The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] RE: 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). -----Original Message----- From: Stephen Mullaney [mailto:stephen.mullaney@parc-technologies.com] Sent: 28 July 2003 11:15 To: 'Lars Higham'; 'Terry Lee'; carlos@carlos.net; richard.james@rogers.com Cc: mpls-ops@mplsrc.com Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF? The way I understand it (and I could be wrong) is that even for an explicit path (no CSPF) the TED is still "sanity checked" to see if the nodes are in it. But regarding the specifics of "what and how", I am not clear on. But I am seeing a little hole in my argument - time to experiment ;-) -----Original Message----- From: Lars Higham [mailto:lhigham@yahoo.com] Sent: 28 July 2003 10:54 To: 'Stephen Mullaney'; 'Terry Lee'; carlos@carlos.net; richard.james@rogers.com Cc: mpls-ops@mplsrc.com Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF? What's going to query the TED if you're not using CSPF? -----Original Message----- From: Stephen Mullaney [mailto:stephen.mullaney@parc-technologies.com] Sent: Monday, July 28, 2003 2:22 PM To: 'Terry Lee'; 'Lars Higham'; carlos@carlos.net; richard.james@rogers.com Cc: mpls-ops@mplsrc.com Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF? You still the the TED for Cisco to check the destination information. I think the verbatim command will tell it not to check the database. But if you don't use that option then CSPF or no CSPF, the TED will need to be present. Using explicit paths allows you to use offline calculations to define the path without the need for on-board CSPF. -----Original Message----- From: Terry Lee [mailto:terrylee@huawei.com] Sent: 28 July 2003 05:47 To: 'Lars Higham'; carlos@carlos.net; richard.james@rogers.com Cc: mpls-ops@mplsrc.com Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF? which version does cisco support it ? why cisco router as an ingress doesn't send path message ? Thanks and Regards, Terry Lee > -----Original Message----- > From: Lars Higham [mailto:lhigham@yahoo.com] > Sent: Monday, July 28, 2003 12:27 PM > To: 'Terry Lee'; carlos@carlos.net; richard.james@rogers.com > Cc: mpls-ops@mplsrc.com > Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF? > > > You are correct - no CSPF, no TED requirement - > > Regards, > Lars > > -----Original Message----- > From: Terry Lee [mailto:terrylee@huawei.com] > Sent: Monday, July 28, 2003 6:44 AM > To: carlos@carlos.net; richard.james@rogers.com > Cc: mpls-ops@mplsrc.com > Subject: RE: [MPLS-OPS]: RSVP LSP without CSPF? > > > Hi > If it works without cspf, I think ospt-te isn't needed in > this case. am I right? > > > > > Thanks and Regards, > Terry Lee > > > -----Original Message----- > > From: carlos@carlos.net [mailto:carlos@carlos.net] > > Sent: Saturday, July 26, 2003 8:58 AM > > To: richard.james@rogers.com > > Cc: mpls-ops@mplsrc.com > > Subject: Re: [MPLS-OPS]: RSVP LSP without CSPF? > > > > > > On Fri, 25 Jul 2003 17:22:20 -0400, richard.james@rogers.com wrote: > > > > cisco has an option "verbatim" , juniper and others > > support it with "no-cspf" > > > > thx > > > > carlos > > > > > > > > Hi, > > > Is it possible to configure an RSVP tunnel with IOS so that it > > > doesn't run CSPF, but only uses the strict/loose path? This is > > > when you want to ignore bandwidth and color constraints and only > > > use the ERO > > to > > > compute the path. > > > > > > I haven't been able to find an option for this in the docs, but if > > > it's there I'd appreciate if someone > > could > > > point me to the command name. > > > > > > Thanks, > > > Richard > > > > > > 1 > > > > > > ------- > > > The MPLS-OPS Mailing List > > > Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml > > > Archive: http://www.mplsrc.com/mpls-ops_archive.shtml > > > > ------- > > The MPLS-OPS Mailing List > > Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml > > Archive: http://www.mplsrc.com/mpls-ops_archive.shtml > > > > ------- > The MPLS-OPS Mailing List > Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml > Archive: http://www.mplsrc.com/mpls-ops_archive.shtml > > ------- > The MPLS-OPS Mailing List > Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml > Archive: http://www.mplsrc.com/mpls-ops_archive.shtml > ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml
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