From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Sat Jun 01 2002 - 06:08:17 GMT-3
Nigel,
All routers are running in different AS's
No IGP's running between all of the 3 routers.
X/24 is being originated from RtrA
y/24 is to be *conditionally * originated by RtrC (if RtrC stops receiving
X/24 from RtrA)
thanks
Nick
-----Original Message-----
From: Nigel Taylor <nigel_taylor@hotmail.com>
To: ccielab@groupstudy.com <ccielab@groupstudy.com>
Date: Saturday, 1 June 2002 3:43
Subject: Re: BGP conditional Advertisement
>Nick,
> I have a couple of questions?
>
>1. What AS's are the 3 routers in? could you be more specific.
>2. The X and Y routes where do they originate? both from RtrA, X from
RtrA,
>Y from RtrC?
>3. Are there any IGPs running between all the routers.
>
>Nigel
>
>----- Original Message -----
>From: "Nick Shah" <nshah@connect.com.au>
>To: <ccielab@groupstudy.com>
>Sent: Friday, May 31, 2002 11:11 PM
>Subject: BGP conditional Advertisement
>
>
>> Guys,
>>
>> I am trying to achieve a behaviour similar to BGP conditional
>advertisement
>> *without* using non-exist-map and/or advertise-map. Basically ...
>>
>> RtrA ------- RtrC-----------RtrB
>>
>> RtrA advertises route X/24 to RtrC under normal circumstances, when RtrC
>is
>> receiving X/24 from RtrA it suppresses the advertisement of Y/24 (doesnt
>> advertise) to RtrB.
>> But if RtrA stops sending prefix X/24 to RtrC, RtrC starts sending Y/24
to
>> RtrB.
>>
>> All this to be done *without* using advertise-map & non-exist-map
>>
>> Ideas..
>> Nick
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