Subject: Re: [Sip] bis-05: transport mechanisms

From: Jonathan Rosenberg <[email-masked]>
Date: Tue, 18 Dec 2001 14:41:33 -0500

Bob Penfield wrote:

> From: "Drage, Keith (Keith)" <[email-masked]>
> 
>>Line 2813 of the bis draft states:
>>
>>All SIP elements MUST support UDP at a minimum.
>>
> 
> Should this be "SIP imlementations" instead of SIP elements? I may have an
> implementation that supports UDP, but an actual deployed element might be
> configured to accept only TCP. Or does this statement make the configured
> element non-conforming?

This is a common issue, especially for security protocols.

The standard terminology is "MUST implement", but that does not imply 
that it MUST be used. As such, a deployed element that just uses tcp is 
compliant.

-Jonathan R.
-- 
Jonathan Rosenberg, PhD                 72 Eagle Rock Avenue
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