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TestLab Scripts

June 18th, 2010 jud Leave a comment Go to comments

I wrote a couple of scripts for the testlab this week and figured I would share them. You can download them here. These could be modified for a GNS3 lab setup easily as well. Not wanting to reinvent the wheel I googled around and started hacking another script. It started off with something like this:

#!/bin/sh
# Usage: $0 [command]
pgrep -u "$USER" gnome-terminal | grep -qvx "$$"
if [ "$?" -eq 0 ]; then
  WID=`xdotool search --class "gnome-terminal" | head -1`
  xdotool windowactivate $WID
  #xdotool key ctrl+shift+t
  xdotool key ctrl+t

But gnome-terminal sets the environmental variable WINDOWID so I began by changing it to:

#!/bin/sh
# Usage: $0 [command]

xdotool windowactivate $WINDOWID
xdotool key ctrl+t

But then I read the gnome-terminal manpage to see what other environmental variables it set and decided all the xdotool commands were too much for what I needed. So I simplified into two main scripts, one to handle the gnome-terminal interactions and one to handle the router interactions.

#!/bin/bash
# 2010-06-14 Jud Bishop
# tlr
# This script opens a single gnome-terminal tab and log into a router in
# the testlab.

if [ $# -ne 1 ]
then
    echo -e "Usage: ${0} router_id\n tlr R1\n"
    exit 1
fi

gnome-terminal --tab -e "tle ${1}" -t "${1}"

The expect script to handle the interaction with the 2511-RJ getting logged into the router.

#!/usr/bin/expect
# 2010-06-14 Jud Bishop
# tle
# A short script to handle logging into a router in the lab.

set host "testlab.chainringcircus.org"
set pass "CHANGEME"

##############################
# Should not need any more changes.
set router [lindex $argv 0]

spawn telnet $host
expect "Password:"
send "$pass\r"
expect "testlab>"
send "telnet $router\r"
sleep 1
send "\r"
sleep 1
send "\r"
interact
exit

And finally the script that logs into every router in the lab, renaming the tab title to match the router name.

#!/bin/bash
# 2010-06-14 Jud Bishop
# tl
# This script fires up gnome-terminal with a bunch of tabs each executing
# the tle script and naming the tab with the router name.

gnome-terminal --tab -e "tle R1" -t "R1" \
--tab -e "tle R2" -t "R2" \
--tab -e "tle R3" -t "R3" \
--tab -e "tle R4" -t "R4" \
--tab -e "tle R5" -t "R5" \
--tab -e "tle R6" -t "R6" \
--tab -e "tle R7" -t "R7" \
--tab -e "tle R8" -t "R8" \
--tab -e "tle R9" -t "R9" \
--tab -e "tle Cat1" -t "Cat1" \
--tab -e "tle Cat2" -t "Cat2" \
--tab -e "tle Cat3" -t "Cat3" \
--tab -e "tle Cat4" -t "Cat4" \
--tab -e "tle BB1" -t "BB1" \
--tab -e "tle BB2" -t "BB2" \
--tab -e "tle BB3" -t "BB3"
Categories: Code, Routing Tags:
  1. that1guy15
    June 18th, 2010 at 10:19 | #1
    Reply | Quote

    Alright! i am very interested in this. Im working on my CCIP right now and my main lab is 18+ routers. Dont need that many but i like the challange :), plus i find MPLS and BGP very interesting and cant get enough of it right now

    Ill be playing around with this very soon!

    Thanks Jud

  2. Jud
    June 18th, 2010 at 19:04 | #2
    Reply | Quote

    Glad to hear it will help. I should mention that these scripts actually log me into a 2511-RJ, and from there into the console of the router.

    Hope that helps. Sounds like a nice lab with 18+ routers.

    Jud

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