Signalling with the x-ATM Protocol Toolkit
نویسندگان
چکیده
x-ATM is a portable toolkit of Asynchronous Transfer Mode (ATM) protocols implemented in a general purpose communications kernel (the x-kernel). The toolkit provides an environment for experimentation with ATM adaptation layers, interoperable ATM signalling, IP over ATM, and real time transport protocols. The x-kernel permits easy composability and promotes protocol modularity, thus x-ATM protocol modules may be arbitrarily layered on top of anchor protocols that represent diierent hardware devices. This supports x-ATM's protocol suite portability across many diierent platforms. The Unixx21] version of the toolkit currently has hardware support for Fore Systems SBA-100 host adapters, ASX-100 ATM switch and Fore ATM API, as well as the iPointt16] experimental ATM switch, with support for other hardware platforms planned. The toolkit may be used to implement ATM signalling entities used in ATM switch controllers and hosts with ATM adapters. In our experience, x-ATM has proven to be a exible tool in our implementation of switch controllers and interoperable signalling protocols for these platforms.
منابع مشابه
ATM Signalling Support for IP over ATM - UNI Signalling 4.0 Update
Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This memo describes how to effic...
متن کاملAn Euro ISDN PRI / ATM INTERWORKING UNIT ARCHITECTURE
This paper discusses the architecture and mechanisms of an Interworking Unit (IWU) which interconnects the Euro ISDN Primary Rate Interface with the ATM Network, ensuring the network and service interoperability between the two networks. The user plane (user information) and the control plane (signalling) are encountered separately, because of the different types of information they handle. Oth...
متن کاملVerifying Multiparty Call in ATM UNI Signalling Protocol
This paper presents formal specification and verification of the multiparty call in ATM UNI signalling protocol. The protocol specification is written in the CCS process algebra (Calculus of Communicating Systems). Verification is done by using the NCSU-Concurrency Workbench. Due to the complexity of the protocol, the model is decomposed into three components. The protocol is verified by the mo...
متن کاملVC Management for Heterogeneous QoS Multicast Transmissions
A crucial component of the interaction between ATM’s and the Internet’s Quality of Servcice (QoS) architectures is the efficient mapping of RSVP (Resource reSerVation Protocol) as the Internet’s signalling protocol onto the according ATM mechanisms. In particular, this article focuses on one of the most contrary characteristics of RSVP and ATM signalling. This is the support for heterogeneous r...
متن کامل\Classical" RSVP and IP over ATM
Integrated Services in the Internet is rapidly becoming a reality. Meanwhile , ATM technology is appearing in the marketplace. It is an important problem to integrate ATM networks into this emerging Integrated Services Internet. \Classical" IP over ATMM9, 10] is now widely deployed, eeectively solving the problem of \best eeort service" in internets with ATM links. A key remaining issue is to p...
متن کامل