Re: testing lab connectivity

From: Grammer, Christopher <cgrammer_at_essilorusa.com>
Date: Thu, 26 Aug 2010 10:33:34 -0500

A cool trick I learned with Secure CRT:

On each router issue the command:

show ip alias

R1#sh ip alias
Address Type IP Address Port
Interface 1.1.1.1
Interface 10.10.50.1
Interface 150.50.24.4
Interface 200.0.0.4

Now, in secure CRT, hold down the ALT key and selectively highlight the IP
addresses and paste them into notepad for your TCL script.

Chris

On Thu, Aug 26, 2010 at 10:28 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:

> Some options you may consider to complement whatever you use:
>
> -debug ip routing
> This will show quite fast if you have some instability because of
> redistribution
>
> -tcl based route availability checks
> instead of pinging, just find out at every router if your routes are there
>
> -remote exec
> instead of changing the terminal to see at every router, use remote command
> so you may use 1 tcl script to coomand the whole show
>
> -Carlos
> --Hammer-- @ 26/8/2010 10:45 -0300 dixit:
>
> Sorry CCIE UY, I was somewhat joking. There are a multitude of show
>> commands to give you a good gauge of your reachibility in a lab. However,
>> other than ping, I think TCL is the generally preferred (as in optimal)
>> method by most of the instructors on the forums for good reason. I'm not
>> aware of anything more effective for "scanning" your topology quickly to
>> determine if you have lost any connectivity. The hardest part is keeping
>> track of all the physical interfaces and loopbacks and whatnot to make sure
>> your script has everything covered.
>>
>> --Hammer--
>>
>>
>> On 8/25/2010 8:51 PM, CCIE UY wrote:
>>
>>> Ping line by line... takes a lot of your time...
>>>
>>>
>>> 2010/8/25 --Hammer-- <bhmccie_at_gmail.com <mailto:bhmccie_at_gmail.com>>
>>>
>>> Ping?
>>>
>>> --Hammer--
>>>
>>>
>>>
>>> On 8/25/2010 2:22 PM, CCIE UY wrote:
>>>
>>> Hi Guys, is there any other or better solution than to
>>> create a TCL
>>> script in Routers to verify conectivity in the real lab?
>>>
>>> Regards.
>>>
>>> Horacio.
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>> <http://www.ccie.net/>
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>>
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>>
>>
>>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
>
> Blogs and organic groups at http://www.ccie.net
>
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Received on Thu Aug 26 2010 - 10:33:34 ART

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