How, exactly, would specifying the order make any difference to an implementation in terms of:

* code size and complexity
* processing time
* interoperability

Seems to me such a requirement would reduce interoperability with existing implementations.

- Ralph

On Jun 23, 2010, at 1:58 PM 6/23/10, Richard Kelsey wrote:

From: Zach Shelby <[email protected]>
Date: Tue, 22 Jun 2010 14:51:32 +0300

I have a proposal to make ND message processing simpler. RFC4861 and
6lowpan-nd-10 don't specify any specific order in which options are to
be included, making parsing more complex. We could simplify things by
specifying the order options in the NS, NA, RS, RA messages MUST be
carried.

If nothing else, specifying the order is likely to
reduce interoperation problems.  Requiring that they
be in order of increasing Type would be simplest.
Seems like a good idea.
                             -Richard Kelsey
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