Network Products
Updated: 17 April 1997
 

IP Switching Tech Tip


Script for setting default VCI on IP Switch Gateway and Controller


Introduction

The script below is a UNIX shell script designed to be run on the IP Switch Gateway (DAGIG) or the IP Switch Controller (DAGIC). This script automatically edits the /etc/rc.local file on these machines. If you know VI, then you may edit /etc/rc.local directly, as described in the tech tip on setting the default VCI for IP SWitching. This script is provided as a more direct mechanism for those not familiar with VI.

Procedure

  1. Create the following script, and save it as a file named setvci on the target system. 
    #!/bin/sh
#
# Copyright Digital Equipment Corporation 1997. All rights reserved.
#
# Restricted Rights: Use, duplication, or disclosure by the U.S. Government
# is subject to restrictions as set forth in subparagraph (c) (1) (ii) of
# DFARS 252.227-7013, or in FAR 52.227-19, or in FAR 52.227-14 Alt. III, as
# applicable.
#
# This software is proprietary to and embodies the confidential technology
# of Digital Equipment Corporation.  Possession, use, or copying of this
# software and media is authorized only pursuant to a valid written license
# from Digital or an authorized sublicensor.
#

if test $# -ne 1
then
  echo "usage: setvci vci_value" >&2
  exit 1
fi

if [ ! -z "`grep change_llc /etc/rc.local`" ]
then
  grep -v change_llc /etc/rc.local >/tmp/setvcitmp
  mv /tmp/setvcitmp /etc/rc.local
fi
echo "/usr/ips/change_llc ips0 $1" >>/etc/rc.local
exit 0
  2. Place the script in the /usr/bin directory of the target system. Name the file 'setvci'. Be certain to enable execut privileges on the file by issuing the command chmod 755 /usr/bin/setvci. Update the command tables in you shell by issuing the rehash command.

  3. Rung the script by issuing the setvci 32 command, where the number 32 may be replaced by the value you wish to use as the default VCI for IP Switching.

  4. The script only has to be run once. The script edits the /etc/rc.local file on the system, making the change persistent across system resets.