-- Extracted from rfc2494.txt
--
-- Network Working Group                               D. Fowler, Editor
-- Request for Comments: 2494                         Newbridge Networks
-- Category: Standards Track                                January 1999

--                     Definitions of Managed Objects
--               for the DS0 and DS0 Bundle Interface Type

DS0-MIB DEFINITIONS ::= BEGIN

IMPORTS
    MODULE-IDENTITY, OBJECT-TYPE,
    transmission                     FROM SNMPv2-SMI
    MODULE-COMPLIANCE, OBJECT-GROUP  FROM SNMPv2-CONF
    DisplayString, TruthValue        FROM SNMPv2-TC
    ifIndex, InterfaceIndex,
    InterfaceIndexOrZero             FROM IF-MIB;

--  This is the MIB module for the DS0 Interface objects.

ds0 MODULE-IDENTITY
   LAST-UPDATED "9807161630Z"
   ORGANIZATION "IETF Trunk MIB Working Group"
   CONTACT-INFO
     "        David Fowler

      Postal: Newbridge Networks Corporation
              600 March Road
              Kanata, Ontario, Canada K2K 2E6

              Tel: +1 613 591 3600
              Fax: +1 613 599 3619

      E-mail: davef@newbridge.com"
   DESCRIPTION
        "The MIB module to describe
         DS0 interfaces objects."
   REVISION "9805242010Z"
   DESCRIPTION
        "Initial version of the DS0-MIB."

   ::= { transmission 81 }

-- The DS0 Config Group

-- Implementation of this group is mandatory for all
-- systems that use a DS0 Interface.

-- The DS0 Config Group consists of two tables:
--    DS0 Configuration Table
--    DS0 Channel Mapping Table

-- The DS0 Configuration Table

dsx0ConfigTable OBJECT-TYPE
   SYNTAX  SEQUENCE OF Dsx0ConfigEntry
   MAX-ACCESS  not-accessible
   STATUS  current
   DESCRIPTION
           "The DS0 Configuration table."
   ::= { ds0 1 }

dsx0ConfigEntry OBJECT-TYPE
   SYNTAX  Dsx0ConfigEntry
   MAX-ACCESS  not-accessible
   STATUS  current
   DESCRIPTION
           "An entry in the DS0 Configuration table.  There
           is an entry in this table for each DS0 interface."
   INDEX   { ifIndex }
   ::= { dsx0ConfigTable 1 }

Dsx0ConfigEntry ::=
   SEQUENCE {
       dsx0Ds0ChannelNumber        INTEGER,
       dsx0RobbedBitSignalling     TruthValue,
       dsx0CircuitIdentifier       DisplayString,
       dsx0IdleCode                INTEGER,
       dsx0SeizedCode              INTEGER,
       dsx0ReceivedCode            INTEGER,
       dsx0TransmitCodesEnable     TruthValue,
       dsx0Ds0BundleMappedIfIndex  InterfaceIndexOrZero
}

dsx0Ds0ChannelNumber OBJECT-TYPE
   SYNTAX  INTEGER(0..31)
   MAX-ACCESS  read-only
   STATUS  current
   DESCRIPTION
           "This object indicates the channel number of the
           ds0 on its DS1/E1."
   ::= { dsx0ConfigEntry 1 }

dsx0RobbedBitSignalling OBJECT-TYPE
   SYNTAX  TruthValue
   MAX-ACCESS  read-write
   STATUS  current
   DESCRIPTION
           "This object indicates if Robbed Bit Signalling is
           turned on or off for a given ds0.  This only
           applies to DS0s on a DS1 link.  For E1 links the
           value is always off (false)."
   ::= { dsx0ConfigEntry 2 }

dsx0CircuitIdentifier OBJECT-TYPE
    SYNTAX  DisplayString (SIZE (0..255))
    MAX-ACCESS  read-write
    STATUS  current
    DESCRIPTION
           "This object contains the transmission vendor's
           circuit identifier, for the purpose of
           facilitating troubleshooting."
   ::= { dsx0ConfigEntry 3 }

dsx0IdleCode OBJECT-TYPE
    SYNTAX  INTEGER(0..15)
    MAX-ACCESS  read-write
    STATUS  current
    DESCRIPTION
           "This object contains the code transmitted in the
           ABCD bits when the ds0 is not connected and
           dsx0TransmitCodesEnable is enabled.  The object is
           a bitmap and the various bit positions are:
                 1     D bit
                 2     C bit
                 4     B bit
                 8     A bit"
   ::= { dsx0ConfigEntry 4 }

dsx0SeizedCode OBJECT-TYPE
    SYNTAX  INTEGER(0..15)
    MAX-ACCESS  read-write
    STATUS  current
    DESCRIPTION
           "This object contains the code transmitted in the
           ABCD bits when the ds0 is connected and
           dsx0TransmitCodesEnable is enabled.  The object is
           a bitmap and the various bit positions are:
                 1     D bit
                 2     C bit
                 4     B bit
                 8     A bit"
   ::= { dsx0ConfigEntry 5 }

dsx0ReceivedCode OBJECT-TYPE
    SYNTAX  INTEGER(0..15)
    MAX-ACCESS  read-only
    STATUS  current
    DESCRIPTION
           "This object contains the code being received in
           the ABCD bits.  The object is a bitmap and the
           various bit positions are:
                 1     D bit
                 2     C bit
                 4     B bit
                 8     A bit"
   ::= { dsx0ConfigEntry 6 }

dsx0TransmitCodesEnable OBJECT-TYPE
    SYNTAX TruthValue
    MAX-ACCESS  read-write
    STATUS  current
    DESCRIPTION
           "This object determines if the idle and seized
           codes are transmitted. If the value of this object
           is true then the codes are transmitted."
   ::= { dsx0ConfigEntry 7 }

dsx0Ds0BundleMappedIfIndex OBJECT-TYPE
    SYNTAX InterfaceIndexOrZero
    MAX-ACCESS  read-only
    STATUS  current
    DESCRIPTION
           "This object indicates the ifIndex value assigned
           by the agent for the ds0Bundle(82) ifEntry to
           which the given ds0(81) ifEntry may belong.

           If the given ds0(81) ifEntry does not belong to
           any ds0Bundle(82) ifEntry, then this object has a
           value of zero.

           While this object provides information that can
           also be found in the ifStackTable, it provides
           this same information with a single table lookup,
           rather than by walking the ifStackTable to find
           the possibly non-existent ds0Bundle(82) ifEntry
           that may be stacked above the given ds0(81)
           ifTable entry."
   ::= { dsx0ConfigEntry 8 }

-- The DS0 Channel Mapping Table

dsx0ChanMappingTable OBJECT-TYPE
    SYNTAX  SEQUENCE OF Dsx0ChanMappingEntry
    MAX-ACCESS  not-accessible
    STATUS  current
    DESCRIPTION
           "The DS0 Channel Mapping table.  This table maps a
           DS0 channel number on a particular DS1/E1 into an
           ifIndex."
    ::= { ds0 3 }

dsx0ChanMappingEntry OBJECT-TYPE
    SYNTAX  Dsx0ChanMappingEntry
    MAX-ACCESS  not-accessible
    STATUS  current
    DESCRIPTION
           "An entry in the DS0 Channel Mapping table.  There
           is an entry in this table corresponding to each
           ds0 ifEntry within any interface that is
           channelized to the individual ds0 ifEntry level.

           This table is intended to facilitate mapping from
           channelized interface / channel number to DS0
           ifEntry.  (e.g. mapping (DS1 ifIndex, DS0 Channel
           Number) -> ifIndex)

           While this table provides information that can
           also be found in the ifStackTable and
           dsx0ConfigTable, it provides this same information
           with a single table lookup, rather than by walking
           the ifStackTable to find the various constituent
           ds0 ifTable entries, and testing various
           dsx0ConfigTable entries to check for the entry
           with the applicable DS0 channel number."
    INDEX   { ifIndex, dsx0Ds0ChannelNumber }
    ::= { dsx0ChanMappingTable 1 }

Dsx0ChanMappingEntry ::=
    SEQUENCE {
        dsx0ChanMappedIfIndex  InterfaceIndex
}

dsx0ChanMappedIfIndex OBJECT-TYPE
    SYNTAX  InterfaceIndex
    MAX-ACCESS  read-only
    STATUS  current
    DESCRIPTION
           "This object indicates the ifIndex value assigned
           by the agent for the individual ds0 ifEntry that
           corresponds to the given DS0 channel number
           (specified by the INDEX element
           dsx0Ds0ChannelNumber) of the given channelized
           interface (specified by INDEX element ifIndex)."
    ::= { dsx0ChanMappingEntry 1 }

-- conformance information

ds0Conformance OBJECT IDENTIFIER ::= { ds0 2 }

ds0Groups      OBJECT IDENTIFIER ::= { ds0Conformance 1 }
ds0Compliances OBJECT IDENTIFIER ::= { ds0Conformance 2 }



-- compliance statements

ds0Compliance MODULE-COMPLIANCE
   STATUS  current
   DESCRIPTION
           "The compliance statement for DS0 interfaces."
   MODULE  -- this module
       MANDATORY-GROUPS { ds0ConfigGroup }

       OBJECT dsx0RobbedBitSignalling
       MIN-ACCESS read-only
       DESCRIPTION
           "The ability to set RBS is not required."
       OBJECT dsx0CircuitIdentifier
       MIN-ACCESS read-only
       DESCRIPTION
           "The ability to set the circuit identifier is not
           required."

       OBJECT dsx0IdleCode
       MIN-ACCESS read-only
       DESCRIPTION
           "The ability to set the idle code is not
           required."

       OBJECT dsx0SeizedCode
       MIN-ACCESS read-only
       DESCRIPTION
           "The ability to set the seized code is not
           required."

       OBJECT dsx0TransmitCodesEnable
       MIN-ACCESS read-only
       DESCRIPTION
           "The ability to enable and disable the
           transmitting of idle and seized codes is not
           required."

   ::= { ds0Compliances 1 }

-- units of conformance

ds0ConfigGroup  OBJECT-GROUP
   OBJECTS { dsx0Ds0ChannelNumber,
             dsx0RobbedBitSignalling,
             dsx0CircuitIdentifier,
             dsx0IdleCode,
             dsx0SeizedCode,
             dsx0ReceivedCode,
             dsx0TransmitCodesEnable,
             dsx0Ds0BundleMappedIfIndex,
             dsx0ChanMappedIfIndex }
   STATUS  current
   DESCRIPTION
           "A collection of objects providing configuration
           information applicable to all DS0 interfaces."
   ::= { ds0Groups 1 }

END

