K1-K5 from defines in igrp.h to unsigned char 

          variables in igrp.c. -allen
        - Changed test for K5=0 to include other values of
          K5 besides 0 and 1. -allen


thanks Pierre!

allen