RFC 2495 (rfc2495) - Page 2 of 75

Definitions of Managed Objects for the DS1, E1, DS2 and E2 Interface Types

RFC 2495                   DS1/E1/DS2/E2 MIB                January 1999


   2.4.1 Error Events .............................................   12
   2.4.2 Performance Defects ......................................   12
   2.4.3 Performance Parameters ...................................   14
   2.4.4 Failure States ...........................................   17
   2.4.5 Other Terms ..............................................   21
   3 Object Definitions ...........................................   21
   3.1 The DS1 Near End Group .....................................   22
   3.1.1 The DS1 Configuration Table ..............................   22
   3.1.2 The DS1 Current Table ....................................   33
   3.1.3 The DS1 Interval Table ...................................   36
   3.1.4 The DS1 Total Table ......................................   39
   3.1.5 The DS1 Channel Table ....................................   42
   3.2 The DS1 Far End Group ......................................   43
   3.2.1 The DS1 Far End Current Table ............................   43
   3.2.2 The DS1 Far End Interval Table ...........................   47
   3.2.3 The DS1 Far End Total Table ..............................   50
   3.3 The DS1 Fractional Table ...................................   53
   3.4 The DS1 Trap Group .........................................   55
   3.5 Conformance Groups .........................................   61
   4 Appendix A - Use of dsx1IfIndex and dsx1LineIndex ............   66
   5 Appendix B - The delay approach to Unavialable Seconds.  .....   69
   6 Intellectual Property ........................................   70
   7 Acknowledgments ..............................................   70
   8 References ...................................................   71
   9 Security Considerations ......................................   73
   10 Author's Address ............................................   74
   11 Full Copyright Statement ....................................   75

1.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

    o   An overall architecture, described in RFC 2271 [1].

    o   Mechanisms for describing and naming objects and events for the
        purpose of management. The first version of this Structure of
        Management Information (SMI) is called SMIv1 and described in
        STD 16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The
        second version, called SMIv2, is described in RFC 1902 [5], RFC
        1903 [6] and RFC 1904 [7].

    o   Message protocols for transferring management information. The
        first version of the SNMP message protocol is called SNMPv1 and
        described in STD 15, RFC 1157 [8]. A second version of the SNMP
        message protocol, which is not an Internet standards track
        protocol, is called SNMPv2c and described in RFC 1901 [9] and
        RFC 1906 [10].  The third version of the message protocol is



Fowler, Ed.                 Standards Track