Re: Redistribute connected

From: khurram noor (smartcapricon82@gmail.com)
Date: Fri Dec 12 2008 - 13:55:17 ARST

Thanks FAH, Thats the sort of reply i was expecting. 50% of my cofusion is
cleared as i read through your description and 50% will clear as i will
simulate it,

On Tue, Dec 9, 2008 at 1:15 AM, Farhan Anwar <farhan.anwar@gmail.com> wrote:

> There are two types of protocols involved in the redistribution, first are
> the redistributed ones which are being redistributed into another protocol,
> and second are the redistributing ones.
>
> When you redistribute a routing protocol into another, by default the
> process follows two rules:
> 1. It checks and redistributes the connected interfaces which are included
> in the redistributed protocol.
> 2. It checks and redistributes the learned routes for that redistributed
> protocol.
>
> But when you use "redistribute connected", and limit it to a specific
> interface using a route-map the first default rule (defined above) gets
> over-ruled by the route-map you have created.
>
> Hence the final result after redistribution, the routes shown in the
> redistributing protocol will be:
> 1. Routes for the Interfaces included in the route-map used in redistribute
> connected.
> 2. Routes learned from the redistributed protocol.
>
> So the missing routes are: Connected interfaces which were a part of
> redistributed protocol but are absent in the route-map being used in the
> "redistribute connected".
>
> For resolving this, just add those missing interfaces into the route-map as
> well.
>
> HTH.
>
>
> On Tue, Dec 9, 2008 at 12:18 AM, Hobbs <deadheadblues@gmail.com> wrote:
>
>> A common scenario is when you are redistributing among 3 protocols on the
>> same router. Lab it and see what happens when you don't use it.
>>
>> On Mon, Dec 8, 2008 at 8:58 AM, Darby Weaver <ccie.weaver@gmail.com>
>> wrote:
>>
>> > I think in terms of the lab it depends on the requirements given on how
>> the
>> > interface might need to be advertised to the network.
>> >
>> > If you do use redistribute connected then you might want to use a
>> route-map
>> > to limit which interfaces are actually redistributed in the specific
>> > protocol to meet your exlicit requirements of the task at hand.
>> >
>> > For example you might be restricted from using the network command or
>> some
>> > other type of wording.
>> >
>> > In life, I suppose you can do it in either fashion.
>> >
>> >
>> >
>> >
>> > On Mon, Dec 8, 2008 at 10:20 AM, khurram noor <
>> smartcapricon82@gmail.com
>> > >wrote:
>> >
>> > > Hi Guys,
>> > > I have a question in my mind for some days now, i always think why is
>> > > redistribute connected command used some times while we do
>> > redistribution.
>> > > NOw i have also noticed that many times it is not used. Can anyone
>> tell
>> > me
>> > > what is the best place to use this command, where this command should
>> be
>> > > used and where it is not required ? Please help as I need to clear
>> this
>> > > confusion.
>> > >
>> > > --
>> > > Khurram Noor
>> > > CCIP, CCNA
>> > >
>> > >
>> > > Blogs and organic groups at http://www.ccie.net
>> > >
>> > >
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>>
>>
>>
>
>
> --
> Syed Farhan A. Hussain
> CCIE #19871
> Senior Network Consultant
> www.farhananwar.com
> 

-- 
Khurram Noor
CCIP, CCNA

Blogs and organic groups at http://www.ccie.net

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