nanog mailing list archives
RE: MFS WorldCom/WilTel/LDDS
From: Vadim Antonov <avg () quake net>
Date: Tue, 3 Sep 1996 19:26:12 -0700
Peter Ford <peterf () microsoft com> wrote:
Metcalfe certainly is not the first, or the last, to call for "reservations" and last time I looked a lot of the work in the IETF is centered on this area. This does bring up the interesting point of will/should the Internet business model change to support reservations.
Peter, i nave no problems with resource reservation or charging based on resource reservation as a business model. It is perfectly valid. What i have problem with is that nobody ever managed to explain how a data network of size of Internet providing resource reservation can be built. The problem is that in "fat state" schemes (i.e. keeping per-connection state in gateways) consistently yield linear growth of state in gateways at exchange points as function of network size. Which, given exponential growth of Internet is not going to fly. Remember that Moore's Law has smaller exponent built in. I wouldn't even dwell on differences in session arrival patterns between POTS and Internet which make all Erlang-based telco technology to be totally useless to handle Internet kind of traffic. I feel sorry for folks who work on RSVP et al, they're very much like those brilliant minds who spent their lives improving perpetuum mobiles. Some of the devices were truly amazing feats of engineering. No amount of technical cleverness can deal with the fundamental scaling problem. It's like the second law of thermodynamics.
Let's assume some kind of "promise" beyond the current best effort service is offered. Do you really believe this will not be based on usage?
I know that application targeted by resource-reservation can happily work without. There are numerous proofs by existance. My question is -- what exactly resource reservation is going to solve? Is there a problem to start with? --vadim - - - - - - - - - - - - - - - - -
Current thread:
- Re: MFS WorldCom/WilTel/LDDS Hank Nussbacher (Sep 01)
- <Possible follow-ups>
- Re: MFS WorldCom/WilTel/LDDS Hank Nussbacher (Sep 01)
- Re: MFS WorldCom/WilTel/LDDS Roger Bohn (Sep 01)
- Re: MFS WorldCom/WilTel/LDDS Vadim Antonov (Sep 01)
- Re: MFS WorldCom/WilTel/LDDS Alex.Bligh (Sep 02)
- Re: MFS WorldCom/WilTel/LDDS Sean Donelan (Sep 02)
- RE: MFS WorldCom/WilTel/LDDS Jim Browning (Sep 02)
- RE: MFS WorldCom/WilTel/LDDS Peter Ford (Sep 03)
- RE: MFS WorldCom/WilTel/LDDS Vadim Antonov (Sep 03)
- RE: MFS WorldCom/WilTel/LDDS Peter Ford (Sep 04)
- RE: MFS WorldCom/WilTel/LDDS Sean Doran (Sep 04)
- RE: MFS WorldCom/WilTel/LDDS Vadim Antonov (Sep 04)