Re: The state of IPv6 multihoming development

[Tim Chown <tjc@ecs.soton.ac.uk>]

On Wed, Oct 23, 2002 at 08:24:48AM +1100, Peter Tattam wrote:
> 
> One thing still remains clear though - multihoming is the thorn in the side for
> IPv6.  Until it is finalized, IPv6 will be going nowhere.

Is it really that big a thorn?

To play devil's advocate...

What proportion of Internet sites are multihomed?  Academia generally isn't,
not to the universities, although the NRENs will have multiple peerings.

What proportion of Internet enterprise sites are mission critical?  My home
or small business DSL/cable network certainly isn't multihomed, in the
access network at least.   Itojun is a rare example with four home /48's,
I think :)

How frequently are multihomed sites calling on their resilient links?  Of
course ISPs like to sell additional connectivity.

How much of the IPv4 DFZ clutter is due to multihomed sites?  

Are 3GPP systems using IPv6 in Release 5 multihomed?
 
I don't see lack of multihoming stopping deployment to academic networks
(many 10's of millions of users), or to broadband home networks.  There's
a potentially big IPv6 market in the latter.

Multihoming is important, but is it that important?

Tim