CISCO-IDSL-LINE-MIB
This MIB module describes IDSL (ISDN Digital Line Subscriber) line interfaces. The structure of this module resembles that of the ADSL-LINE-MIB (RFC-2662). Observe that the tables in this module do not necessarily extend the tables defined by the ADSL-LINE-MIB. Currently, only those tables that contain configuration information extend the profile tables defined by the ADSL-LINE-MIB. This allows the management client to define xDSL configuration profiles that apply across all xDSL modems, independent of the technology being utilized by the modem. *** ABBREVIATIONS, ACRONYMS, AND SYMBOLS *** ADSL - Asymmetric Digital Subscriber Line. ATM - Asynchronous Transfer Mode. BRITE - Basic Rate Interface Terminal Extender. CV - Coding Violation. DLC - Data Link Connection. DSL - Digital Subscriber Line. ES - Error Second. IDSL - IDSN Digital Subscriber Loop. ITU-C - IDSL Transceiver Unit, Central Office end. ITU-R - IDSL Transceiver Unit, Remote terminal end. LMI - Link Management Interface. LOF - Loss Of Frame. LOS - Loss Of Signal. NT - Network Terminator. PPP - Point-to-Point Protocol. PPPoA - PPP over ATM. SES - Severely Errored Second. *** DEFINITIONS *** CODING VIOLATION A coding violation occurs when the incoming signal exhibits a CRC anomaly. DOWNSTREAM The flow of data in the direction from the ITU-C to ITU-R. ERRORED SECOND A second with one or more coding violations. LINE RATE The total data rate supported by a line. Observe that the payload rate is equal the line rate for the earliest implementations of IDSL. However, the payload rate maybe less than the line rate for future implementations. SEVERELY ERRORED SECOND A second with 3 or more coding violations. UPSTREAM The flow of data in the direction from the ATU-R to ATU-C.