[IPFIX] exporting ranges in IPFIX

[Paul Aitken <[e-mail]>]

Dear IPFIX experts,

As far as I know, IPFIX doesn't have a generic mechanism for reporting 
ranges.

I'm looking for a way to report bulk port allocation per section 5 of 
http://tools.ietf.org/html/draft-ietf-behave-lsn-requirements-05.

This method would be useful for reporting port ranges in 
draft-tsou-behave-natx4-log-reduction-02 and draft-bajko-pripaddrassign-04.

So I propose to request three new IPFIX Information Elements:

    Port block start:           16 bits
    Port block step size         8 bits
    Number of ports in block    16 bits


However, there could be better ways to export a "range" which don't 
require three new IEs each time. Do you forsee a need for a such a 
mechanism?

Shall I proceed with my request to IANA? If so, should I write a short 
ID explaining how the three IEs should be used together?

Thanks,
P.