Hi,
To enable fastreroute you need to have a traffic engineering domain and you
can't switch of cspf in the configuration. Fastreroute uses the TED at the
head end (ingress) of the lsp to calculate fastreroute detours.
So you need isis configured or ospf with traffic-engineering switched on eg:
protocols {
ospf {
traffic-engineering;
area 0.0.0.0 {
interface all;
interface fxp0.0 {
disable;
}
}
}
}
Also in the topology show there is no fastreroute detour paths available but
I assume the topology shown is just for demonstration purpose.
I hope this helps.
Gary
>-----Original Message-----
>From: Dave Humphrey [mailto:dave.humphrey@telindusk.net]
>Sent: 07 September 2001 08:29
>To: Andrew Smith; juniper-nsp@puck.nether.net
>Subject: RE: [j-nsp] Quick sanity check on my fast re-route configs
>
>
>
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>Hash: SHA1
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>You're right. No config is required for the LSP on the transit
>nodes. You do have to have configured MPLS and RSVP. Remember that
>MPLS has to be enabled on each required interface under the interface
>hierarchy as well as within the MPLS process.
>
>Why are you creating two LSP's with identical paths?
>
>Dave Humphrey
>
>- -----Original Message-----
>From: Andrew Smith [mailto:as160@yahoo.com]
>Sent: 06 September 2001 21:33
>To: juniper-nsp@puck.nether.net
>Subject: [j-nsp] Quick sanity check on my fast re-route configs
>
>
>Can someone check and if I've missed anything.
>
>
> R1---R2-----R3---R4
>
>At headend you enable fast reroute for each of the
>LSP.
>
>protocols {
> rsvp {
> interface all;
> }
> mpls {
> label-switched-path 1 {
> to 4.4.4.4;
> metric 1;
> install a.b.c.d/x active;
> no-cspf;
> fast-reroute;
> }
> label-switched-path 2 {
> to 4.4.4.4;
> metric 1;
> install e.f.g.h/y active;
> no-cspf;
> fast-reroute;
> }
>
>And then of course you enable mpls under the interface
>that is involved and choose an IGP.
>Nothing needs to be done at transit nodes, right?
>
>- ---andrew
>
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>=XTmt
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>
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