CSA CAN/CSA-ISO/IEC 13247-01

Abstract

This International Standard defines the signalling protocol for the purpose of basic call/connection control at the Q reference Point between Private Integrated Services Network Exchanges (PINXs) connected together within a Broadband Private Integrated Services Network (B-PISN) employing Asynchronous Transfer Mode (ATM). This International Standard is gart of the B-QSIG signalling System. <br>The Q reference Point is defined in ISO/IEC 11579-1. <br>This International Standard is an application of the signalling protocol that forms part of the ATM Forum's PNNI 1 .O specification, which in turn is based on ITU-T Recommendation 4.293 1, including the provisions for symmetrical Operation described in annex H of recommendation Q.293 1. Technical differentes compared with the signalling protocol specified in PNNI 1 .O are summarized in annex J. Guidelines for interworking between a network employing the signalling protocol specified in this International Standard and a network employing the ATM Forum's PNNI 1.0 specification are given in annex L. <br>This International Standard is applicable to PINXs which interconnect to form a B-PISN using static hop-by-hop routeing. It therefore complements the ATM Forum's PNNI 1.0 specification, which is applicable to networks that employ dynamic Source routeing. <br>The basic capabilities supported by the protocol specified in this International Standard are listed below and described in more detail in annex F: <br>- demand (switched) virtual channel and virtual path connections; <br>- Point-to-Point switched virtual channel and virtual path connections; <br>- Point-to-multipoint virtual channel connections; <br>- connections with symmetric or asymmetric bandwidth requirements; <br>- Single-connection (Point-to-Point) calls; <br>- basic signalling functions via protocol messages, information elements, and procedures; <br>- CBR, VBR (realtime and non-realtime), UBR and ABR Service categories; <br>- negotiation of certain signalling Parameters; <br>- inter-PINX virtual channel identifier (IPVCI) negotiation; <br>- out-of-band signalling for all signalling messages; <br>- error recovery; <br>- B-PISN addressing formats; <br>- end-to-end compatibility Parameter identification; <br>- signalling interworking with N-PISN and Provision of N-PISN Services; <br>- forward compatibility; <br>- call/connection handling at different types of PINX, including Transit PINX, Originating PINX, Terminating PINX, Incoming Gateway PINX, Outgoing Gateway PINX and Interworking PINX; <br>- Signalling of individual QOS Parameters <br>-&#160;ATM anycast addresses <br>- Negotiation of ATM traffit descriptors <br>- Soft PVPC and PVCC support <br>- Generic Identifier Transport