At 12/1/2001 05:44 AM, Joe Abley wrote:
APNIC almost have a policy on micro-allocations for the purpose of multi-homing:
http://www.apnic.net/meetings/12/docs/proposal-multihome-assign.html http://www.apnic.net/meetings/12/results/index.html#2
This was due to become finalised in December, last I heard. No need to have carriers "take your case(s)" to APNIC.
I would not be so optimistic about timing for this policy. Its not a policy that has support across all three Regional Internet Registries, as far as I am aware.
It's also commonplace for ISPs in NZ (and almost everywhere else in the world, as far as I can tell) to punch holes in each others' PI netblocks to allow PA-delegated blocks to be used for multi-homing. This is sufficiently recognised as common practice that it will be documented in the current-practices document in the ietf multi6 wg.
Getting back to the issue of problem identification and priorities. IF the growth and dynamic stability of the inter-domain routing space using the current capabilities of BGP4 are your primary concern, then this practice is one that causes concern. If, of course, one looks at this from the perspective of ensuring a strongly competitive IP transit market then number portability is also a deep concern. Unfortunately multi6 has, to date, just not been able to provide a framework that can reconcile these two perspectives. i.e. documenting current practices is not an implied value judgement on those practices. There are barriers in place to discourage too many people from
multihoming. These are important, since the current routing system is not scaling well, and a rush of multihoming at the edge (using routing-based mechanisms) will make it blow up.
Not quite - it will take the deployed base of the Internet into territory which is largely uncharted, and in such a space blowing up is a possible, but not entirely certain outcome. The concern is that we'd rather NOT learn by experience in this case. thanks, Geoff - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog