Date: Fri, 2 Nov 2001 16:27:01 -0500 From: Barney Wolff <barney@databus.com> To: Lars Eggert <larse@ISI.EDU> Cc: Randall Stewart <randall@stewart.chicago.il.us>, freebsd-net@FreeBSD.ORG Subject: Re: SCTP and multiple default routes Message-ID: <20011102162701.A38190@tp.databus.com> In-Reply-To: <3BE303EA.1040506@isi.edu>; from larse@ISI.EDU on Fri, Nov 02, 2001 at 12:36:58PM -0800 References: <3BE30097.C02C828D@stewart.chicago.il.us> <3BE303EA.1040506@isi.edu>
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On Fri, Nov 02, 2001 at 12:36:58PM -0800, Lars Eggert wrote: > > Disclaimer: I may be biased here, because I think implementing > multi-homing at the transport layer (like SCTP tries to) is a bad idea > in general. It's a network layer concept, reimplementing it at the > transport layer gives you no new capabilities. Whether or not multiple default routes is a good idea, SCTP-style multihoming makes a tremendous difference for small organizations that cannot justify getting a block of addresses big enough to be routed by multiple providers. With SCTP I can have a host with an address from a cable-modem provider and another from a dsl provider and my peers can treat both as addresses of my one machine, so connections will not break if one link goes down. The big payoff for the Internet as a whole is I don't need a separate route to me in the global routing tables. I would gladly pay for two such links if there were an automatic way to switch away from a broken link. Without asking cable or dsl providers to talk bgp to me (which they will surely refuse to do) this is not easy. -- Barney Wolff "Nonetheless, ease and peace had left this people still curiously tough. They were, if it came to it, difficult to daunt or to kill; and they were, perhaps, so unwearyingly fond of good things not least because they could, when put to it, do without them, and could survive rough handling by grief, foe, or weather in a way that astonished those who did not know them well and looked no further than their bellies and their well-fed faces." J.R.R.T. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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