Re: [Insipid] draft-ietf-insipid-session-id versus RFC 3323

Brett Tate <brett@broadsoft.com> Wed, 29 June 2016 19:47 UTC

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From: Brett Tate <brett@broadsoft.com>
References: <21575ee6e889d5d4fdd306e7ca579185@mail.gmail.com> <D98EFE31-60FF-4038-8D81-36572B4A39CF@cisco.com>
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Date: Wed, 29 Jun 2016 15:47:18 -0400
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To: "Paul Giralt (pgiralt)" <pgiralt@cisco.com>, insipid@ietf.org
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Subject: Re: [Insipid] draft-ietf-insipid-session-id versus RFC 3323
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Hi,

Thanks for the response; reply is inline.

> Could it be considered “essential” for troubleshooting?
> Maybe not because you could troubleshoot without it - it
> would just be more difficult - but it is not absolutely
> necessary (essential). However, a customer may have some
> diagnostic infrastructure in place that relies on the
> presence of the Session-ID header in which case then
> it is essential for their tools to work.

I agree that some administrators might not want Session-ID to be removed.


> Are there any examples of other headers that
> implementers of 3323 have not removed based on the
> clause in section 5.3?

I assume that vendors have applied the concept in a variety of ways with
various degrees of configurability.


> Do you have a strong opinion either way?  I can see
> arguments for and against removing it, so I don’t have
> a strong opinion.

I also do not have a strong opinion.


> Either way, does it bear mentioning in the Session-ID
> specification?

Depending upon interpretation, draft-ietf-insipid-session-id and RFC 3323
have conflicting mandates.

If the working group desires a specific behavior, it should likely be
discussed within the draft if RFC 3323 causes an ambiguity or conflict with
the desired behavior.

If the intermediary removes the Session-ID, I assume that a different (or
maybe the same) intermediary might add a different Session-ID.

As usual, the topic of privacy related to lawful intercept doesn't need to
be discussed.  I assume that some vendors will implement conferenced lawful
intercept as not being a conference.