-- ARISTA-REDUNDANCY-MIB: Arista Redundancy MIB
-- Copyright (c) 2012 Arista Networks, Inc.  All rights reserved.

ARISTA-REDUNDANCY-MIB DEFINITIONS ::= BEGIN

IMPORTS
    MODULE-IDENTITY, OBJECT-TYPE,
    NOTIFICATION-TYPE, Unsigned32       FROM SNMPv2-SMI
    TEXTUAL-CONVENTION, TimeStamp       FROM SNMPv2-TC
    MODULE-COMPLIANCE, OBJECT-GROUP,
    NOTIFICATION-GROUP                  FROM SNMPv2-CONF
    aristaMibs                          FROM ARISTA-SMI-MIB;

aristaRedundancyMIB MODULE-IDENTITY
    LAST-UPDATED "201408150000Z"
    ORGANIZATION "Arista Networks, Inc."
    CONTACT-INFO
        "Arista Networks, Inc.

         Postal: 5453 Great America Parkway
                 Santa Clara, CA 95054

         Tel: +1 408 547-5500

         E-mail: snmp@arista.com"
    DESCRIPTION
         "This MIB module provides configuration and status
         information pertaining to high availability or redundancy 
         infrastructure on Arista devices.

         As such, this MIB module is aimed at providing relevant
         information on 'Modular Systems' which support dual
         supervisors for control plane redundancy.
        
         Each of the dual supervisors are referred to as 'unit'
         in the module."
    REVISION     "201408150000Z"
    DESCRIPTION  "Updated postal and e-mail addresses."
    REVISION     "201211102237Z"
    DESCRIPTION  "Initial version of this MIB module."
   ::= { aristaMibs 8 }

-- Textual Conventions --

AristaRedundancyState ::= TEXTUAL-CONVENTION
    STATUS        current
    DESCRIPTION
         "The status of the unit.

         unknown
            - The redundancy status is unknown.
         standby
            - The unit is initialized, and is in the standby state.
         active 
            - The unit is currently in active mode. The SNMP agent
            runs only on the active unit.
         disabled
            - The unit is currently disabled."
    SYNTAX        INTEGER {
                     unknown(0),
                     standby(1),
                     active(2),
                     disabled(3)
                  }

AristaRedundancyProtocol ::= TEXTUAL-CONVENTION
    STATUS        current
    DESCRIPTION
         "The redundancy protocol.

         unknown
            - The protocol is unknown.
         simplex
            - The peer unit will remain disabled with this protocol.
         rpr
            - Route Processor Redundancy. This protocol
            allows the startup configuration files to be synchronized
            between the units but not the active operational state.
         sso
            - Stateful Switchover. This protocol allows the peer units
            to synchronize not only configuration but also operational
            state so when the active unit fails, the peer can take
            over control plane responsibilities."
    SYNTAX        INTEGER {
                      unknown(0),
                      simplex(1),
                      rpr(2),
                      sso(3)
                  }

aristaRedundancyObjects  OBJECT IDENTIFIER
   ::= { aristaRedundancyMIB 0 }

aristaRedundancyNotifications  OBJECT IDENTIFIER
   ::= { aristaRedundancyMIB 1 }

aristaRedundancyConformance  OBJECT IDENTIFIER
   ::= { aristaRedundancyMIB 2 }

aristaRedundancyStatus   OBJECT IDENTIFIER
   ::= { aristaRedundancyObjects 0 }

aristaRedundancyHistory  OBJECT IDENTIFIER
   ::= { aristaRedundancyObjects 1 }


-- redundancy status

aristaRedundancyProtocolConfig  OBJECT-TYPE
    SYNTAX        AristaRedundancyProtocol
    MAX-ACCESS    read-only
    STATUS        current
    DESCRIPTION       
         "Indicates the configured redundancy protocol in
         the system."
    ::= { aristaRedundancyStatus 1 }


aristaRedundancyProtocolOper  OBJECT-TYPE
    SYNTAX        AristaRedundancyProtocol
    MAX-ACCESS    read-only
    STATUS        current
    DESCRIPTION       
         "Indicates the operational redundancy protocol
         in the system."
    ::= { aristaRedundancyStatus 2 }

aristaRedundancyUnitStateTable  OBJECT-TYPE
    SYNTAX        SEQUENCE OF AristaRedundancyUnitStateEntry
    MAX-ACCESS    not-accessible
    STATUS        current
    DESCRIPTION
         "This table contains the current redundancy
         state information for the units in the system."
    ::= { aristaRedundancyStatus 3 }

aristaRedundancyUnitStateEntry  OBJECT-TYPE
    SYNTAX        AristaRedundancyUnitStateEntry
    MAX-ACCESS    not-accessible
    STATUS        current
    DESCRIPTION       
         "An entry containing redundancy state
         information for a unit."
    INDEX         { aristaRedundancyUnitId }
    ::= { aristaRedundancyUnitStateTable 1 }

AristaRedundancyUnitStateEntry ::= SEQUENCE {
    aristaRedundancyUnitId              Unsigned32,
    aristaRedundancyUnitState           AristaRedundancyState,
    aristaRedundancyUnitStateEntryTime  TimeStamp 
}

aristaRedundancyUnitId   OBJECT-TYPE
    SYNTAX        Unsigned32
    MAX-ACCESS    not-accessible
    STATUS        current
    DESCRIPTION       
         "A unique identifier representing a unit. 
         Usually it is the slot number of the inserted unit on 
         the given modular system."
    ::= { aristaRedundancyUnitStateEntry 1 }
    
aristaRedundancyUnitState   OBJECT-TYPE
    SYNTAX        AristaRedundancyState
    MAX-ACCESS    read-only
    STATUS        current
    DESCRIPTION       
         "The current state of the given unit."
    ::= { aristaRedundancyUnitStateEntry 2 }

aristaRedundancyUnitStateEntryTime   OBJECT-TYPE
    SYNTAX        TimeStamp
    MAX-ACCESS    read-only
    STATUS        current
    DESCRIPTION       
         "The value of sysUpTime when the unit entered
         the given state."
    ::= { aristaRedundancyUnitStateEntry 3 }


aristaRedundancyLastSwOverReason   OBJECT-TYPE
    SYNTAX        OCTET STRING (SIZE(0..255))
    MAX-ACCESS    read-only
    STATUS        current
    DESCRIPTION       
         "The reason for the last switchover in the system."
    ::= { aristaRedundancyStatus 4 }
   

-- Notifications

aristaRedundancyNotificationPrefix OBJECT IDENTIFIER
    ::= { aristaRedundancyNotifications 0 }

aristaRedundancySwitchOverNotif  NOTIFICATION-TYPE
    OBJECTS {
        aristaRedundancyUnitStateEntryTime,
        aristaRedundancyLastSwOverReason
    } 
    STATUS        current
    DESCRIPTION    
         "A switchover notification is generated whenever a unit
         becomes active and it has taken over the control
         plane duties."
    ::= { aristaRedundancyNotificationPrefix 1 }


-- Compliance, MIB groups

aristaRedundancyCompliances OBJECT IDENTIFIER
    ::= { aristaRedundancyConformance 1 }

aristaRedundancyGroups OBJECT IDENTIFIER 
    ::= { aristaRedundancyConformance 2 }

aristaRedundancyCompliance  MODULE-COMPLIANCE
    STATUS        current
    DESCRIPTION     
         "The compliance statement for Arista switches that
         support Redundancy MIB."
    MODULE          -- this module
    MANDATORY-GROUPS {
                         aristaRedundancyStatusGroup,
                         aristaRedundancyNotificationsGroup
                     }
    ::= { aristaRedundancyCompliances 1 }

aristaRedundancyStatusGroup  OBJECT-GROUP
    OBJECTS       {
                      aristaRedundancyProtocolConfig,
                      aristaRedundancyProtocolOper,
                      aristaRedundancyUnitState,
                      aristaRedundancyUnitStateEntryTime,
                      aristaRedundancyLastSwOverReason
                  }
    STATUS       current
    DESCRIPTION
        "The collection of objects that represent the redundancy
        status of the system."
    ::= { aristaRedundancyGroups 1 }

aristaRedundancyNotificationsGroup  NOTIFICATION-GROUP
    NOTIFICATIONS {
        aristaRedundancySwitchOverNotif
    }
    STATUS        current
    DESCRIPTION
        "The collection of notifications generated by the system on
        redundancy change events."
    ::= { aristaRedundancyGroups 2 }

END