AAL for their connectivity (e.g., IP or an ordinary SS7 connectivity stratum). A large number of adaptation standards, both within the context of AAL and of the SS7 adaptation stratum are therefore emerging. SSCOP is used for purposes other than supporting B-ISDN as well. For example, it is used in an OSI-AAL for supporting an OSI network (according to ITU-T X.213), which seems some- what superfluous. The SSCF in this AAL is specified in ITU-T 1.365.2. Appendix A: List of Acronyms and Standards This list contains all standard acronyms and relevant standard references to net- work systems that have been discussed or mentioned in the book (which still is a very small set of all standards that define those systems). ATM Adaptation Layer 1 ITU-T 1.363.1, B-ISDN ATM Adaptation Layer Specification: Type 1 AAL ATM Adaptation Layer 2 ITU-T I.363.2, B-ISDN ATM Adaptation Layer Specification: Type 2 AAL ATM Adaptation Layer 5 ITU-T 1.363.5, B-ISDN ATM Adaptation Layer Specification: Type 5 AAL Association Control Service Element ITU-T X.217 describes the service. The protocol is describe in ITU-T X.227 Abstract Modeling Language, network view Abstract Modeling Language, protocol view Abstract Modeling Language, service view ASN.1 Abstract Syntax Notation No. 1 ITU-T X.208, Specification of Abstract Syntax Notation One (ASN.1) Asynchronous Transfer Mode ITU-T I.361, B-ISDN ATM Layer Specification (the ATM switching protocol specification) ITU-T I.311, I.371, 1.610, ATM switching-layer management Basic Encoding Rules ITU-T X.209 Border Gateway Protocol IETF RFC 1654, A Border Gateway protocol 4 IETF RFC 1268, Application of the Border Gateway Protocol in the Internet B-ISDN Broadband ISDN ITU-T I.121, Broadband Aspects of ISDN, and many other recommendations in the I.- and Q.2000 series Basic Rate Access ITU-T 1.430, ISDN User-Network Interfaces: Layer 1 Recommendation Common Management Information Protocol ITU-TX.711, CMIP specification Common Management Information Service. ITU-T X.710. Connection-less Connection-oriented 