rfc2496.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

                     e3Plcp(8)
                 }
          MAX-ACCESS  read-write
          STATUS  current
          DESCRIPTION
                 "This variable indicates the variety of DS3 C-bit
                 or E3 application implementing this interface. The
                 type of interface affects the interpretation of
                 the usage and error statistics.  The rate of DS3
                 is 44.736 Mbps and E3 is 34.368 Mbps.  The
                 dsx3ClearChannel value means that the C-bits are
                 not used except for sending/receiving AIS.
                 The values, in sequence, describe:

                 TITLE:            SPECIFICATION:
                 dsx3M23            ANSI T1.107-1988 [9]
                 dsx3SYNTRAN        ANSI T1.107-1988 [9]
                 dsx3CbitParity     ANSI T1.107a-1990 [9a]
                 dsx3ClearChannel   ANSI T1.102-1987 [8]
                 e3Framed           CCITT G.751 [12]
                 e3Plcp             ETSI T/NA(91)18 [13]."
          ::= { dsx3ConfigEntry 5 }

     dsx3LineCoding OBJECT-TYPE
          SYNTAX  INTEGER {
                     dsx3Other(1),
                     dsx3B3ZS(2),
                     e3HDB3(3)
                 }
          MAX-ACCESS  read-write
          STATUS  current
          DESCRIPTION
                 "This variable describes the variety of Zero Code
                 Suppression used on this interface, which in turn
                 affects a number of its characteristics.

                 dsx3B3ZS and e3HDB3 refer to the use of specified
                 patterns of normal bits and bipolar violations
                 which are used to replace sequences of zero bits
                 of a specified length."
          ::= { dsx3ConfigEntry 6 }




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RFC 2496                      DS3/E3 MIB                    January 1999


     dsx3SendCode OBJECT-TYPE
          SYNTAX  INTEGER {
                    dsx3SendNoCode(1),
                    dsx3SendLineCode(2),
                    dsx3SendPayloadCode(3),
                    dsx3SendResetCode(4),
                    dsx3SendDS1LoopCode(5),
                    dsx3SendTestPattern(6)
                    }
          MAX-ACCESS  read-write
          STATUS  current
          DESCRIPTION
                 "This variable indicates what type of code is
                 being sent across the DS3/E3 interface by the
                 device.  (These are optional for E3 interfaces.)
                 Setting this variable causes the interface to
                 begin sending the code requested.
                 The values mean:

                    dsx3SendNoCode
                        sending looped or normal data

                    dsx3SendLineCode
                        sending a request for a line loopback

                    dsx3SendPayloadCode
                        sending a request for a payload loopback
                        (i.e., all DS1/E1s in a DS3/E3 frame)

                    dsx3SendResetCode
                        sending a loopback deactivation request

                    dsx3SendDS1LoopCode
                        requesting to loopback a particular DS1/E1
                        within a DS3/E3 frame.  The DS1/E1 is
                        indicated in dsx3Ds1ForRemoteLoop.

                    dsx3SendTestPattern
                        sending a test pattern."
          ::= { dsx3ConfigEntry 7 }

     dsx3CircuitIdentifier OBJECT-TYPE
          SYNTAX  DisplayString (SIZE (0..255))
          MAX-ACCESS  read-write
          STATUS  current
          DESCRIPTION
                 "This variable contains the transmission vendor's
                 circuit identifier, for the purpose of



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RFC 2496                      DS3/E3 MIB                    January 1999


                 facilitating troubleshooting."
          ::= { dsx3ConfigEntry 8 }

     dsx3LoopbackConfig OBJECT-TYPE
          SYNTAX  INTEGER {
                      dsx3NoLoop(1),
                      dsx3PayloadLoop(2),
                      dsx3LineLoop(3),
                      dsx3OtherLoop(4),
                      dsx3InwardLoop(5),
                      dsx3DualLoop(6)
                    }
          MAX-ACCESS  read-write
          STATUS  current
          DESCRIPTION
               "This variable represents the desired loopback
               configuration of the DS3/E3 interface.

               The values mean:

               dsx3NoLoop
                 Not in the loopback state.  A device that is
                 not capable of performing a loopback on
                 the interface shall always return this as
                 its value.

               dsx3PayloadLoop
                 The received signal at this interface is looped
                 through the device.  Typically the received signal
                 is looped back for retransmission after it has
                 passed through the device's framing function.

               dsx3LineLoop
                 The received signal at this interface does not
                 go through the device (minimum penetration) but
                 is looped back out.

               dsx3OtherLoop
                 Loopbacks that are not defined here.

               dsx3InwardLoop
                 The sent signal at this interface is looped back
                 through the device.

               dsx3DualLoop
                 Both dsx1LineLoop and dsx1InwardLoop will be
                 active simultaneously."
          ::= { dsx3ConfigEntry 9 }



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RFC 2496                      DS3/E3 MIB                    January 1999


     dsx3LineStatus OBJECT-TYPE
          SYNTAX  INTEGER (1..4095)
          MAX-ACCESS  read-only
          STATUS  current
          DESCRIPTION
                 "This variable indicates the Line Status of the
                 interface.  It contains loopback state information
                 and failure state information.  The dsx3LineStatus
                 is a bit map represented as a sum, therefore, it
                 can represent multiple failures and a loopback
                 (see dsx3LoopbackConfig object for the type of
                 loopback) simultaneously.  The dsx3NoAlarm must be
                 set if and only if no other flag is set.

                 If the dsx3loopbackState bit is set, the loopback
                 in effect can be determined from the
                 dsx3loopbackConfig object.
       The various bit positions are:
        1     dsx3NoAlarm         No alarm present
        2     dsx3RcvRAIFailure   Receiving Yellow/Remote
                                  Alarm Indication
        4     dsx3XmitRAIAlarm    Transmitting Yellow/Remote
                                  Alarm Indication
        8     dsx3RcvAIS          Receiving AIS failure state
       16     dsx3XmitAIS         Transmitting AIS
       32     dsx3LOF             Receiving LOF failure state
       64     dsx3LOS             Receiving LOS failure state
      128     dsx3LoopbackState   Looping the received signal
      256     dsx3RcvTestCode     Receiving a Test Pattern
      512     dsx3OtherFailure    any line status not defined
                                  here
     1024     dsx3UnavailSigState Near End in Unavailable Signal
                                  State
     2048     dsx3NetEquipOOS     Carrier Equipment Out of Service"
     ::= { dsx3ConfigEntry 10 }

dsx3TransmitClockSource OBJECT-TYPE
     SYNTAX  INTEGER {
                loopTiming(1),
                localTiming(2),
                throughTiming(3)
            }
     MAX-ACCESS  read-write
     STATUS  current
     DESCRIPTION
            "The source of Transmit Clock.

            loopTiming indicates that the recovered receive clock



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RFC 2496                      DS3/E3 MIB                    January 1999


            is used as the transmit clock.

            localTiming indicates that a local clock source is used
            or that an external clock is attached to the box
            containing the interface.

            throughTiming indicates that transmit clock is derived
            from the recovered receive clock of another DS3
            interface."
          ::= { dsx3ConfigEntry 11 }

     dsx3InvalidIntervals OBJECT-TYPE
          SYNTAX  INTEGER (0..96)
          MAX-ACCESS  read-only
          STATUS  current
          DESCRIPTION
                      "The number of intervals in the range from 0 to
                 dsx3ValidIntervals for which no data is
                 available.  This object will typically be zero
                 except in cases where the data for some intervals
                 are not available (e.g., in proxy situations)."
          ::= { dsx3ConfigEntry 12 }

     dsx3LineLength OBJECT-TYPE
          SYNTAX  INTEGER (0..64000)
          UNITS "meters"
          MAX-ACCESS  read-write
          STATUS  current
          DESCRIPTION
                 "The length of the ds3 line in meters.  This
                 object provides information for line build out
                 circuitry if it exists and can use this object to
                 adjust the line build out."
          ::= { dsx3ConfigEntry 13 }

     dsx3LineStatusLastChange OBJECT-TYPE
          SYNTAX  TimeStamp
          MAX-ACCESS  read-only
          STATUS  current
          DESCRIPTION
                 "The value of MIB II's sysUpTime object at the
                 time this DS3/E3 entered its current line status
                 state.  If the current state was entered prior to
                 the last re-initialization of the proxy-agent,
                 then this object contains a zero value."
          ::= { dsx3ConfigEntry 14 }

     dsx3LineStatusChangeTrapEnable  OBJECT-TYPE



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RFC 2496                      DS3/E3 MIB                    January 1999


          SYNTAX      INTEGER {
                         enabled(1),
                         disabled(2)
                      }
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
                 "Indicates whether dsx3LineStatusChange traps
                 should be generated for this interface."
          DEFVAL { disabled }
          ::= { dsx3ConfigEntry 15 }

     dsx3LoopbackStatus  OBJECT-TYPE
          SYNTAX      INTEGER (1..127)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
                 "This variable represents the current state of the
                 loopback on the DS3 interface.  It contains
                 information about loopbacks established by a
                 manager and remotely from the far end.

                 The dsx3LoopbackStatus is a bit map represented as
                 a sum, therefore is can represent multiple
                 loopbacks simultaneously.

                 The various bit positions are:
                  1  dsx3NoLoopback
                  2  dsx3NearEndPayloadLoopback
                  4  dsx3NearEndLineLoopback
                  8  dsx3NearEndOtherLoopback
                 16  dsx3NearEndInwardLoopback
                 32  dsx3FarEndPayloadLoopback
                 64  dsx3FarEndLineLoopback"

     ::= { dsx3ConfigEntry 16 }

     dsx3Channelization  OBJECT-TYPE
          SYNTAX      INTEGER {
                         disabled(1),
                         enabledDs1(2),
                         enabledDs2(3)
                      }
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
                 "Indicates whether this ds3/e3 is channelized or
                 unchannelized.  The value of enabledDs1 indicates



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RFC 2496                      DS3/E3 MIB                    January 1999


                 that this is a DS3 channelized into DS1s.  The
                 value of enabledDs3 indicated that this is a DS3
                 channelized into DS2s.  Setting this object will
                 cause the creation or deletion of DS2 or DS1
                 entries in the ifTable.  "
     ::= { dsx3ConfigEntry 17 }

     dsx3Ds1ForRemoteLoop  OBJECT-TYPE
          SYNTAX      INTEGER (0..29)