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Re: RSVP LSP without CSPF?

  • From: "carlos" <carlos@carlos.net>
  • Date: Mon, 28 Jul 2003 21:22:02 -0700
  • Cc: <mpls-ops@mplsrc.com>
  • Resent-Date: Tue, 29 Jul 2003 00:48:14 -0400
  • To: "Stephen Mullaney" <stephen.mullaney@parc-technologies.com>, "'Lars Higham'" <lhigham@yahoo.com>, "'Terry Lee'" <terrylee@huawei.com>, <richard.james@rogers.com>
  • X-Sent: 29 Jul 2003 04:23:56 GMT


----- Original Message -----
From: "Stephen Mullaney" <stephen.mullaney@parc-technologies.com>
To: "Stephen Mullaney" <stephen.mullaney@parc-technologies.com>; "'Lars
Higham'" <lhigham@yahoo.com>; "'Terry Lee'" <terrylee@huawei.com>;
<carlos@carlos.net>; <richard.james@rogers.com>
Cc: <mpls-ops@mplsrc.com>
Sent: Monday, July 28, 2003 3:37 AM
Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF?


> Tried an experimet - at least in the inter-area case if you build an
> explicit path (no CSPF) it all goes belly up with a PCALC error of
> destination not found (dest is in IGP).  Put in a loose-hop to the ABR and
> it works.  So the TED is sanity checked in the strict explicit-path case
(at
> least on my cisco routers).

Some implementations (could) just refer to FIB entries,if tunnel destination
exists in FIB
MPLS process could just send PATH msg along the path.

If explicit-route is configured,ERO object will follow the hop-list
configuration,
otherwise it may send PATH msg without ERO object at all
(FYI: ERO is not mandatory object in TE)


Thanks,


Carlos

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