[c-nsp] IOS JUNOS MPLS-TE interoperability

[Jeff Tantsura]

Hi Oliver,

Could you please elaborate more on the interop issue? 

Thanks,
Jeff

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Oliver Boehmer (oboehmer)
> Sent: donderdag 5 juni 2008 9:11
> To: Rubens Kuhl Jr.; cisco-nsp at puck.nether.net; juniper-
> nsp at puck.nether.net
> Subject: Re: [c-nsp] IOS JUNOS MPLS-TE interoperability
> 
> Rubens Kuhl Jr. <> wrote on Thursday, June 05, 2008 2:41 AM:
> 
> > Hi,
> >
> > Does anyone has experience with MPLS-TE interoperability between IOS
> > (specifically ME6500, but it's probably like any other 12.2SX IOS) and
> > JUNOS (recent/stable/good-for-service-providers version) ?
> >
> > I was wondering about 2 cenarios in particular:
> > 1) JUNOS as head-end or tail-end, but not middle-point
> > 2) JUNOS as head-end, tail-end and middel-point
> >
> > All routers would be in the same OSPF area 0, within the same AS #; TE
> > is done by explicit naming of both primary, secondary paths, and a
> > dynamic backup path. AUTOBW is desired. On IOS, traffic is injected on
> > the tunnel using static route to the loopback address; OSPF contains
> > only link states and loopbacks, directly-connected, customer static
> > routes or customer dynamic routes are propagated via IBGP.
> 
> The main Interop issue I'm aware of is TE-FRR protection where IOS
> acting as a headend needs to be configured with the "node-protect"
> option ("tunnel mpls traffic-eng fast-reroute node-protect") in order
> for JunOS midpoints/PLR to be able to protect this tunnel using a NNHOP
> backup (without this knob, only link protection is achieved).
> Stuff like auto-bw or methods to steer traffic down the tunnel are all
> local to the headend.
> 
> So if you're not using TE-FRR (and I'm not sure if you do reading the
> above), you should be fine.
> 
> 	oli
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