From: Marko Milivojevic (markom@markom.info)
Date: Tue Mar 03 2009 - 14:51:02 ARST
Hi,
some time ago (few months) I wrote on ccie list about this subject.
The solution is to use "ISP-specific communities" to make them prefer
the traffic. Try searching for that message in the archive. I think it
will be of help.
-- Marko CCIE #18427 (SP) My network blog: http://cisco.markom.info/On Tue, Mar 3, 2009 at 16:12, Hotmail <hussamkibbi@hotmail.com> wrote: > Hi Experts, > > Is there a way to prefer incoming traffic other than as-prepening(or any > other attribute like MED), by using conditional advertisment or some other > features? > > The thing is that As-Prepending not always work for all routes, there is > still some routes won't be prefered for any reason. > > So is there a way like to assume this BGP session (backup one(r2) ) to ISP2 > is down until the primary one(r1) to ther ISP1 really get down ? > > r1(Active)--EBGP-->ISP1 B B B B B B B B B B B r1--ibgp---r2 > r2 (Standby)--EBGP-->ISP2 > > > Cheers, > Hussam > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
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