The IPO-ASON draft was dropped unceremoniously from the IPO WG drafts some time ago. It probably is a victim to the current state of the IPO WG and the level of interest in its activities. The fact that the draft expired doesn't explain why it was removed from the WG drafts. Other expired drafts are still sitting their.
If there is interest, a new revision could be worked out to include the latest ASON related work as per the ITU meeting in January 2003. However I don't think IPO is the right place for it.
Regards;
>Ah, OK. No new references. Just a query about whether IPO-ASON is ood.
>It may be ood but it also provides relevant IETF b/g.
>So it stays for the moment and either it gets republished, or the ref gets
>dropped later.
>Thanks,
>Adrian