rfc1694.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

              ::= { sipDS3PLCPTable 1 }

          SipDS3PLCPEntry  ::= SEQUENCE {
              sipDS3PLCPIndex       IfIndex,
              sipDS3PLCPSEFSs       Counter32,
              sipDS3PLCPAlarmState  INTEGER,
              sipDS3PLCPUASs        Counter32
              }

          sipDS3PLCPIndex  OBJECT-TYPE
              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the
                 interface for which this entry contains management
                 information.  "
              ::= { sipDS3PLCPEntry 1 }



Brown & Tesink                                                 [Page 19]

RFC 1694                 SMDS Interface Objects              August 1994


          sipDS3PLCPSEFSs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "A DS3 Severely Errored Framing Second (SEFS) is a
                 count of one-second intervals containing one or
                 more SEF events.  A Severely Errored Framing (SEF)
                 event is declared when an error in the A1 octet
                 and an error in the A2 octet of a framing octet
                 pair (i.e., errors in both framing octets), or two
                 consecutive invalid and/or nonsequential Path
                 Overhead Identifier octets are detected."
              ::= { sipDS3PLCPEntry 2 }

          sipDS3PLCPAlarmState OBJECT-TYPE
              SYNTAX  INTEGER     {
                          noAlarm (1),
                          receivedFarEndAlarm (2),
                          incomingLOF (3)
                      }
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "This variable indicates if there is an alarm
                 present for the DS3 PLCP.  The value
                 receivedFarEndAlarm means that the DS3 PLCP has
                 received an incoming Yellow Signal, the value
                 incomingLOF means that the DS3 PLCP has declared a
                 loss of frame (LOF) failure condition, and the
                 value noAlarm means that there are no alarms
                 present.  See TR-TSV-000773 for a description of
                 alarm states."
              ::= { sipDS3PLCPEntry 3 }

          sipDS3PLCPUASs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The counter associated with the number of
                 Unavailable Seconds, as defined by TR-TSV-000773,
                 encountered by the PLCP."
              ::= { sipDS3PLCPEntry 4 }


          -- The SMDS Applications group
          -- Applications that have been identified for this group are:



Brown & Tesink                                                 [Page 20]

RFC 1694                 SMDS Interface Objects              August 1994


          --          * IP-over-SMDS (details are specified in RFC 1209)

          smdsApplications OBJECT IDENTIFIER ::= { sip 4 }

          ipOverSMDS OBJECT IDENTIFIER ::= { smdsApplications 1 }

          -- 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 addressing information related to the
          -- configuration of a logical IP subnetwork implemented on
          -- top of SMDS.

          -- This table is necessary to support RFC1209 (IP-over-SMDS)
          -- and gives information on the Group Addresses and ARP
          -- Addresses used in the Logical IP subnetwork.
          -- One SMDS address may be associated with multiple IP
          -- addresses.  One SNI may be associated with multiple LISs.

          ipOverSMDSTable OBJECT-TYPE
              SYNTAX      SEQUENCE OF IpOverSMDSEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "The table of addressing information relevant to
                 this entity's IP addresses."
              ::= { ipOverSMDS 1 }

          ipOverSMDSEntry OBJECT-TYPE
              SYNTAX      IpOverSMDSEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "The addressing information for one of this
                 entity's IP addresses."
              INDEX   { ipOverSMDSIndex, ipOverSMDSAddress }
              ::= { ipOverSMDSTable 1 }

          IpOverSMDSEntry ::=
              SEQUENCE {
                 ipOverSMDSIndex       IfIndex,
                 ipOverSMDSAddress     IpAddress,
                 ipOverSMDSHA          SMDSAddress,
                 ipOverSMDSLISGA       SMDSAddress,
                 ipOverSMDSARPReq      SMDSAddress
                 }

          ipOverSMDSIndex OBJECT-TYPE



Brown & Tesink                                                 [Page 21]

RFC 1694                 SMDS Interface Objects              August 1994


              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the
                 interface for which this entry contains management
                 information. "
              ::= { ipOverSMDSEntry 1 }

          ipOverSMDSAddress OBJECT-TYPE
               SYNTAX      IpAddress
               MAX-ACCESS  read-only
               STATUS      current
               DESCRIPTION
                 "The IP address to which this entry's addressing
                 information pertains."
              ::= { ipOverSMDSEntry 2 }

          ipOverSMDSHA OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The SMDS Individual address of the IP station."
              ::= { ipOverSMDSEntry 3 }

          ipOverSMDSLISGA OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The SMDS Group Address that has been configured
                 to identify the SMDS Subscriber-Network Interfaces
                 (SNIs) of all members of the Logical IP Subnetwork
                 (LIS) connected to the network supporting SMDS."
              ::= { ipOverSMDSEntry 4 }

          ipOverSMDSARPReq OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The SMDS address (individual or group) to which
                 ARP Requests are to be sent."
              ::= { ipOverSMDSEntry 5 }


          -- The SMDS Carrier Selection group



Brown & Tesink                                                 [Page 22]

RFC 1694                 SMDS Interface Objects              August 1994


          -- This group is used as a place holder
          -- for carrier selection objects.

          smdsCarrierSelection OBJECT IDENTIFIER ::= { sip 5 }


          -- The SIP Error Log

          sipErrorLog OBJECT IDENTIFIER ::= { sip 6 }

          sipL3PDUErrorTable OBJECT-TYPE
              SYNTAX      SEQUENCE OF SipL3PDUErrorEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "A table that contains the latest occurrence of
                 the following syntactical SIP L3PDU errors:

                 - Destination Address Field Format Error,

                 The following pertains to the 60 least significant
                 bits of the 64 bit address field.  The 60 bits
                 contained in the address subfield can be used to
                 represent addresses up to 15 decimal digits.  Each
                 decimal digit shall be encoded into four bits
                 using Binary Coded Decimal (BCD), with the most
                 significant digit occurring left-most.  If not all
                 15 digits are required, then the remainder of this
                 field shall be padded on the right with bits set
                 to one.  An error is considered to have occurred:
                 a).  if the first four bits of the address
                 subfield are not BCD, OR b).  if the first four
                 bits of the address subfield are populated with
                 the country code value 0001, AND the 40 bits which
                 follow are not Binary Coded Decimal (BCD) encoded
                 values of the 10 digit addresses, OR the remaining
                 16 least significant bits are not populated with
                 1's, OR c).  if the address subfield is not
                 correct according to another numbering plan which
                 is dependent upon the carrier assigning the
                 numbers and offering SMDS.

                 - Source Address Field Format Error,

                 The description of this parameter is the same as
                 the description of the Destination Address Field
                 Format Error.




Brown & Tesink                                                 [Page 23]

RFC 1694                 SMDS Interface Objects              August 1994


                 - Invalid BAsize Field Value,

                 An error is considered to have occurred when the
                 BAsize field of an SIP L3PDU contains a value less
                 that 32, greater than 9220 octets without the
                 CRC32 field present, greater than 9224 octets with
                 the CRC32 field present, or not equal to a
                 multiple of 4 octets,

                 - Invalid Header Extension Length Field Value,

                 An error is considered to have occurred when the
                 Header Extension Length field value is not equal
                 3.

                 - Invalid Header Extension - Element Length,

                 An error is considered to have occurred when the
                 Header Extension - Element Length is greater than
                 12.

                 - Invalid Header Extension - Version Element
                 Position, Length, or Value,

                 An error is considered to have occurred when a
                 Version element with Length=3, Type=0, and Value=1
                 does not appear first within the Header Extension,
                 or an element Type=0 appears somewhere other than
                 within the first three octets in the Header
                 Extension.

                 - Invalid Header Extension - Carrier Selection
                 Element Position, Length, Value or Format,

                 An error is considered to have occurred when a
                 Carrier Selection element does not appear second
                 within the Header Extension, if the Element Type
                 does not equal 1, the Element Length does not
                 equal 4, 6, or 8, the Element Value field is not
                 four BCD encoded decimal digits used in specifying
                 the Carrier Identification Code (CIC), or the
                 identified CIC code is invalid.

                 - Header Extension PAD Error

                 An error is considered to have occurred when the
                 Header Extension PAD is 9 octets in length, or if
                 the Header Extension PAD is greater than zero



Brown & Tesink                                                 [Page 24]

RFC 1694                 SMDS Interface Objects              August 1994


                 octets in length and the Header Extension PAD does
                 not follow all Header Extension elements or does
                 not begin with at least one octet of all zeros.

                 - BEtag Mismatch Error,

                 An error is considered to have occurred when the
                 Beginning-End Tags in the SIP L3PDU header and
                 trailer are not equal.

                 - BAsize Field not equal to Length Field Error,

                 An error is considered to have occurred when the
                 value of the BAsize Field does not equal the value
                 of the Length Field.

                 - Incorrect Length Error, and

                 An error is considered to have occurred when the
                 the Length field value is not equal to the portion
                 of the SIP L3PDU which extends from the
                 Destination Address field up to and including the
                 CRC32 field (if present) or up to and including
                 the PAD field (if the CRC32 field is not present).
                 As an optional check, an error is considered to
                 have occurred when the length of a partially
                 received SIP L3PDU exceeds the BAsize value.

                 - MRI Timeout Error.

                 An error is considered to have occurred when the
                 elapsed time between receipt of BOM and
                 corresponding EOM exceeds the value of the MRI
                 (Message Receive Interval) for a particular
                 transport signal format.

                 An entry is indexed by interface number and error
                 type, and contains Source Address, Destination
                 Address and a timestamp. All these errors are
                 counted in the sipL3Errors counter.  When
                 sipL3PDUErrorTimeStamp is equal to zero, the
                 SipL3PDUErrorEntry does not contain any valid