I-D ACTION:draft-ietf-ion-sig-uni4.0-03.txt

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 A Revised Internet-Draft is available from the on-line Internet-Drafts 
 directories. This draft is a work item of the Internetworking Over NBMA 
 Working Group of the IETF.                                                

       Title     : ATM Signalling Support for IP over ATM - UNI 4.0 Update 
       Author(s) : M. Maher
       Filename  : draft-ietf-ion-sig-uni4.0-03.txt
       Pages     : 25
       Date      : 05/07/1997

This memo describes how to efficiently use the ATM call control signalling 
procedures defined in UNI 4.0 [UNI96] to support IP over ATM environments 
as described in RFC 1577 [LAUB94] and in [LUC97].   Among the new features 
found in UNI 4.0 signalling are Available Bit Rate (ABR) signalling and 
traffic parameter negotiation.  This draft highlights the features of UNI 
4.0 signalling that provide IP entities capabilities for requesting ATM 
service in sites with SVC support, whether it is private ATM or publicly 
provisioned ATM, in which case the SVC support is probably configured 
inside PVPs.                 
                                           
This document is only relevant to IP when used as the well known "best 
effort" connectionless service. In particular, this means that this 
document does not pertain to IP in the presence of implemented IP 
Integrated Services (ISS).  The topic of IP with ISS over ATM will be 
handled by a different specification or set of specifications being worked 
on in the ISSLL WG.   

This specification is follow-on to RFC 1755, "ATM Signaling Support 
for IP over ATM", which is based on UNI signalling 3.1. 
Readers are assumed to be familiar with RFC 1755.                          

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