path: root/MIBS/transition/TN-ERPS-MIB

-- *****************************************************************
-- TN-ERPS-MIB.my : TN Ethernet Ring Protection Switch MIB
--
-- Author : Tony Lei
-- update by Angela Xing
-- Copyright (c) 2009 by Transition Networks, Inc.
-- All rights reserved.
--
-- *************************************************************************************************
--

TN-ERPS-MIB DEFINITIONS ::= BEGIN

IMPORTS
    MODULE-IDENTITY,
    NOTIFICATION-TYPE,
    OBJECT-TYPE,
    Unsigned32,
    Gauge32
        FROM SNMPv2-SMI
    MODULE-COMPLIANCE,
    OBJECT-GROUP,
    NOTIFICATION-GROUP
        FROM SNMPv2-CONF
    RowStatus,TruthValue,
    MacAddress,
    DisplayString
        FROM SNMPv2-TC     -- [RFC2579]  
    VlanId
        FROM Q-BRIDGE-MIB
    InterfaceIndex
        FROM IF-MIB
    Dot1agCfmMepId
    FROM IEEE8021-CFM-MIB
    tnProducts
        FROM TRANSITION-SMI
    tnProtectionMIB
        FROM TN-PROTECTION-MIB;
--
-- main body
--

tnERPSMIB       OBJECT IDENTIFIER ::= { tnProtectionMIB 3 }

tnERPSMIBNotifications  OBJECT IDENTIFIER ::= { tnERPSMIB 1 }
tnERPSMgmtObjects       OBJECT IDENTIFIER ::= { tnERPSMIB 2 }
tnERPSMIBConformance  OBJECT IDENTIFIER ::= { tnERPSMIB 3 }

-- Textual Conventions

-- ******************************************************************
-- NOTIFICATIONS (TRAPS)
-- These notifications will be sent to the management entity
-- whenever a ERPS Node loses/restores contact with the adjacent ring nodes.
-- ******************************************************************
tnErpsAlarmDown NOTIFICATION-TYPE
    OBJECTS     { 
                  tnERPSState,
                  tnERPSStatePort0,
                  tnERPSStatePort1,
                  tnERPSStateRPLUnBlocked,
                  tnERPSStateNoApsReceived,
                  tnERPSStatePort0Blockstatus,
                  tnERPSStatePort1Blockstatus
                }
    STATUS      current
    DESCRIPTION
       "A ERPS has a persistent defect condition. A notification
        (fault alarm) is sent to the management entity with the OID
        of the ERPS that has detected the fault.

        The management entity receiving the notification can identify
        the system from the network source address of the
        notification, and can identify the ERPS reporting the defect
        by the indices in the OID of the variables in the notification:

           tnErpsInstance - Also the index of the ERPS state table entry
                              (tnERPSStateTable).
       "
     ::= { tnERPSMIBNotifications 2 }

tnErpsAlarmUp NOTIFICATION-TYPE
    OBJECTS     { 
                  tnERPSState,
                  tnERPSStatePort0,
                  tnERPSStatePort1,
                  tnERPSStateRPLUnBlocked,
                  tnERPSStateNoApsReceived,
                  tnERPSStatePort0Blockstatus,
                  tnERPSStatePort1Blockstatus
                }
    STATUS      current
    DESCRIPTION
       "A ERPS has cleared a defect condition. A notification
        (fault clearance alarm) is sent to the management entity with the OID
        of the ERPS that has cleared the fault.

        The management entity receiving the notification can identify
        the system from the network source address of the
        notification, and can identify the ERPS reporting the alarm
        by the indices in the OID of the variables in the notification:

           tnErpsInstance - Also the index of the ERPS state table entry
                              (tnERPSStateTable).
       "
     ::= { tnERPSMIBNotifications 1 }


-- ******************************************************************
-- EPRS table 
tnERPSTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table displays and sets current Ethernet Protection Switching configurations.
        "
    ::= { tnERPSMgmtObjects 1 }

tnERPSEntry OBJECT-TYPE
    SYNTAX          TnERPSEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an Ethernet Ring Protection Switching configuration."
    INDEX           { tnERPSinstance }
    ::= { tnERPSTable 1 }

TnERPSEntry ::= SEQUENCE {
        tnERPSinstance             Unsigned32,
        tnERPSPort0                INTEGER,
        tnERPSPort1                INTEGER,
        tnERPSPort0ApsMep          INTEGER,
        tnERPSPort1ApsMep          INTEGER,
        tnERPSPort0SfMep           INTEGER,
        tnERPSPort1SfMep           INTEGER,
        tnERPSRingType             INTEGER,
        tnERPSInterconnectednode   TruthValue,
        tnERPSVirtualChannel       TruthValue,
        tnERPSMajorRingID          INTEGER,
        tnERPSAlarm                INTEGER,
        tnERPSRowStatus               RowStatus
}

tnERPSinstance OBJECT-TYPE
     SYNTAX     Unsigned32(1..4294967295)
     MAX-ACCESS not-accessible
     STATUS     current
     DESCRIPTION
        "The ID of the ERPS.
        "
    ::= { tnERPSEntry 1 }

tnERPSPort0 OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "This will create a Port 0 of the switch in the ring.
        "
    ::= { tnERPSEntry 2 }

tnERPSPort1  OBJECT-TYPE
    SYNTAX         INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "This will create 'Port 1' of the switch in the Ring. 
        As interconnected sub-ring will have only one ring port, 
        'Port 1' is configured as '0' for interconnected sub-ring.
        '0' in this field indicates that no 'Port 1' is associated with this instance
        "
    ::= { tnERPSEntry 3 }

tnERPSPort0ApsMep OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "The Port 0 APS PDU handling MEP.
         "
    ::= { tnERPSEntry 4 }

tnERPSPort1ApsMep OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "The Port 1 APS PDU handling MEP. As only one APS MEP is associated with interconnected 
         sub-ring without virtual channel, it is configured as '0' for such ring instances. 
        '0' in this field indicates that no Port 1 APS MEP is associated with this instance.  
         "
    ::= { tnERPSEntry 5 }
          
tnERPSPort0SfMep OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "The Port 0 Signal Fail reporting MEP.
         "
    ::= { tnERPSEntry 6 }
    
tnERPSPort1SfMep OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "The Port 1 Signal Fail reporting MEP.
         "
    ::= { tnERPSEntry 7 }

tnERPSRingType OBJECT-TYPE
    SYNTAX          INTEGER{
                       major (1),
                       sub   (2)
                    }
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "Type of Protecting ring. It can be either major ring or sub-ring. As per G.8032v2,
        they are defined as :
             Major Ring: A Major ring is the Ethernet ring that is connected on two ports to 
                         an interconnection node.
             Sub Ring :A sub-ring is an Ethernet ring which is connected to (an)other Ethernet
                       ring(s) or network(s) through the use of a pair of interconnection nodes. 
                       On their own, the sub-ring links do not form a closed loop. 
                       A closed connection of traffic may be formed by the sub-ring links and 
                       one or more links, that are controlled by (an)other Ethernet ring(s) or network(s),
                       between interconnection nodes
         "
    ::= { tnERPSEntry 8 }

tnERPSInterconnectednode OBJECT-TYPE
    SYNTAX          TruthValue
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "Interconnected Node indicates that the ring instance is interconnected. 
         Click on the checkbox to configure this. 
         'True' indicates it is an interconnected node for this instance. 
         'False' indicates that the configured instance is not interconnected.
         "
    ::= { tnERPSEntry 9 }

tnERPSVirtualChannel OBJECT-TYPE
    SYNTAX          TruthValue
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "Sub-rings can either have virtual channel or not on the interconnected node.
         'True' indicates it is a sub-ring with virtual channel. 
         'False' indicates, sub-ring doesn't have virtual channel.
         "
    ::= { tnERPSEntry 10 }

tnERPSMajorRingID OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "Major ring group ID for the interconnected sub-ring. 
         It is used to send topology change updates on major ring. 
         If ring is major, this value is same as the protection group ID of this ring.
         "
    ::= { tnERPSEntry 11 }

tnERPSAlarm OBJECT-TYPE
    SYNTAX          INTEGER{
                       active (1),
                       notActive (2)
                    }
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "There is an active alarm on the ERPS.
         "
    ::= { tnERPSEntry 12 }

tnERPSRowStatus OBJECT-TYPE
    SYNTAX          RowStatus
    MAX-ACCESS      read-create
    STATUS          current
    DESCRIPTION
        "The rowstatus of the Ethernet Ring Protection Switch.
         "
    ::= { tnERPSEntry 13 }
-- ******************************************************************
-- TN ERPS Cfg Table
-- ******************************************************************
tnERPSConfigTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSConfigEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the configuration of Instance Configuration."
    ::= { tnERPSMgmtObjects 2 }

tnERPSConfigEntry OBJECT-TYPE
    SYNTAX        TnERPSConfigEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an ERPS.
        "
    INDEX           { tnERPSinstance }
    ::= { tnERPSConfigTable 1 }

TnERPSConfigEntry ::= SEQUENCE {
        tnERPSConfigStatus       INTEGER,
        tnERPSConfigGuardTime    INTEGER,
        tnERPSConfigWtrTime      INTEGER,
        tnERPSConfigHoldOffTime  INTEGER,
        tnERPSConfigVersion      INTEGER,
        tnERPSConfigRevertive    TruthValue
}

tnERPSConfigStatus OBJECT-TYPE
        SYNTAX      INTEGER{
                     down (0),
                     up (1)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION 
             "Red: This ERPS is only created and has not yet been configured - is not active.
              Green: This ERPS is configured - is active¡£
              "
        ::= { tnERPSConfigEntry 1 }

tnERPSConfigGuardTime OBJECT-TYPE
    SYNTAX    INTEGER
    MAX-ACCESS  read-write
    STATUS current
    DESCRIPTION
        "Guard timeout value to be used to prevent ring nodes from receiving outdated R-APS messages.
         The period of the guard timer can be configured in 10 ms steps between 10 ms and 2 seconds, 
         with a default value of 500 ms
        "
    ::= { tnERPSConfigEntry 2 }

tnERPSConfigWtrTime OBJECT-TYPE
    SYNTAX          INTEGER{
                     t1min (1),
                     t2min (2),
                     t3min (3),
                     t4min (4),
                     t5min (5),
                     t6min (6),
                     t7min (7),
                     t8min (8),
                     t9min (9),
                     t10min (10),
                     t11min (11),
                     t12min (12)
                    }
    MAX-ACCESS      read-write
    STATUS          current
    DESCRIPTION
        "The Wait To Restore timing value to be used in revertive switching.
         The period of the WTR time can be configured by the operator 
         in 1 minute steps between 1 and 12 minutes with a default value of 5 minutes.
         "
    ::= { tnERPSConfigEntry 3 }

tnERPSConfigHoldOffTime OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-write
    STATUS          current
    DESCRIPTION
        "The timing value to be used to make persistent check on Signal Fail before switching.
         The range of the hold off timer is 0 to 10 seconds in steps of 100 ms
        "
    ::= { tnERPSConfigEntry 4 }

tnERPSConfigVersion  OBJECT-TYPE
    SYNTAX          INTEGER{
                     v1 (1),
                     v2 (2)
                    }
    MAX-ACCESS      read-write
    STATUS          current
    DESCRIPTION
        "Select v1 or v2 as the ERPS version to be used. For fields such as Version, OpCode, Flags, and End TLV, the values used are as defined in ITU-T Y.1731 (Version 0x01 is transmitted per 
         the current version of this Recommendation at the time of this publication.)
         G.8032v1 supported a single ring topology and G.8032v2 supports multiple rings/ladder topology.
         v1: G.8032 v1 supports a single ring topology. The v1 protocol is robust enough to work for unidirectional failure and 
             multiple link failure scenarios in a ring topology. 
             It allows mechanism to force switch (FS) or manual switch (MS) to take care of field maintenance scenario.
         v2: G.8032 v2 supports multiple rings/ladder topology. 
             The v2 protocol also introduced other features such as Revertive/ Non-revertive mode after condition, 
             that is causing the switch, is cleared, Administrative commands - Forced Switch (FS), 
             Manual Switch (MS) for blocking a particular ring port, Flush FDB (Filtering database),
             and support of multiple ERP instances on a single ring.
         "
    ::= { tnERPSConfigEntry 5 }

tnERPSConfigRevertive OBJECT-TYPE
    SYNTAX          TruthValue
    MAX-ACCESS      read-write
    STATUS          current
    DESCRIPTION
        "In Revertive mode, after the conditions causing a protection switch has cleared, 
         the traffic channel is restored to the working transport entity, i.e., blocked on the RPL.
         In Non-Revertive mode, the traffic channel continues to use the RPL, 
         if it is not failed, after a protection switch condition has cleared.
        "
    ::= { tnERPSConfigEntry 6 }
  
-- erps vlan Configuration tables
tnERPSVlanTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSVlanEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the configuration of vlan Configuration."
    ::= { tnERPSMgmtObjects 6 }

tnERPSVlanEntry OBJECT-TYPE
    SYNTAX          TnERPSVlanEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an vlan.
        "
    INDEX           { tnERPSinstance,tnERPSVlanInstance }
    ::= { tnERPSVlanTable 1 }

TnERPSVlanEntry ::= SEQUENCE { 
		tnERPSVlanInstance    Unsigned32,
        tnERPSVlanId          VlanId,
        tnERPSVlanRowStatus   RowStatus
}      

tnERPSVlanInstance OBJECT-TYPE
	     SYNTAX     Unsigned32(1..63)
	     MAX-ACCESS not-accessible
	     STATUS     current
	     DESCRIPTION
	        "The instance of the ERPS vlan.
	        "
	    ::= { tnERPSVlanEntry 1 }

tnERPSVlanId OBJECT-TYPE
        SYNTAX      VlanId
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "vlan id.
                    "
        ::= { tnERPSVlanEntry 2 }

tnERPSVlanRowStatus OBJECT-TYPE
        SYNTAX      RowStatus
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "row status.
                    "
        ::= { tnERPSVlanEntry 3 } 
   
-- RPL Configuration tables

tnERPSRPLTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSRPLEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the configuration of RPL Configuration."
    ::= { tnERPSMgmtObjects 3 }

tnERPSRPLEntry OBJECT-TYPE
    SYNTAX          TnERPSRPLEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an RPL.
        "
    INDEX           { tnERPSinstance }
    ::= { tnERPSRPLTable 1 }

TnERPSRPLEntry ::= SEQUENCE {
        tnERPSRPLRole     INTEGER,
        tnERPSRPLPort     INTEGER,
        tnERPSRPLClear    TruthValue
}

tnERPSRPLRole OBJECT-TYPE
        SYNTAX      INTEGER{
                     none (1),
                     owner (2),
                     neighbour (3)
                    }
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "It can be either RPL owner or RPL Neighbour.
                    "
        ::= { tnERPSRPLEntry 1 }

tnERPSRPLPort OBJECT-TYPE
        SYNTAX      INTEGER{
                     none (1),
                     port0 (2),
                     port1 (3)
                    }
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "This allows to select the east port or west port as the RPL block.
                    "
        ::= { tnERPSRPLEntry 2 } 

tnERPSRPLClear OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "If the owner has to be changed, 
                     then the clear check box allows to clear the RPL owner for that ERPS ring.
                    "
        ::= { tnERPSRPLEntry 3 }

-- Command Configuration tables

tnERPSCommandTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSCommandEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the configuration of Command Configuration."
    ::= { tnERPSMgmtObjects 4 }

tnERPSCommandEntry OBJECT-TYPE
    SYNTAX          TnERPSCommandEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an Command.
        "
    INDEX           { tnERPSinstance }
    ::= { tnERPSCommandTable 1 }

TnERPSCommandEntry ::= SEQUENCE {
        tnERPSCommand     INTEGER,
        tnERPSCommandPort INTEGER
}

tnERPSCommand OBJECT-TYPE
        SYNTAX      INTEGER{
                     none    (1),
                     manual  (2),                 
                     forced  (3),
                     clear   (4)
                    }
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "Administrative command.
                     A port can be administratively configured to be in either manual switch or
                     forced switch state.
                    "
        ::= { tnERPSCommandEntry 1 }

tnERPSCommandPort OBJECT-TYPE
        SYNTAX      INTEGER{
                     none (1),
                     port0 (2),
                     port1 (3)
                    }
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "Port selection - Port0 or Port1 of the protection Group on which the command is applied.
                    "
        ::= { tnERPSCommandEntry 2 } 

-- Instance State tables

tnERPSStateTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSStateEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the configuration of EVC control entry."
    ::= { tnERPSMgmtObjects 5 }

tnERPSStateEntry OBJECT-TYPE
    SYNTAX          TnERPSStateEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an instance State.
        "
    INDEX           { tnERPSinstance }
    ::= { tnERPSStateTable 1 }

TnERPSStateEntry ::= SEQUENCE {
        tnERPSState                  INTEGER,
        tnERPSStatePort0             INTEGER,
        tnERPSStatePort1             INTEGER,
        tnERPSStateTxAps             DisplayString,
        tnERPSStatePort0RxAps        DisplayString,
        tnERPSStatePort1RxAps        DisplayString,
        tnERPSStateWtrRemaining      INTEGER,
        tnERPSStateRPLUnBlocked      INTEGER,
        tnERPSStateNoApsReceived     TruthValue,
        tnERPSStatePort0Blockstatus  INTEGER,
        tnERPSStatePort1Blockstatus  INTEGER,
        tnERPSStateFopAlarm          TruthValue
}

tnERPSState OBJECT-TYPE
        SYNTAX      INTEGER{
                     idle  (1),
                     protected (2),
                     manual    (3),
                     forced    (4),
                     pending   (5),
                     unknown   (6)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "ERPS state according to State Transition Tables in G.8032.
                    "
        ::= { tnERPSStateEntry 1 }

tnERPSStatePort0 OBJECT-TYPE
        SYNTAX      INTEGER{
                     ok   (1),
                     sf   (2)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "
             OK: State of East port is ok.
             SF: State of East port is Signal Fail.
          "
        ::= { tnERPSStateEntry 2 }

tnERPSStatePort1 OBJECT-TYPE
    SYNTAX    INTEGER{
                     ok   (1),
                     sf   (2)
                    }
    MAX-ACCESS  read-only
    STATUS current
    DESCRIPTION
           "OK: State of East port is ok.
            SF: State of East port is Signal Fail.
           "
    ::= { tnERPSStateEntry 3 }

tnERPSStateTxAps  OBJECT-TYPE
    SYNTAX          DisplayString
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "The transmitted APS according to State Transition Tables in G.8032."
    ::= { tnERPSStateEntry 4 }

tnERPSStatePort0RxAps  OBJECT-TYPE
    SYNTAX          DisplayString
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "The received APS on Port 0 according to State Transition Tables in G.8032."
    ::= { tnERPSStateEntry 5 }

tnERPSStatePort1RxAps  OBJECT-TYPE
    SYNTAX          DisplayString
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "The received APS on Port 1 according to State Transition Tables in G.8032."
    ::= { tnERPSStateEntry 6 }

tnERPSStateWtrRemaining  OBJECT-TYPE
    SYNTAX          INTEGER
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "Remaining WTR timeout in milliseconds"
    ::= { tnERPSStateEntry 7 }

tnERPSStateRPLUnBlocked  OBJECT-TYPE
    SYNTAX          INTEGER{
                      block (0),
                      unblock (1)
                     }
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "APS is received on the working flow."
    ::= { tnERPSStateEntry 8 }

tnERPSStateNoApsReceived  OBJECT-TYPE
    SYNTAX          INTEGER{
                      noapsReceived (0),
                      apsReceived (1)
                     }

    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "RAPS PDU is not received from the other end."
    ::= { tnERPSStateEntry 9 }

tnERPSStatePort0Blockstatus OBJECT-TYPE
    SYNTAX          INTEGER{
                      block (0),
                      unblock (1)
                     }
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "Block status for Port 0 (Both traffic and R-APS block status). 
         R-APS channel is never blocked on sub-rings without virtual channel."
    ::= { tnERPSStateEntry 10 }

tnERPSStatePort1Blockstatus   OBJECT-TYPE
    SYNTAX          INTEGER{
                      block (0),
                      unblock (1)
                     }
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "Block status for Port 1 (Both traffic and R-APS block status). 
         R-APS channel is never blocked on sub-rings without virtual channel"
    ::= { tnERPSStateEntry 11 }

tnERPSStateFopAlarm   OBJECT-TYPE
    SYNTAX          TruthValue
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "Failure of Protocol Defect(FOP) status. 
         If FOP is detected, the red LED lights; otherwise the green LED lights. "
    ::= { tnERPSStateEntry 12 }

-- Sub-Ring Configuration tables
tnERPSSubRingCfgTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSSubRingCfgEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the configuration of Command Configuration."
    ::= { tnERPSMgmtObjects 7 }

tnERPSSubRingCfgEntry OBJECT-TYPE
    SYNTAX          TnERPSSubRingCfgEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an sub ring configuration.
        "
    INDEX           { tnERPSinstance }
    ::= { tnERPSSubRingCfgTable 1 }

TnERPSSubRingCfgEntry ::= SEQUENCE {
        tnERPSSubRingType             DisplayString,
        tnERPSSubRingTopologyChange   TruthValue
}

tnERPSSubRingType OBJECT-TYPE
        SYNTAX      DisplayString
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps ring type.
                    "
        ::= { tnERPSSubRingCfgEntry 1 }

tnERPSSubRingTopologyChange OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION "Clicking this checkbox indicates that the topology changes in the sub-ring are propagated in the major ring.
                    "
        ::= { tnERPSSubRingCfgEntry 2 }
       
-- erps statistics tables
tnERPSStatisticsTable OBJECT-TYPE
    SYNTAX          SEQUENCE OF TnERPSStatisticsEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This table contains the display of erps statistics."
    ::= { tnERPSMgmtObjects 8 }

tnERPSStatisticsEntry OBJECT-TYPE
    SYNTAX          TnERPSStatisticsEntry
    MAX-ACCESS      not-accessible
    STATUS          current
    DESCRIPTION
        "This entry represents an sub ring configuration.
        "
    INDEX           { tnERPSinstance }
    ::= { tnERPSStatisticsTable 1 }

TnERPSStatisticsEntry ::= SEQUENCE {
        tnERPSRAPSPDUReceived         INTEGER,
        tnERPSRAPSPDUDropped          INTEGER,
        tnERPSLocalSFOccurred         INTEGER,
        tnERPSLocalSFCleared          INTEGER,
        tnERPSRemoteSFReceived        INTEGER,
        tnERPSRemoteFSReceived        INTEGER,
        tnERPSNRMessageSent           INTEGER
}

tnERPSRAPSPDUReceived OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps R-APS PDU received.
                    "
        ::= { tnERPSStatisticsEntry 1 }

tnERPSRAPSPDUDropped OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps R-APS PDU dropped.
                    "
        ::= { tnERPSStatisticsEntry 2 }    
        
tnERPSLocalSFOccurred OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps local SF occurred.
                    "
        ::= { tnERPSStatisticsEntry 3 }
        
tnERPSLocalSFCleared OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps local SF cleared.
                    "
        ::= { tnERPSStatisticsEntry 4 }
        
tnERPSRemoteSFReceived OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps remote SF received.
                    "
        ::= { tnERPSStatisticsEntry 5 }
        
tnERPSRemoteFSReceived OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps remote FS received.
                    "
        ::= { tnERPSStatisticsEntry 6 }
        
tnERPSNRMessageSent OBJECT-TYPE
        SYNTAX      INTEGER
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION "erps NR message sent.
                    "
        ::= { tnERPSStatisticsEntry 7 }
END