[Sipping] Vertical handover of multimedia sessions using SIP
"Saverio Niccolini" <Saverio.Niccolini@netlab.nec.de> Thu, 01 March 2007 13:49 UTC
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Date: Thu, 01 Mar 2007 14:49:42 +0100
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Thread-Topic: Vertical handover of multimedia sessions using SIP
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From: Saverio Niccolini <Saverio.Niccolini@netlab.nec.de>
To: sipping@ietf.org
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Cc: Luca Veltri <luca.veltri@unipr.it>, Juergen Quittek <Quittek@netlab.nec.de>
Subject: [Sipping] Vertical handover of multimedia sessions using SIP
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Dear SIPPING group, we recently submitted a new draft: "A solution for vertical handover of multimedia sessions using SIP" (draft-salsano-sipping-siphandover-solution-00.txt) supporting the requirements we described here (the draft was updated from the -00 version): "Requirements for vertical handover of multimedia sessions using SIP" (draft-niccolini-sipping-siphandover-01.txt) We believe this solution to be ready for discussion within this group. Our draft present a solution we already implemented and tested solving a real problem of a roaming mobile host equipped with multiple interfaces. We believe the mobility support offered by SIP is poor in this case and also the mobility support offered by Mobile IP is either too complicated or poor (and we have proved it in our studies) and therefore we propose to extend the mobility support in SIP using an intermediate anchoring element. For doing this we have identified extension required to the SIP signaling consisting in: -- an additional header to carry handover related information -- an additional tag to help in the identification of users at intermediate elements I would like to comment together with you on this draft even if I know the group is currently focused on other issues I would appreciate you to take a look at it an comment over the list. Thanks in advance for your comments, Saverio ============================================================ Dr. Saverio Niccolini Senior Research Staff Member Network Laboratories, NEC Europe Ltd. Kurfuerstenanlage 36, D-69115 Heidelberg Tel. +49 (0)6221 4342-118 Fax: +49 (0)6221 4342-155 e-mail: saverio.niccolini@netlab.nec.de ============================================================ NEC Europe Limited Registered Office: NEC House, 1 Victoria Road, London W3 6BL Registered in England 2832014 _______________________________________________ Sipping mailing list https://www1.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@cs.columbia.edu for questions on current sip Use sip@ietf.org for new developments of core SIP
- [Sipping] Vertical handover of multimedia session… Saverio Niccolini