From: Andy Hogard (andyhogard@gmail.com)
Date: Thu Dec 18 2008 - 15:41:45 ARST
Hmm, I dont think so.
For instance ..the below mentioned prefix, originates at R5 nah
*> 5.0.0.0 131.1.23.3 0 300 400 500 i
I am getting confused now ya, only prefix 3.0.0.0 originates in AS 300, yeah
its true that for R2, they have been received/orginated in AS 300.
Your comments please.
Regards,
Andy.
On Thu, Dec 18, 2008 at 10:15 PM, Narbik Kocharians <narbikk@gmail.com>wrote:
> These are the routes that originated in that AS ONLY.
>
>
> On Thu, Dec 18, 2008 at 8:37 AM, Andy Hogard <andyhogard@gmail.com> wrote:
>
>> Sir its in the GAP wb, BGP dampening lab. :)
>>
>> On Thu, Dec 18, 2008 at 9:36 PM, Narbik Kocharians <narbikk@gmail.com>wrote:
>>
>>> Could you please tell me which lab you are referencing, is it in the GAP
>>> or Soup-to-Nuts?
>>>
>>>
>>>
>>> On Thu, Dec 18, 2008 at 1:06 AM, Andy Hogard <andyhogard@gmail.com>wrote:
>>>
>>>> Hi again,
>>>>
>>>> Well now this is the question ya " All the existing and future prefixes,
>>>> from as 300 should have the following parameters applied: and then the
>>>> question goes on to specify certain dampening parameter values."
>>>>
>>>> In the solution a regexp of ^300$ is used to match the routes, this reg
>>>> exp
>>>> is used for routes that originate from 300 or have only 300 in the
>>>> as-path.
>>>> But if you read the question again its says that *"routes from as
>>>> 300"*which includes all the routes that pass from the as 300 as well,
>>>> yeah they
>>>> dont originate ya.. But then the question is not exclusively saying
>>>> anything
>>>> about it. As a result I would rather go with more generic reg exp of
>>>> ^300_
>>>> ..init !?
>>>>
>>>> This to me looks like a proctor question, can Narbik Sir please answer
>>>> this
>>>> ..as he would be the best proctor for this lab he has set. :D
>>>>
>>>>
>>>> Btw, this is the routing table on R2 on which dampening has to be done,
>>>>
>>>> R2#sh ip bgp
>>>> BGP table version is 8, local router ID is 2.2.2.2
>>>> Status codes: s suppressed, d damped, h history, * valid, > best, i -
>>>> internal,
>>>> r RIB-failure, S Stale
>>>> Origin codes: i - IGP, e - EGP, ? - incomplete
>>>>
>>>> Network Next Hop Metric LocPrf Weight Path
>>>> *> 1.0.0.0 131.1.12.1 0 0 100 i
>>>> *> 2.0.0.0 0.0.0.0 0 32768 i
>>>> *> 3.0.0.0 131.1.23.3 0 0
>>>> 300 i
>>>> *> 4.0.0.0 131.1.23.3 0
>>>> 300
>>>> 400 i
>>>> *> 5.0.0.0 131.1.23.3 0
>>>> 300
>>>> 400 500 i
>>>> *> 40.4.4.0/24 131.1.23.3 0
>>>> 300
>>>> 400 i
>>>> *> 44.4.4.0/24 131.1.23.3 0
>>>> 300
>>>> 400 i
>>>> R2#
>>>>
>>>>
>>>> Btw, I am kicking some butt hard as far as bgp dampening is concerned.
>>>>
>>>>
>>>> Regards,
>>>> Andy.
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> My Blog URL: http://ccieno.blogspot.com/
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Narbik Kocharians
>>> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>>> www.MicronicsTraining.com <http://www.micronicstraining.com/>
>>> www.Net-Workbooks.com <http://www.net-workbooks.com/>
>>> Sr. Technical Instructor
>>>
>>
>>
>>
>> --
>> My Blog URL: http://ccieno.blogspot.com/
>>
>
>
>
> --
> Narbik Kocharians
> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> www.MicronicsTraining.com
> www.Net-Workbooks.com
> Sr. Technical Instructor
>
-- My Blog URL: http://ccieno.blogspot.com/Blogs and organic groups at http://www.ccie.net
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