Interaction of SIPS with old implementations that weren't really using SIPS (was Re: [Sip] draft-ietf-sip-sips-03.txt)

[Dean Willis <dean.willis at softarmor.com>]

Alan Johnston wrote:
>  Also, since there are no deployments of sips, there is no backwards
>  compatibility issue.

Ok, here's a silly question for you.

Given, there are no big deployments of SIPS that we've heard of.

However, many of the implementations we've been made aware of
support SIPS, or can at least be configured to react differently to
SIPS requests (whether that implies supporting SIPS is debatable).

If we have a deployment of the "new and improved" SIPS, the traffic
it produces is likely to hit some of those old implementations that
we don't currently consider "deployed" for SIPS.

What happens? Do things break? Or are we confident that those
older implementations of SIPS are all configured "off"?

--
Dean




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