[c-nsp] PFR Question

[David Prall]

PfR is a unidirectional feature. The router on the other end needs to be
configured with PfR as well in order to have bidirectional visibility.
Typically the master controller will be local to the site.

--
http://dcp.dcptech.com


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of jack daniels
> Sent: Thursday, March 25, 2010 12:35 PM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] PFR Question
> 
> dear guys,
> 
> is my mail being delivered to group as no one replied.
> 
> On Wed, Mar 24, 2010 at 11:42 PM, jack daniels
> <jckdaniels12 at gmail.com>wrote:
> 
> > Hi Network champs,
> >
> > I'm stuck in understanding of PFR . Docs say it converges in 3 sec (
> for
> > realtime traffic VOICE )...
> >
> > I understand you can send traffic out secondry link but what about
> traffic
> > which has to come back from remote end ( for which SP has not
> converged).
> >
> > But if you have --
> >
> >
> >
> > |CE1--------PE1
> > PE3--------CE3
> >  X.X.X.X---------|                 --------------------MPLS
> > DOMAIN-------------------
> >                      |  CE2--------PE2
> > PE4--------CE4
> >
> >
> > Now my primary link is CE1-PE1 and secondary is CE2-PE2
> > If my CE1-PE1 goes down i route traffic via CE2-PE2<<<<<<I understand
> this
> > ok...
> >
> >
> > BUT MY QUESTION IS -
> >
> > PE3 and PE4 ( for this VRF) still has NOW converged the BGP and still
> for
> > it next hop for X.X.X.X is PE1. So how fwd can happen in 3 sec untill
> > Service providers all routers dont converge and understand that CE1-
> PE1 link
> > is down.
> >
> >
> > Regards
> >
> >
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