Hi,
a clarification in case somebody gets confused by the dates in the past.
We are adding the last two additional milestones as a result of the
rechartering. The dates of the two already-existing milestones (the
first two on the list below) will be updated to reflect the current
estimates for their completion.
Cheers,
Gonzalo
On 29/09/2013 4:18 PM, Gonzalo Camarillo wrote:
Folks,
note that as a result of this rechartering, the milestones will be the
following:
Dec 2012 Requirements and use cases for new identifier sent to IESG
(as informational)
Feb 2013 Specification of the new identifier sent to the IESG (PS)
Dec 2013 Requirements for marking SIP sessions for logging to IESG
(Informational)
Mar 2014 Protocol for marking SIP sessions for logging to IESG
(Proposed standard)
Cheers,
Gonzalo
On 27/09/2013 7:08 PM, The IESG wrote:
The INtermediary-safe SIP session ID (insipid) working group in the
Real-time Applications and Infrastructure Area of the IETF is undergoing
rechartering. The IESG has not made any determination yet. The following
draft charter was submitted, and is provided for informational purposes
only. Please send your comments to the IESG mailing list (iesg at
ietf.org) by 2013-10-07.
INtermediary-safe SIP session ID (insipid)
------------------------------------------------
Current Status: Active WG
Chairs:
Gonzalo Salgueiro <gsalguei(_at_)cisco(_dot_)com>
Keith Drage <keith(_dot_)drage(_at_)alcatel-lucent(_dot_)com>
Assigned Area Director:
Gonzalo Camarillo <gonzalo(_dot_)camarillo(_at_)ericsson(_dot_)com>
Mailing list
Address: insipid(_at_)ietf(_dot_)org
To Subscribe: https://www.ietf.org/mailman/listinfo/insipid
Archive: http://www.ietf.org/mail-archive/web/insipid/
Charter:
An end-to-end session identifier in SIP-based multimedia communication
networks refers to the ability for endpoints, intermediate devices,
and management and monitoring system to identify and correlate SIP
messages and dialogs of the same higher-level end-to-end
"communication session" across multiple SIP devices, hops, and
administrative domains. Unfortunately, there are a number of factors
that contribute to the fact that the current dialog identifiers
defined in SIP are not suitable for end-to-end session
identification. Perhaps the most important factor worth describing is
that in real-world deployments of Back-to-Back User Agents (B2BUAs)
devices like Session Border Controllers (SBC) often change the call
identifiers (e.g., the From-tag and To-tag that are used in
conjunction with the Call-ID header to make the dialog-id) as the
session signaling passes through.
An end-to-end session identifier should allow the possibility to
identify the communication session from the point of origin, passing
through any number of intermediaries, to the ultimate point of
termination. It should have the same aim as the From-tag, To-tag and
Call-ID conjunction, but should not be mangled by intermediaries.
A SIP end-to-end session identifier has been considered as possible
solution of different use cases like troubleshooting, billing, session
recording, media and signaling correlation, and so forth. Some of
these requirements come from other working groups within the RAI area
(e.g., SIPRec). Moreover, other standards organizations have
identified the need for SIP and H.323 to carry the same "session ID"
value so that it is possible to identify a call end-to-end even when
performing inter working between protocols.
Troubleshooting SIP signalling end-to-end becomes impractical as
networks grow and become interconnected, including connection via
transit networks, because the path that SIP signalling will take
between clients cannot be predicted and the signalling volume and
geographical spread are too large.
This group will focus on two documents:
The first document will specify a SIP identifier that has the same aim
as the From-tag, To-tag and Call-ID conjunction, but is less likely to
be mangled by intermediaries. In doing this work, the group will pay
attention to the privacy implications of a "session ID", for example
considering the possibility to make it intractable for nodes to
correlate "session IDs" generated by the same user for different
sessions.
The second document will define an indicator that can be added to the
SIP protocol to indicate that signalling should be logged. The
indicator will typically be applied as part of network testing
controlled by the network operator and not used in regular client
signalling. However, such marking can be carried end-to-end including
the SIP terminals, even if a session originates and terminates in
different networks.
Milestones:
Dec 2012 - Requirements and use cases for new identifier sent to IESG
(as informational)
Feb 2013 - Specification of the new identifier sent to the IESG (PS)
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