From: darth router (darklordrouter@gmail.com)
Date: Tue Aug 21 2007 - 08:07:26 ART
Carlos,
the prob is you can have all the routes and not be able to ping devices, due
to them not having routes back to you (backbones) or security features
blocking packets. The TCL scripts you need to test in the lab are simple.
You do not need to be a programmer. You do a show ip alias on every device,
hold down ALT (CRT feature), select the routes, paste into a text file. It
takes about 60 seconds to complete the scripts and grab all the IPs. You
also need to use the TCL scripts several times in your lab to assure you
have not broken anything throughout the day. Not using TCL in the lab
significantly increases your chances of missing something, and ultimately
promoting your failure.
DR
On 8/21/07, Carlos G Mendioroz <tron@huapi.ba.ar> wrote:
>
> TCL may be a great tool to use if you have a complicated lab
> and you have a programing background.
> Last time I thought about it, it sounded more reasonable to check if all
> routers had all info they need (i.e. routes) than to ping from every
> place to every place. And you can actually do that from the confort of a
> single CLI session.
> You make a list of all networks that make up your lab (net and mask)
> and go check (using rsh) every router's RIB for them (using show ip
> route <net> <mask> and parsing the output).
> Then you make a list of all routers you have and do a couple of nested
> for. You only print out what's missing.
> There's a gotcha. It takes time to program this, some 5 - 10 minutes.
> But again, if you get a difficult IGP... this and debug ip routing
> (to catch any instabilities) can help you out.
> -Carlos
>
> Djerk Geurts @ 19/08/2007 16:26 -0300 dixit:
> > Some other examples, I coded one a year ago which can be used as a
> > custom command from cli. It will ping a given IP using all available
> > local addresses:
> >
> > http://www.djerk.nl/wordpress/ccie-rs/things-to-know-lab/tcl/
> >
> > Djerk
> >
> >> -----Original Message-----
> >> From: dayody@googlemail.com [mailto:dayody@googlemail.com] On
> >> Behalf Of dayo@ademuyiwa.com
> >> Sent: zondag 19 augustus 2007 21:04
> >> To: Djerk Geurts
> >> Cc: ccielab@groupstudy.com
> >> Subject: TCL Script for R&S lab
> >>
> >> Hi Guys,
> >>
> >> Looking for away to write a tcl script for IGP and BGP
> >> testing in the R & S exam. Any help will be appreciated
> >>
> >> Thanks
> >>
> >>
> >> On 8/19/07, Djerk Geurts <djerk.geurts@nl.easynet.net> wrote:
> >>
> >> I don't seem to be able to send to the list anymore...
> >> (does this arrive?)
> >>
> >> Now from the correct account.
> >>
> >> Regards,
> >>
> >> --
> >> Djerk
> >>
> >>
> >> ______________________________________________________________
> >> _________
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> >
>
> --
> Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
>
> _______________________________________________________________________
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