[j-nsp] L2VPN Active Route Selection

[Zaid Hammoudi]

Thanks Stacy!

On Thu, Nov 3, 2011 at 09:04, Stacy W. Smith <stacy at acm.org> wrote:

> Hi Zaid,
>
> Apparently I sent this answer only to Eric instead of the rest of the list.
>
> --Stacy
>
>
> > -----Original Message-----
> > From: Stacy W. Smith [mailto:stacy at acm.org]
> > Sent: Wednesday, June 29, 2011 12:32 PM
> > To: Eric Van Tol
> > Subject: Re: [j-nsp] L2VPN Active Route Selection
> >
> > Eric,
> >
> > FYI, I think I figured out the answer to this. Seems the path
> > selection algorithm for the L2VPN address family is completely
> > different from the normal path selection algorithm (Section 9.1.2.2
> > from RFC4271).
> >
> > The L2VPN route selection algorithm can be found in Section 3.4.1 of
> > http://tools.ietf.org/html/draft-kompella-l2vpn-vpls-multihoming-02.
> >
> > --Stacy
>
>
>
>
> On Nov 2, 2011, at 3:12 PM, Zaid Hammoudi wrote:
>
> > Eric,
> >
> > Did you figure this out? I am having the same problem except with VPLS...
> >
> >
> > Thanks,
> >
> > -Zaid
> >
> >
> > On Mon, Jun 27, 2011 at 10:51, Eric Van Tol <eric at atlantech.net> wrote:
> >
> >>> -----Original Message-----
> >>> From: Stacy W. Smith [mailto:stacy at acm.org]
> >>> Sent: Monday, June 27, 2011 12:34 PM
> >>> To: Eric Van Tol
> >>> Cc: 'Juniper-Nsp'
> >>> Subject: Re: [j-nsp] L2VPN Active Route Selection
> >>>
> >>> Do you have anything configured under [edit protocols bgp path-
> >>> selection]? Specifically, do you happen to have "cisco-non-
> >>> deterministic" configured?
> >>>
> >>> --Stacy
> >>
> >> No, I do not.  The BGP config on the PE is pretty bare - no options
> >> besides the family:
> >>
> >> admin at lab.router# show protocols bgp | display inheritance
> >> local-address 10.18.20.46;
> >> group 65000-dr {
> >>   type internal;
> >>   family inet {
> >>       unicast;
> >>   }
> >>   family inet-vpn {
> >>       unicast;
> >>   }
> >>   family l2vpn {
> >>       signaling;
> >>   }
> >>   export ibgp-car_to_dr;
> >>   peer-as 7784;
> >>   neighbor 10.18.20.72;
> >>   neighbor 10.18.20.73;
> >> }
> >> group 65000-vpn {
> >>   type internal;
> >>   family inet-vpn {
> >>       unicast;
> >>   }
> >>   family l2vpn {
> >>       signaling;
> >>   }
> >>   neighbor 10.18.20.10;
> >> }
> >>
> >> I thought about configuring 'bgp-always-compare-med' or
> >> 'cisco-non-deterministic', but figured it would be pointless, because
> the
> >> MEDs are all equal, and thus, the options wouldn't have any effect.
> >>
> >> Thanks,
> >> evt
> >>
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> >>
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>