Subject: (ION) ITU-T SG 11 discussions concerning Internet interoperation with

From: [email-masked]
Date: Wed, 15 Jul 1998 17:26:40 +0000

ITU-Telecommunication Standardization Sector	Study Group 11
Questions:	ALL (SoI)

SUBJECT:	Status of SoI discussions concerning 
Internet interoperation with DSS2  and B-ISUP 
signalling 

APPROVAL: ITU-T SG 11 in Geneva, 22 May 1998

1.  Introduction

The May 1998 meeting of ITU-T SG 11 benefited 
from the participation of the following ISOC 
representatives:

- 	Dr. Hui-Lan Lu,  ISOC representative 
appointed by the PSTN/Internet Internetworking 
Working Group to Working Party 4/11 (Intelligent 
Networks)(Questions 5/11 and 22/11);
- 	Mr. Joel M. Halpern, ISOC representative at 
ITU-T Study Group 11 Meeting, Geneva, 4-15 May 
1998; and
- 	Mr. Matt Holdrege, IETF Transport 
Directorate Liaison to ITU-T SG 11.

Their contributions to the progress of our work 
during our May 1998 meeting were significant 
both in technical substance and in assisting the 
participants of ITU-T SG 11 to understand the 
ongoing work at ISOC/IETF, thus initiating a 
constructive dialogue between the two 
organizations.

2.  Future interactions

ITU-T SG 11 has appointed Dr. Kenichi KITAMI, 
Chairman of Working Party 1/11, to serve as 
overall point of contact with the ISOC/IETF.  
His e-mail address is: 
[email-masked].

As the need arises for extensive interaction in 
particular work areas, it is our intention to 
appoint appropriate individuals as contact 
persons in those areas, so that distributed 
communications may accelerate information 
exchange.  

So far the following points of contact have been 
identified:

Subject: DSS2 and B-ISUP support of services 
over the Internet
IETF Working Groups:	ION, MPLS, DIFF-SERV, 
INT-SERV, RSVP, RAP	
Contact:  Dr. Kenichi KITAMI, 
[email-masked]

Subject: Intelligent Network interoperation with 
services over the Internet
IETF Working Groups:	PINT
Contact:  Professor Zhengkun Mi, 
[email-masked]

3.  Major Achievements of the ITU-T SG11 May 
1998 meeting

3.1  Major objectives of ITU-T SG 11 concerning 
Signalling Support of Services Over the Internet 

The participants agreed that there are 5 
objectives for efforts within Study Group 11 for 
standardization of Signalling Support of 
Services Over the Internet (SoI):

a)  Efficiently identifying and routing traffic 
destined for Internet Service Providers (ISPs) 
to minimize negative impact upon the Public 
Switched Telephone Network (PSTN), which has 
been engineered for relatively short holding 
time calls;

b)  Defining signalling support for new, value 
added services which may enable public network 
operators, as well as ISPs, to capitalize on the 
growing demand for Internet based and 
Intelligent Network (IN) based capabilities; 

c)  Serving the need of ISPs, Internet Access 
Providers, and "Internet users" to flexibly 
manage dynamic bandwidth and quality of service 
demands from a public network;

d)  Defining mobile wireless access to services 
over the Internet, e.g., virtual private 
networks, provided by either ISPs or public 
network operators; and

e)  Signalling support for Service Interworking 
of both dialup Internet access data applications 
and Voice over IP applications with traditional 
telecommunication services, including support of 
signalling applications and user parts over IP 
based networks.

3.2	DSS2  and B-ISUP support of services over 
the Internet

Related to objective c) mentioned above, ITU-T 
SG 11 received a written indication from the co-
chairman of the MPLS WG that support for the end 
to end transport of MPLS VCID had been discussed 
in the MPLS WG and were considering the use of a 
structured UUI information element.  A number of 
contributions addressing this subject were also 
received.  The result of the discussions within 
ITU-T SG 11 are:

1)	Agreement to associate an ATM Virtual 
Connection with an Internet Session, or an MPLS 
VCID, at the occasion of the connection setup, 
via the Generic Identifier Transport information 
element;
2)	The creation of two baseline documents, one 
for DSS2 (UNI signalling)and the other for B-
ISUP (NNI signalling); and
3) Agreement in principle to initiate approval 
of the draft Recommendation in the next ITU-T SG 
11 meeting in March 1999 (implying final 
approval in February 2000).

Individuals interested in viewing the details of 
the DSS2 baseline document should send a request 
to [email-masked].  A Word format document 
(of TD GEN/11-67R1) will be forwarded to such 
individuals.  

Greg Ratta, Vice Chairman, ITU-T WP 1/11
Lucent Technologies
Tel: +1 732 332 5174, Fax: +1 732 949 1196, [email-masked]
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