module SONET-MIB {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:smiv2:SONET-MIB";

    prefix SONET-MIB;

    import IF-MIB {
      prefix if-mib;
    }
    import PerfHist-TC-MIB {
      prefix perfhist-tc;
    }
    import SNMPv2-TC {
      prefix snmpv2-tc;
    }
    import ietf-yang-smiv2 {
      prefix smiv2;
    }

    organization
      "IETF AToM MIB Working Group";

    contact
      "WG charter:
http://www.ietf.org/html.charters/atommib-charter.html

Mailing Lists:
General Discussion: atommib@research.telcordia.com
To Subscribe: atommib-request@research.telcordia.com

Kaj Tesink
Telcordia Technologies
Tel: (732) 758-5254
Fax: (732) 758-2269
E-mail: kaj@research.telcordia.com.";

    description
      "The MIB module to describe SONET/SDH interface objects.

Copyright (C) The Internet Society (2003).  This version
of this MIB module is part of RFC 3592;  see the RFC
itself for full legal notices.";

    revision "2003-08-11" {
      description
        "The key changes made to this MIB module
since its publication in RFC 2558
are as follows.

(1) Corrected typographical error
    (bellcore1991(2) in sonetSESthresholdSet)

(2) Added support for sts192cSTM64(6) and
    sts768cSTM256(7) in sonetPathCurrentWidth

(3) Corrected description of the applicability
    of VTs for SDH for improved accuracy

(4) Added clarification in the SES description that
    CV counts should be frozen during SESs

(5) Corrected typographical errors:
    - Line Alarm Indication Signal description of the
      Terminology section (20.5 --> 2.5 seconds)
    - In the Terminology section
      sonetSESThresholdSet  --> sonetSESthresholdSet
    ";
    }

    revision "1998-10-19" {
      description
        "The RFC 2558 version of this MIB module.
The key changes made to this MIB module
since its initial publication in RFC 1595
are as follows.

(1) The MODULE-IDENTITY has been updated to reflect the
    changes to the MIB.

(2) Where applicable, the textual conventions
    PerfCurrentCount and PerfIntervalCount from
    PerfHist-TC-MIB have been used in place of Gauge32.

(3) An agent now has the option to delay updates to
    the various performance counts in lieu of performing
    retroactive adjustments upon entering into or exiting
    from unavailable time. This implementation option is
    described in Appendix A of this memo.

(4) In order to make the SONET-MIB more useful for
    circuit provisioning, the formerly read-only objects
    sonetMediumType, sonetMediumLineCoding,
    sonetMediumLineType, and sonetMediumCircuitIdentifier
    have been given a MAX-ACCESS of read-write. The
    MIN-ACCESS remains read-only.

(5) The DESCRIPTION clause for sonetMediumTimeElapsed has
    been updated to describe its behaviour if the duration
    of the current interval exceeds the maximum value.

(6) The DESCRIPTION clause for sonetMediumValidIntervals
    has been updated to describe its behaviour when some
    intervals may be unavailable, and the object
    sonetMediumInvalidIntervals has been added to keep
    count of the number of missing intervals (if any).

(7) The object sonetMediumLoopbackConfig has been added
    to enable or disable loopback configurations.

(8) Because the error count thresholds for declaring
    severely errored seconds that are specified in ANSI
    T1.231-1993, ITU-T G.826-1995, and ANSI T1.231-1997
    are all different from each other and from the thresholds
    specified in RFC 1595, an enumerated INTEGER object
    sonetSESthresholdSet has been added to allow an agent
    to specify which threshold set is in use. Text has
    been added to Section 3 stating that if this object is
    not implemented the thresholds specified in RFC 1595
    should be assumed, and the table containing those
    thresholds has been moved to Appendix B of this memo.

(9) A column with SYNTAX TruthValue has been added to each
    interval table.  The purpose of the additional column
    is to indicate, for each interval, whether the data
    is valid in the sense intended by ANSI T1.231 clause
    9.1.2.2 [T1.231a][T1.231b]. The objects in question are:

	sonetSectionIntervalValidData
	sonetLineIntervalValidData
	sonetFarEndLineIntervalValidData
	sonetPathIntervalValidData
	sonetFarEndPathIntervalValidData
	sonetVTIntervalValidData
	sonetFarEndVTIntervalValidData

(10) The ranges for sonetPathCurrentStatus and
    sonetVTCurrentStatus have been made consistent
    with the DESCRIPTION clauses.

(11) The conformance information has been updated. Previous
    conformance information from RFC 1595 has been
    deprecated. Some typographical errors in the deprecated
    section have been corrected in order to prevent
    MIB compilation errors.";
    }

    revision "1994-01-03" {
      description
        "The RFC 1595 version of this MIB module.";
    }

    smiv2:alias "sonetMIB" {
      smiv2:oid "1.3.6.1.2.1.10.39";
    }
    smiv2:alias "sonetObjects" {
      smiv2:oid "1.3.6.1.2.1.10.39.1";
    }
    smiv2:alias "sonetMedium" {
      smiv2:oid "1.3.6.1.2.1.10.39.1.1";
    }
    smiv2:alias "sonetSection" {
      smiv2:oid "1.3.6.1.2.1.10.39.1.2";
    }
    smiv2:alias "sonetLine" {
      smiv2:oid "1.3.6.1.2.1.10.39.1.3";
    }
    smiv2:alias "sonetFarEndLine" {
      smiv2:oid "1.3.6.1.2.1.10.39.1.4";
    }
    smiv2:alias "sonetObjectsPath" {
      smiv2:oid "1.3.6.1.2.1.10.39.2";
    }
    smiv2:alias "sonetPath" {
      smiv2:oid "1.3.6.1.2.1.10.39.2.1";
    }
    smiv2:alias "sonetFarEndPath" {
      smiv2:oid "1.3.6.1.2.1.10.39.2.2";
    }
    smiv2:alias "sonetObjectsVT" {
      smiv2:oid "1.3.6.1.2.1.10.39.3";
    }
    smiv2:alias "sonetVT" {
      smiv2:oid "1.3.6.1.2.1.10.39.3.1";
    }
    smiv2:alias "sonetFarEndVT" {
      smiv2:oid "1.3.6.1.2.1.10.39.3.2";
    }
    smiv2:alias "sonetConformance" {
      smiv2:oid "1.3.6.1.2.1.10.39.4";
    }
    smiv2:alias "sonetGroups" {
      smiv2:oid "1.3.6.1.2.1.10.39.4.1";
    }
    smiv2:alias "sonetCompliances" {
      smiv2:oid "1.3.6.1.2.1.10.39.4.2";
    }

    container SONET-MIB {
      config false;
      container sonetMedium {
        smiv2:oid "1.3.6.1.2.1.10.39.1.1";
        leaf sonetSESthresholdSet {
          smiv2:max-access "read-write";
          smiv2:oid "1.3.6.1.2.1.10.39.1.1.2";
          type enumeration {
            enum "other" {
              value 1;
            }
            enum "bellcore1991" {
              value 2;
            }
            enum "ansi1993" {
              value 3;
            }
            enum "itu1995" {
              value 4;
            }
            enum "ansi1997" {
              value 5;
            }
          }
          description
            "An enumerated integer indicating which
recognized set of SES thresholds that
the agent uses for determining severely
errored seconds and unavailable time.

other(1)
  None of the following.

bellcore1991(2)
  Bellcore TR-NWT-000253, 1991 [TR253], or
  ANSI T1M1.3/93-005R2, 1993 [T1M1.3].
  See also Appendix B.

ansi1993(3)
  ANSI T1.231, 1993 [T1.231a], or
  Bellcore GR-253-CORE, Issue 2, 1995 [GR253]

itu1995(4)
  ITU Recommendation G.826, 1995 [G.826]

ansi1997(5)
  ANSI T1.231, 1997 [T1.231b]

If a manager changes the value of this
object then the SES statistics collected
prior to this change must be invalidated.";
        }
      }  // container sonetMedium

      container sonetMediumTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.1.1";
        description
          "The SONET/SDH Medium table.";
        list sonetMediumEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Medium table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetMediumType {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.1";
            type enumeration {
              enum "sonet" {
                value 1;
              }
              enum "sdh" {
                value 2;
              }
            }
            description
              "This variable identifies whether a SONET
or a SDH signal is used across this interface.";
          }

          leaf sonetMediumTimeElapsed {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.2";
            type int32 {
              range "1..900";
            }
            description
              "The number of seconds, including partial seconds,
that have elapsed since the beginning of the current
measurement period. If, for some reason, such as an
adjustment in the system's time-of-day clock, the
current interval exceeds the maximum value, the
agent will return the maximum value.";
          }

          leaf sonetMediumValidIntervals {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.3";
            type int32 {
              range "0..96";
            }
            description
              "The number of previous 15-minute intervals
for which data was collected.
A SONET/SDH interface must be capable
of supporting at least n intervals.
The minimum value of n is 4.
The default of n is 32.
The maximum value of n is 96.
The value will be <n> unless the measurement was
(re-)started within the last (<n>*15) minutes, in which
case the value will be the number of complete 15
minute intervals for which the agent has at least
some data. In certain cases (e.g., in the case
where the agent is a proxy) it is possible that some
intervals are unavailable.  In this case, this
interval is the maximum interval number for
which data is available. ";
          }

          leaf sonetMediumLineCoding {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.4";
            type enumeration {
              enum "sonetMediumOther" {
                value 1;
              }
              enum "sonetMediumB3ZS" {
                value 2;
              }
              enum "sonetMediumCMI" {
                value 3;
              }
              enum "sonetMediumNRZ" {
                value 4;
              }
              enum "sonetMediumRZ" {
                value 5;
              }
            }
            description
              "This variable describes the line coding for
this interface. The B3ZS and CMI are used for
electrical SONET/SDH signals (STS-1 and STS-3).
The Non-Return to Zero (NRZ) and the Return
to Zero are used for optical SONET/SDH signals.";
          }

          leaf sonetMediumLineType {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.5";
            type enumeration {
              enum "sonetOther" {
                value 1;
              }
              enum "sonetShortSingleMode" {
                value 2;
              }
              enum "sonetLongSingleMode" {
                value 3;
              }
              enum "sonetMultiMode" {
                value 4;
              }
              enum "sonetCoax" {
                value 5;
              }
              enum "sonetUTP" {
                value 6;
              }
            }
            description
              "This variable describes the line type for
this interface. The line types are
Short and Long Range
Single Mode fiber or Multi-Mode fiber interfaces,
and coax and UTP for electrical interfaces.  The
value sonetOther should be used when the Line Type is
not one of the listed values.";
          }

          leaf sonetMediumCircuitIdentifier {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.6";
            type snmpv2-tc:DisplayString {
              length "0..255";
            }
            description
              "This variable contains the transmission
vendor's circuit identifier, for the
purpose of facilitating troubleshooting.
Note that the circuit identifier, if available,
is also represented by ifPhysAddress.";
          }

          leaf sonetMediumInvalidIntervals {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.7";
            type int32 {
              range "0..96";
            }
            description
              "The number of intervals in the range from
0 to sonetMediumValidIntervals 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).";
          }

          leaf sonetMediumLoopbackConfig {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.1.1.1.1.8";
            type bits {
              bit sonetNoLoop {
                position 0;
              }
              bit sonetFacilityLoop {
                position 1;
              }
              bit sonetTerminalLoop {
                position 2;
              }
              bit sonetOtherLoop {
                position 3;
              }
            }
            description
              "The current loopback state of the SONET/SDH interface.  The
values mean:

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

  sonetFacilityLoop
     The received signal at this interface is looped back
     out through the corresponding transmitter in the return
     direction.

  sonetTerminalLoop
     The signal that is about to be transmitted is connected
     to the associated incoming receiver.

  sonetOtherLoop
     Loopbacks that are not defined here.";
          }
        }  // list sonetMediumEntry
      }  // container sonetMediumTable

      container sonetSectionCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.2.1";
        description
          "The SONET/SDH Section Current table.";
        list sonetSectionCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.2.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Section Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetSectionCurrentStatus {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.1.1.1";
            type int32 {
              range "1..6";
            }
            description
              "This variable indicates the
status of the interface.
The sonetSectionCurrentStatus
is a bit map represented
as a sum, therefore,
it can represent multiple defects
simultaneously.
The sonetSectionNoDefect should be
set if and only if
no other flag is set.

The various bit positions are:
      1   sonetSectionNoDefect
      2   sonetSectionLOS
      4   sonetSectionLOF";
          }

          leaf sonetSectionCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.1.1.2";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Errored
Seconds encountered by a SONET/SDH
Section in the current 15 minute interval.";
          }

          leaf sonetSectionCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH Section in the current 15
minute interval.";
          }

          leaf sonetSectionCurrentSEFSs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Severely Errored Framing Seconds
encountered by a SONET/SDH Section in the current
15 minute interval.";
          }

          leaf sonetSectionCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.1.1.5";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH Section in the current 15 minute interval.";
          }
        }  // list sonetSectionCurrentEntry
      }  // container sonetSectionCurrentTable

      container sonetSectionIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.2.2";
        description
          "The SONET/SDH Section Interval table.";
        list sonetSectionIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1";
          key "ifIndex sonetSectionIntervalNumber";
          description
            "An entry in the SONET/SDH Section Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetSectionIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetSectionIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Errored Seconds encountered
by a SONET/SDH Section in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetSectionIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH Section in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetSectionIntervalSEFSs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Severely Errored Framing Seconds
encountered by a SONET/SDH Section in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetSectionIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH Section in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetSectionIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.2.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetSectionIntervalEntry
      }  // container sonetSectionIntervalTable

      container sonetLineCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.3.1";
        description
          "The SONET/SDH Line Current table.";
        list sonetLineCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.3.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Line Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetLineCurrentStatus {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.1.1.1";
            type int32 {
              range "1..6";
            }
            description
              "This variable indicates the
status of the interface.
The sonetLineCurrentStatus
is a bit map represented
as a sum, therefore,
it can represent multiple defects
simultaneously.
The sonetLineNoDefect should be
set if and only if
no other flag is set.

The various bit positions are:
 1   sonetLineNoDefect
 2   sonetLineAIS
 4   sonetLineRDI";
          }

          leaf sonetLineCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.1.1.2";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Errored
Seconds encountered by a SONET/SDH
Line in the current 15 minute interval.";
          }

          leaf sonetLineCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH Line in the current 15
minute
interval.";
          }

          leaf sonetLineCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH Line in the current 15 minute interval.";
          }

          leaf sonetLineCurrentUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.1.1.5";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Unavailable Seconds
encountered by a SONET/SDH Line in the current 15
minute
interval.";
          }
        }  // list sonetLineCurrentEntry
      }  // container sonetLineCurrentTable

      container sonetLineIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.3.2";
        description
          "The SONET/SDH Line Interval table.";
        list sonetLineIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1";
          key "ifIndex sonetLineIntervalNumber";
          description
            "An entry in the SONET/SDH Line Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetLineIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetLineIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Errored Seconds encountered
by a SONET/SDH Line in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetLineIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH Line in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetLineIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH Line in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetLineIntervalUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the
number of Unavailable Seconds
encountered by a SONET/SDH Line in
a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetLineIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.3.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetLineIntervalEntry
      }  // container sonetLineIntervalTable

      container sonetFarEndLineCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.4.1";
        description
          "The SONET/SDH Far End Line Current table.";
        list sonetFarEndLineCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.4.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Far End Line Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetFarEndLineCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.1.1.1";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Far
End Errored Seconds encountered by a SONET/SDH
interface in the current 15 minute interval.";
          }

          leaf sonetFarEndLineCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.1.1.2";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Severely Errored Seconds
encountered by a SONET/SDH Medium/Section/Line
interface in the current 15 minute
interval.";
          }

          leaf sonetFarEndLineCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Coding Violations reported via
the far end block error count
encountered by a
SONET/SDH Medium/Section/Line
interface in the current 15 minute interval.";
          }

          leaf sonetFarEndLineCurrentUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Unavailable Seconds
encountered by a
SONET/SDH Medium/Section/Line
interface in the current 15 minute interval.";
          }
        }  // list sonetFarEndLineCurrentEntry
      }  // container sonetFarEndLineCurrentTable

      container sonetFarEndLineIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.1.4.2";
        description
          "The SONET/SDH Far End Line Interval table.";
        list sonetFarEndLineIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1";
          key "ifIndex sonetFarEndLineIntervalNumber";
          description
            "An entry in the SONET/SDH Far
End Line Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetFarEndLineIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetFarEndLineIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Errored Seconds encountered
by a SONET/SDH Line
interface in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndLineIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Severely Errored Seconds
encountered by a SONET/SDH Line
interface in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndLineIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Coding Violations reported via
the far end block error count
encountered by a
SONET/SDH Line
interface in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndLineIntervalUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Unavailable Seconds
encountered by a
SONET/SDH Line
interface in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndLineIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.1.4.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetFarEndLineIntervalEntry
      }  // container sonetFarEndLineIntervalTable

      container sonetPathCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.2.1.1";
        description
          "The SONET/SDH Path Current table.";
        list sonetPathCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Path Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetPathCurrentWidth {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1.1";
            type enumeration {
              enum "sts1" {
                value 1;
              }
              enum "sts3cSTM1" {
                value 2;
              }
              enum "sts12cSTM4" {
                value 3;
              }
              enum "sts24c" {
                value 4;
              }
              enum "sts48cSTM16" {
                value 5;
              }
              enum "sts192cSTM64" {
                value 6;
              }
              enum "sts768cSTM256" {
                value 7;
              }
            }
            description
              "A value that indicates the type of the SONET/SDH
Path.  For SONET, the assigned types are
the STS-Nc SPEs, where N = 1, 3, 12, 24, 48, 192 and 768.
STS-1 is equal to 51.84 Mbps.  For SDH, the assigned
types are the STM-Nc VCs, where N = 1, 4, 16, 64 and 256.";
          }

          leaf sonetPathCurrentStatus {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1.2";
            type int32 {
              range "1..62";
            }
            description
              "This variable indicates the
status of the interface.
The sonetPathCurrentStatus
is a bit map represented
as a sum, therefore,
it can represent multiple defects
simultaneously.
The sonetPathNoDefect should be
set if and only if
no other flag is set.

The various bit positions are:
   1   sonetPathNoDefect
   2   sonetPathSTSLOP
   4   sonetPathSTSAIS
   8   sonetPathSTSRDI
  16   sonetPathUnequipped
  32   sonetPathSignalLabelMismatch";
          }

          leaf sonetPathCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Errored
Seconds encountered by a SONET/SDH
Path in the current 15 minute interval.";
          }

          leaf sonetPathCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH Path in the current 15
minute
interval.";
          }

          leaf sonetPathCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1.5";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH Path in the current 15 minute interval.";
          }

          leaf sonetPathCurrentUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.1.1.6";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Unavailable Seconds
encountered by a Path in the current
15 minute interval.";
          }

          leaf cspSonetPathPayload {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.4.1.9.9.126.1.7.1.1.1";
            type enumeration {
              enum "unequipped" {
                value 1;
              }
              enum "unspecified" {
                value 2;
              }
              enum "ds3" {
                value 3;
              }
              enum "vt15vc11" {
                value 4;
              }
              enum "vt2vc12" {
                value 5;
              }
              enum "atmCell" {
                value 6;
              }
              enum "hdlcFr" {
                value 7;
              }
              enum "e3" {
                value 8;
              }
              enum "vtStructured" {
                value 9;
              }
            }
            description
              "Specifies the payload carried by the SONET/SDH Path.
The payload specification corresponds to C2 (Signal Label)
overhead byte in SONET/SDH Path Overhead:
unequipped(1)    : Path is not provisioned to carry any payload.
unspecified(2)   : Path is carrying an unspecifed payload.
ds3(3)           : Path is carrying a DS3 path as payload.
vt15vc11(4)      : Path is carrying SONET-VT1.5/SDH-VC11 payload.
vt2vc12(5)       : Path is carrying SONET-VT2/SDH-VC12 as payload.
atmCell(6)       : Path is carrying ATM Cells as payload.
hdlcFr(7)        : Path is carrying Frame Relay (HDLC) payload.
e3(8)            : Path is carrying an E3 path as payload.
vtStructured(9)  : Path is carrying VTGs/TUG3s/TUG2s which may
		   each carry a different payload.
A write operation on this object will result in update to
C2 overhead byte in the Path Overhead.";
            reference
              "Telcordia GR-253, ITU G.707";

          }

          leaf cspTributaryMappingType {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.4.1.9.9.126.1.7.1.1.2";
            type enumeration {
              enum "asynchronous" {
                value 1;
              }
              enum "byteSynchronous" {
                value 2;
              }
            }
            description
              "This object represents the VT/VC mapping type.
asynchronous: In this mode, the channel structure of
	      DS1/E1 is neither visible nor preserved.

byteSynchronous: In this mode, the DS0 signals inside
		 the VT/VC can be found and extracted
		 from the frame.
The initial value is asynchronous(1).";
          }

          leaf cspSignallingTransportMode {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.4.1.9.9.126.1.7.1.1.3";
            type enumeration {
              enum "notApplicable" {
                value 1;
              }
              enum "signallingTransferMode" {
                value 2;
              }
              enum "clearMode" {
                value 3;
              }
            }
            description
              "This object represents the mode used to transport DS0
Signalling information for T1 byteSynchronous mapping
(GR253).
In signallingTransferMode(2), the robbed-bit signalling
is transferred to the VT header. In clearMode(3), only
the framing bit is transferred to the VT header.

The initial value is signallingTransferMode(2)
if csTributaryMappingType is byteSynchronous.
For asynchronous mapping, it is
notApplicable(1).

The value notApplicable(1) can not be set.";
          }

          leaf cspTributaryGroupingType {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.4.1.9.9.126.1.7.1.1.4";
            type enumeration {
              enum "notApplicable" {
                value 1;
              }
              enum "au3Grouping" {
                value 2;
              }
              enum "au4Grouping" {
                value 3;
              }
            }
            description
              "This object represents the method used to group VCs into
an STM-1 signal. Applicable only to SDH.

au3Grouping: STM1<-AU-3<-TUG-2<-TU-12<-VC12 or
	     STM1<-AU-3<-TUG-2<-TU-11<-VC11.

au4Grouping: STM1<-AU-4<-TUG-3<-TUG-2<-TU-12<-VC12 or
	     STM1<-AU-4<-TUG-3<-TUG-2<-TU-11<-VC11.

The initial value is au3Grouping(2) for SDH and
notApplicable(1) for SONET.";
            reference
              "ITU-T,G707, Section 6 Basic Multiplexing Priciples";

          }
        }  // list sonetPathCurrentEntry
      }  // container sonetPathCurrentTable

      container sonetPathIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.2.1.2";
        description
          "The SONET/SDH Path Interval table.";
        list sonetPathIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1";
          key "ifIndex sonetPathIntervalNumber";
          description
            "An entry in the SONET/SDH Path Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetPathIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetPathIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Errored Seconds encountered
by a SONET/SDH Path in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetPathIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH Path in
a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetPathIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH Path in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetPathIntervalUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Unavailable Seconds
encountered by a Path in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetPathIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.1.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetPathIntervalEntry
      }  // container sonetPathIntervalTable

      container sonetFarEndPathCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.2.2.1";
        description
          "The SONET/SDH Far End Path Current table.";
        list sonetFarEndPathCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.2.2.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Far End Path Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetFarEndPathCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.1.1.1";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Far
End Errored Seconds encountered by a SONET/SDH
interface in the current 15 minute interval.";
          }

          leaf sonetFarEndPathCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.1.1.2";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Severely Errored Seconds
encountered by a SONET/SDH Path
interface in the current 15 minute
interval.";
          }

          leaf sonetFarEndPathCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Coding Violations reported via
the far end block error count
encountered by a
SONET/SDH Path interface in
the current 15 minute interval.";
          }

          leaf sonetFarEndPathCurrentUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Unavailable Seconds
encountered by a
SONET/SDH Path interface in
the current 15 minute interval.";
          }
        }  // list sonetFarEndPathCurrentEntry
      }  // container sonetFarEndPathCurrentTable

      container sonetFarEndPathIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.2.2.2";
        description
          "The SONET/SDH Far End Path Interval table.";
        list sonetFarEndPathIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1";
          key "ifIndex sonetFarEndPathIntervalNumber";
          description
            "An entry in the SONET/SDH Far
End Path Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetFarEndPathIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetFarEndPathIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Errored Seconds encountered
by a SONET/SDH Path interface in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndPathIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Severely Errored Seconds
encountered by a SONET/SDH Path interface
in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndPathIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Coding Violations reported via
the far end block error count
encountered by a
SONET/SDH Path interface
in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndPathIntervalUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Unavailable Seconds
encountered by a
SONET/SDH Path interface in
a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndPathIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.2.2.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetFarEndPathIntervalEntry
      }  // container sonetFarEndPathIntervalTable

      container sonetVTCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.3.1.1";
        description
          "The SONET/SDH VT Current table.";
        list sonetVTCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH VT Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetVTCurrentWidth {
            smiv2:max-access "read-write";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1.1";
            type enumeration {
              enum "vtWidth15VC11" {
                value 1;
              }
              enum "vtWidth2VC12" {
                value 2;
              }
              enum "vtWidth3" {
                value 3;
              }
              enum "vtWidth6VC2" {
                value 4;
              }
              enum "vtWidth6c" {
                value 5;
              }
            }
            description
              "A value that indicates the type of the SONET
VT and SDH VC.  Assigned widths are
VT1.5/VC11, VT2/VC12, VT3, VT6/VC2, and VT6c.";
          }

          leaf sonetVTCurrentStatus {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1.2";
            type int32 {
              range "1..126";
            }
            description
              "This variable indicates the
status of the interface.
The sonetVTCurrentStatus
is a bit map represented
as a sum, therefore,
it can represent multiple defects
and failures
simultaneously.
The sonetVTNoDefect should be
set if and only if
no other flag is set.

The various bit positions are:
   1   sonetVTNoDefect
   2   sonetVTLOP
   4   sonetVTPathAIS
   8   sonetVTPathRDI
  16   sonetVTPathRFI
  32   sonetVTUnequipped
  64   sonetVTSignalLabelMismatch";
          }

          leaf sonetVTCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Errored
Seconds encountered by a SONET/SDH
VT in the current 15 minute interval.";
          }

          leaf sonetVTCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH VT in the current 15 minute
interval.";
          }

          leaf sonetVTCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1.5";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH VT in the current 15 minute interval.";
          }

          leaf sonetVTCurrentUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.1.1.6";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Unavailable Seconds
encountered by a VT in the current
15 minute interval.";
          }
        }  // list sonetVTCurrentEntry
      }  // container sonetVTCurrentTable

      container sonetVTIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.3.1.2";
        description
          "The SONET/SDH VT Interval table.";
        list sonetVTIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1";
          key "ifIndex sonetVTIntervalNumber";
          description
            "An entry in the SONET/SDH VT Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetVTIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetVTIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Errored Seconds encountered
by a SONET/SDH VT in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetVTIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Severely Errored Seconds
encountered by a SONET/SDH VT
in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetVTIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of Coding
Violations encountered by a
SONET/SDH VT in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetVTIntervalUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Unavailable Seconds
encountered by a VT in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetVTIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.1.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetVTIntervalEntry
      }  // container sonetVTIntervalTable

      container sonetFarEndVTCurrentTable {
        smiv2:oid "1.3.6.1.2.1.10.39.3.2.1";
        description
          "The SONET/SDH Far End VT Current table.";
        list sonetFarEndVTCurrentEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.3.2.1.1";
          key "ifIndex";
          description
            "An entry in the SONET/SDH Far End VT Current table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetFarEndVTCurrentESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.1.1.1";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of Far
End Errored Seconds encountered by a SONET/SDH
interface in the current 15 minute interval.";
          }

          leaf sonetFarEndVTCurrentSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.1.1.2";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Severely Errored Seconds
encountered by a SONET/SDH VT interface
in the current 15 minute
interval.";
          }

          leaf sonetFarEndVTCurrentCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.1.1.3";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Coding Violations reported via
the far end block error count
encountered by a
SONET/SDH VT interface
in the current 15 minute interval.";
          }

          leaf sonetFarEndVTCurrentUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.1.1.4";
            type perfhist-tc:PerfCurrentCount;
            description
              "The counter associated with the number of
Far End Unavailable Seconds
encountered by a
SONET/SDH VT interface
in the current 15 minute interval.";
          }
        }  // list sonetFarEndVTCurrentEntry
      }  // container sonetFarEndVTCurrentTable

      container sonetFarEndVTIntervalTable {
        smiv2:oid "1.3.6.1.2.1.10.39.3.2.2";
        description
          "The SONET/SDH Far End VT Interval table.";
        list sonetFarEndVTIntervalEntry {
          smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1";
          key "ifIndex sonetFarEndVTIntervalNumber";
          description
            "An entry in the SONET/SDH Far
End VT Interval table.";
          leaf ifIndex {
            type leafref {
              path "/if-mib:IF-MIB/if-mib:ifTable/if-mib:ifEntry/if-mib:ifIndex";
            }
          }

          leaf sonetFarEndVTIntervalNumber {
            smiv2:max-access "not-accessible";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1.1";
            type int32 {
              range "1..96";
            }
            description
              "A number between 1 and 96, which identifies the
interval for which the set of statistics is available.
The interval identified by 1 is the most recently
completed 15 minute interval,
and the interval identified
by N is the interval immediately preceding the
one identified
by N-1.";
          }

          leaf sonetFarEndVTIntervalESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1.2";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Errored Seconds encountered
by a SONET/SDH VT interface
in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndVTIntervalSESs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1.3";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Severely Errored Seconds
encountered by a SONET/SDH VT interface
in a particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndVTIntervalCVs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1.4";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Coding Violations reported via
the far end block error count
encountered by a
SONET/SDH VT interface in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndVTIntervalUASs {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1.5";
            type perfhist-tc:PerfIntervalCount;
            description
              "The counter associated with the number of
Far End Unavailable Seconds
encountered by a
SONET/SDH VT interface in a
particular 15-minute interval
in the past 24 hours.";
          }

          leaf sonetFarEndVTIntervalValidData {
            smiv2:max-access "read-only";
            smiv2:oid "1.3.6.1.2.1.10.39.3.2.2.1.6";
            type boolean;
            description
              "This variable indicates if the data for this
interval is valid.";
          }
        }  // list sonetFarEndVTIntervalEntry
      }  // container sonetFarEndVTIntervalTable
    }  // container SONET-MIB
  }  // module SONET-MIB