What doesn't make sense here is why you still have L3 reachability surely if one path goes down even if the CE-PE peering isn't lost then the prefixes that it advertise to the CE peer would be withdrawn if their's a LSP break somewhere in that providers network, I'd establish why this is the case before looking at solutions to a problem which at least I don't understand.
Pfr is optimisation if his traffic is getting blackholed down ISP-1 then it won't help as he'll have the parent routes in the rib
-- BR Sent from my iPhone on 3 On 27 Jun 2013, at 14:17, Adesh Chaudhary <er.adeshchaudhary_at_gmail.com> wrote: > What about PFR??? > OR > Combining EEM with IP SLA??? > > > On Thu, Jun 27, 2013 at 6:35 PM, gaston brait <gbrait_at_hotmail.com> wrote: > >> I work for a company with 2 datacenter connected via a dark fiber and they >> have an IBGP peership between them.Both datacenter have EBGP peers to 2 >> different carriers. Carrier A is the preferred one.The problem is that we >> have >> had several incidents where carrier A has problems on their cloud, but the >> BGP >> peer with us never goes down and we continue to recieve prefix from >> them.When >> this happens we lose all internet connectivity and we need to manually >> switch >> to carrier B.Is there any way to automate this process? Maybe track an >> internet route and if it is unreachable bring the peer down? >> Thanks, >> Regards, >> Gaston >> >> >> Blogs and organic groups at http://www.ccie.net >> >> _______________________________________________________________________ >> Subscription information may be found at: >> http://www.groupstudy.com/list/CCIELab.html >> >> >> >> >> >> >> >> > > > -- > Thanks & Regards, > Adesh > +91 99996 10511 (Delhi) > +91 99860 10511 (Banglore) > > > 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.netReceived on Thu Jun 27 2013 - 16:49:05 ART
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