Re: Requirements for IP Multihoming Architectures

[Jun-ichiro itojun Hagino <itojun@iijlab.net>]

>This draft can also be found at:
>http://www.layer8.net/~ben/drafts/draft-black-multi6-requirements-00.txt

	thanks for writing it up!  comments below.

itojun


>Abstract
>
>   Multihoming is an essential component of service for autonomous
>   systems connected to the Internet.  The existing multihoming
>   architecture is based on CIDR [1], which is predicated upon a
>   hierarchy of service providers.

	"autonomous system" - we may need to clarify that it does not need to
	be an "autonomous system" in BGP terminology.  it can be an IPv6 leaf
	site, without autonomous system number (see
	draft-ietf-ipngwg-ipv6-2260-00.txt, use of RFC2260-like technique
	with RIPng).

>3.1 Redundancy
>
>   By obtaining transit through more than one provider, a network can
>   insulate itself from certain failure modes of one or more providers,
>   as well as failures within layer 1 and layer 2 infrastructure.

	it looks to me that we should cover "multiple connectivity to
	a single provider", like to different NOCs/routers.