rfc1232.mib

wm PNE 3.3 source code, running at more than vxworks6.x version.

          RFC1232-MIB DEFINITIONS ::= BEGIN

          IMPORTS
                  experimental, Counter
                          FROM RFC1155-SMI
                  DisplayString
                          FROM SNMPv2-TC
                  OBJECT-TYPE
                          FROM RFC-1212;

          --  This MIB module uses the extended OBJECT-TYPE macro as
          --  defined in [13].


          --  this is the MIB module for ds1 objects

          ds1 OBJECT IDENTIFIER ::= { experimental 2 }

          -- the DS1 Configuration group
          -- Although the objects in this group are read-only, at the
          -- agent's discretion they may be made read-write so that the
          -- management station, when appropriately authorized, may
          -- change the behavior of the CSU, e.g., to place the device
          -- into a loopback state or emit a QRSS BER test.

          -- Implementation of this group is mandatory for all systems
          -- that attach to a ds1.

          ds1ConfigTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF DS1ConfigEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "The DS1 Configuration table."
              ::= { ds1 1 }

          ds1ConfigEntry OBJECT-TYPE
              SYNTAX  DS1ConfigEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "An entry in the DS1 Configuration table."
              INDEX   { ds1CSUIndex }
              ::= { ds1ConfigTable 1 }

          DS1ConfigEntry ::=
              SEQUENCE {
                  ds1CSUIndex
                      INTEGER,
                  ds1Index
                      INTEGER,
                  ds1TimeElapsed
                      INTEGER (1..900),
                  ds1ValidIntervals
                      INTEGER (0..96),
                  ds1LineType
                      INTEGER,
                  ds1ZeroCoding
                      INTEGER,
                  ds1Loopback
                      INTEGER,
                  ds1SendCode
                      INTEGER,
                  ds1YellowAlarm
                      INTEGER,
                  ds1RedAlarm
                      INTEGER,
                  ds1CircuitIdentifier
                      DisplayString (SIZE (0..255))
          }

          ds1CSUIndex OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The index value which uniquely identifies the CSU
                      to which this entry is applicable."
              ::= { ds1ConfigEntry 1 }

          ds1Index OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "An index value that uniquely identifies an
                      interface to a ds1.  The interface identified by a
                      particular value of this index is the same
                      interface as identified by the same value an
                      ifIndex object instance."
              ::= { ds1ConfigEntry 2 }

          ds1TimeElapsed OBJECT-TYPE
              SYNTAX  INTEGER (1..900)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The number of seconds that have elapsed since the
                      beginning of the current error-measurement period.
                      Any fraction is rounded up."
              ::= { ds1ConfigEntry 3 }

          ds1ValidIntervals OBJECT-TYPE
              SYNTAX  INTEGER (0..96)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The number of previous intervals for which valid
                      data was collected.  The value will be 96 unless
                      the CSU device was brought online within the last
                      24 hours, in which case the value will be the
                      number of complete 15 minute intervals the CSU has
                      been online."
              ::= { ds1ConfigEntry 4 }

          ds1LineType OBJECT-TYPE
              SYNTAX  INTEGER {
                          other(1),
                          ds1ESF(2),
                          ds1D4(3),
                          ds1ANSI-ESF(4),
                          ds1G704(5),
                          ds1G704-CRC(6)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This variable indicates the variety of DS1 Line
                      implementing this circuit.  The type of circuit
                      affects the number of bits per second that the
                      circuit can reasonably carry, as well as the
                      interpretation of the usage and error statistics.

                      The values, in sequence, describe:
                      TITLE:       SPECIFICATION:
                      ds1ESF        AT&T Extended SuperFrame DS1 [10]
                      ds1D4         AT&T D4 format DS1 [16], [17]
                      ds1ANSI-ESF   ANSI Extended SuperFrame format [14]
                      ds1G704       CCITT Recommendation G.704 [12]
                                      (section 2.1.3.2)
                      ds1G704-CRC   CCITT Recommendation G.704 [12]
                                      (section 2.1.3.1)
                      "
              ::= { ds1ConfigEntry 5 }

          ds1ZeroCoding OBJECT-TYPE
              SYNTAX  INTEGER {
                          ds1JammedBit(1),
                          ds1B8ZS(2),
                          ds1InvertedHDLC(3),
                          ds1HDB3(4),
                          ds1ZBTSI(5)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This variable describes the variety of Zero Code
                      Suppression used on the link, which in turn
                      affects a number of its characteristics.

                      ds1JammedBit refers the Jammed bit Zero Encoding,
                      in which the AT&T specification of at least one
                      pulse every 8 bit periods is literally implemented
                      by forcing a pulse in bit 8 of each channel.
                      Thus, only seven bits per channel, or 1.344 Mbps,
                      is available for data.

                      ds1B8ZS refers to the use of a specified pattern
                      of normal bits and bipolar violations which are
                      used to replace a sequence of eight zero bits (see
                      [14]).  In this context, all eight bits in a
                      channel are technically available for data, but
                      care must be taken with D4 encoded data to avoid
                      having HDLC Flag streams imitate spurious Yellow
                      Alarm conditions.  Typically, one bit per frame is
                      ignored to force flag streams to rotate, thereby
                      avoiding this error type.  CCITT Recommendation
                      G.703 [11] may be referred to for further
                      definition of these.

                      ds1InvertedHDLC refers to the practice, common on
                      HDLC encoded DS1 data links, of inverting the data
                      between the serial interface chip and the CSU.
                      Since HDLC guarantees one zero every 6 bits in the
                      worst case, while the standards call for (in
                      effect) at least one pulse every eight, inverted
                      HDLC enjoys 4/24 one's density on the line, which
                      may improve the effective clock stability of a DS1
                      line.  As with B8ZS, all eight bits in a channel
                      are technically available for data, but care must
                      be taken with D4 encoded data to avoid having HDLC
                      Flag streams imitate spurious Yellow Alarm
                      conditions.  Typically, one bit per frame is
                      ignored to force flag streams to rotate, thereby
                      avoiding this error type.

                      ANSI Clear Channels may use ds1ZBTSI, or Zero Byte
                      Time Slot Interchange (see [14]).

                      G.704 links, with or without CRC, use ds1HDB3 (see
                      [11]).  "
              ::= { ds1ConfigEntry 6 }

          ds1Loopback OBJECT-TYPE
              SYNTAX  INTEGER {
                          ds1NoLoop(1),
                          ds1LocalLoopbackLocalSide(2),
                          ds1LocalLoopbackRemoteSide(3),
                          ds1RemoteLoopbackLocalSide(4),
                          ds1RemoteLoopbackRemoteSide(5)
                      }

              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This variable represents the loopback state of
                      the CSU.  Devices supporting read/write access
                      should return badValue in response to a requested
                      loopback state that the CSU does not support.  The
                      values mean:

                      ds1NoLoop

                         Not in the loopback state.  A device that is
                         not capable of performing a loopback on either
                         interface shall always return this as it's
                         value.

                      ds1LocalLoopbackLocalSide

                         Signal received from the local side of the
                         device is looped back at the local connector
                         (eg, without involving the CSU).

                      ds1LocalLoopbackRemoteSide

                         Signal received from the local side of the
                         device is looped back at the remote connector
                         (eg, through the CSU).

                      ds1RemoteLoopbackLocalSide

                         Signal received from the remote side of the
                         device is looped back at the local connector
                         (eg, through the CSU).

                      ds1RemoteLoopbackRemoteSide

                         Signal received from the remote side of the
                         device is looped back at the remote connector
                         (eg, without involving the CSU)."
              ::= { ds1ConfigEntry 7 }

          ds1SendCode OBJECT-TYPE
              SYNTAX  INTEGER {
                          ds1OtherTest(1),
                          ds1SendNoCode(2),
                          ds1SendSetCode(3),
                          ds1SendResetCode(4),
                          ds1SendQRSS(5)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                 "This variable indicates what type of code is
                 being sent across the DS1 circuit by the CSU.  The
                 values mean:

                 ds1SendNoCode    sending looped or normal data
                 ds1SendSetCode   sending a loopback request
                 ds1SendResetCode sending a loopback termination request
                 ds1SendQRSS      sending the BERT pattern described in
                                  ANSI T1.403-1989 section 5.6
                 ds1OtherTest     sending a different BERT/BLERT pattern,
                                  such as all zeroes, all ones, etc."
              ::= { ds1ConfigEntry 8 }

          ds1YellowAlarm OBJECT-TYPE
              SYNTAX  INTEGER {
                          ds1NoYellowAlarm (1),
                          ds1YellowAlarm (2)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This variable indicates if a Yellow Alarm
                      condition exists.

                      Note that G.704 interfaces do not support Yellow
                      Alarms.  Accordingly, such agents should return
                      the value ds1NoYellowAlarm."
              ::= { ds1ConfigEntry 9 }