RE: Question about use of RSVP in Production Networks
"Fleischman, Eric" <eric.fleischman@boeing.com> Fri, 13 August 2004 16:52 UTC
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Date: Fri, 13 Aug 2004 09:37:06 -0700
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Thread-Topic: Question about use of RSVP in Production Networks
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From: "Fleischman, Eric" <eric.fleischman@boeing.com>
To: Bob.Natale@AppliedSNMP.com, Dean Anderson <dean@av8.com>
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Cc: ietf@ietf.org
Subject: RE: Question about use of RSVP in Production Networks
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Bob, I am interested in learning about any and all production use of the RSVP protocol. I am also interested in RSVP-TE. I am especially interested in learning the experiences of any organization which has deployed the RSVP protocol in production environments. I am interested in how well it performs, how cleanly it meets their business objectives, how well it scales, how hard (or easy) is it to manage, etc. --Eric -----Original Message----- From: Bob Natale [mailto:Bob.Natale@AppliedSNMP.com] Sent: Thursday, August 12, 2004 3:00 PM To: Fleischman, Eric; Dean Anderson Cc: ietf@ietf.org Subject: Re: Question about use of RSVP in Production Networks Hi, Were Eric's question and Dean's answer limited to RSVP strictly, or would RSVP-TE deployments be of interest? If the latter, then what about emerging deployments of architectures that use RSVP-TE, such as MPLS, GMPLS, and ASON? (Or are none of the news releases true? ;-) Cordially, BobN ---- Original message ---- >Date: Wed, 11 Aug 2004 18:37:31 -0400 (EDT) >From: Dean Anderson <dean@av8.com> >Subject: Re: Question about use of RSVP in Production Networks >To: "Fleischman, Eric" <eric.fleischman@boeing.com> >Cc: ietf@ietf.org > >RSVP is a idea that doesn't cut the mustard in the real world. There are >several show-stopper problems with RSVP. > >1) somewhat like multicast, anyone using RSVP is vulnerable to others >mis-using or mis-configuring RSVP. ISPs several AS's away can really screw >up things for other ISPs. Because of this, it is unwise to deploy it >because it requires too much trust in other ISPs. > >That relegates RSVP to the enterprise Lan, where it usually isn't needed. >Remember, RSVP is only useful if you have a congestion problem and need to >choose which packets to discard. If you have no congestion problem, then >you have no need of RSVP. However, having a congestion problem also opens >the question of the nature of the congestion and what is the best way to >deal that problem. I was involved in a study done by Genuity and Cisco in >which the congestion problem was found to most often involve the tail >circuit--the link between the customer and the ISP. The best solution for >this problem was found to be low latency queuing, not RSVP. > >2) Unlike multicast, every hop end-to-end must use RSVP for it to be >useful. An RSVP tunnel is useless. > >3) RSVP doesn't detect certain kinds of problems that are important. For >example, a mid-span failure is not visible to RSVP. > >While RSVP is important research, it is not a widely deployable >technology. > >What I-D's are you encountering that depend on RSVP? > > --Dean > >On Tue, 10 Aug 2004, Fleischman, Eric wrote: > >> I am aware of some use of RSVP in labs but I am not aware of any use of >> RSVP in production networks (i.e., real life networks people connect to >> the Internet with). Simultaneously, I am encountering I-Ds and other >> work planning to use RSVP. This possible disconnect concerns me. >> Therefore, I would appreciate being educated by anybody using RSVP in >> production settings. Would you please let me know how many devices, what >> applications, and how successful these deployments (if any) are? Thank >> you. >> >> >> _______________________________________________ >> Ietf mailing list >> Ietf@ietf.org >> https://www1.ietf.org/mailman/listinfo/ietf >> > > >_______________________________________________ >Ietf mailing list >Ietf@ietf.org >https://www1.ietf.org/mailman/listinfo/ietf >_______________________________________________ >This message was passed through ietf_censored@carmen.ipv6.cselt.it, which is a sublist of ietf@ietf.org. Not all messages are passed. Decisions on what to pass are made solely by IETF_CENSORED ML Administrator (ietf_admin@ngnet.it) _______________________________________________ Ietf mailing list Ietf@ietf.org https://www1.ietf.org/mailman/listinfo/ietf _______________________________________________ Ietf mailing list Ietf@ietf.org https://www1.ietf.org/mailman/listinfo/ietf
- Question about use of RSVP in Production Networks Fleischman, Eric
- hop-by-hop and router alert options [Re: Question… Pekka Savola
- Re: hop-by-hop and router alert options [Re: Ques… Masataka Ohta
- Re: hop-by-hop and router alert options [Re: Ques… Martin Stiemerling
- Re: hop-by-hop and router alert options Iljitsch van Beijnum
- Re: hop-by-hop and router alert options [Re: Ques… Florian Weimer
- Re: hop-by-hop and router alert options [Re: Ques… Bob Hinden
- Re: Question about use of RSVP in Production Netw… Dean Anderson
- RE: Question about use of RSVP in Production Netw… Ping Pan
- Re: hop-by-hop and router alert options [Re: Ques… David R Oran
- Re: hop-by-hop and router alert options [Re: Ques… Pekka Savola
- Re: hop-by-hop and router alert options [Re: Ques… David R Oran
- Re: hop-by-hop and router alert options [Re: Ques… Melinda Shore
- Re: hop-by-hop and router alert options [Re: Ques… Pekka Savola
- Re: hop-by-hop and router alert options [Re: Ques… James M. Polk
- RE: Question about use of RSVP in Production Netw… Fleischman, Eric
- RE: Question about use of RSVP in Production Netw… John Loughney
- Re: Question about use of RSVP in Production Netw… Bob Natale
- Re: Question about use of RSVP in Production Netw… Dan Wing
- RE: Question about use of RSVP in Production Netw… Bob Natale
- RE: Question about use of RSVP in Production Netw… Tony Hain
- RE: Question about use of RSVP in Production Netw… Fleischman, Eric
- RE: Question about use of RSVP in Production Netw… Dean Anderson