CISCO-POWER-ETHERNET-EXT-MIB device MIB details by Cisco

CISCO-POWER-ETHERNET-EXT-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing CISCO-POWER-ETHERNET-EXT-MIB.

Vendor:	Cisco
Mib:	CISCO-POWER-ETHERNET-EXT-MIB  [download]  [view objects]
Tool:	ActiveXperts Network Monitor 2024 [download]    (ships with advanced SNMP/MIB tools)

-- *****************************************************************
-- CISCO-POWER-ETHERNET-EXT-MIB
--
-- March 2004, Seth Wang
--
-- Copyright (c) 2004 by Cisco Systems, Inc.
-- All rights reserved.
-- *****************************************************************
CISCO-POWER-ETHERNET-EXT-MIB DEFINITIONS ::= BEGIN

IMPORTS
    MODULE-IDENTITY, OBJECT-TYPE, Unsigned32
        FROM SNMPv2-SMI
    MODULE-COMPLIANCE, OBJECT-GROUP
        FROM SNMPv2-CONF
    TruthValue
        FROM SNMPv2-TC
    pethPsePortEntry
        FROM POWER-ETHERNET-MIB
    ciscoMgmt
        FROM CISCO-SMI;

ciscoPowerEthernetExtMIB MODULE-IDENTITY
    LAST-UPDATED "200404120000Z"
    ORGANIZATION "Cisco Systems, Inc."
    CONTACT-INFO
        "        Cisco Systems
                 Customer Service

         Postal: 170 W Tasman Drive
                 San Jose, CA 95134
                 USA

            Tel: +1 800 553-NETS

         E-mail: cs-lan-switch-snmp@cisco.com"
    DESCRIPTION
        "A MIB module for extending the POWER-ETHERNET-MIB
         (RFC3621) to add objects which provide additional
         management information about Power Sourcing Equipment
         (PSE) not available in POWER-ETHERNET-MIB.

         Glossary

         Power Sourcing Equipment (PSE)
             These are devices supplying electrical power to
             other equipment. They are, for example, inline power
             switches, inline power daughterboards and power patch
             panels.

         Powered Device (PD)
             These are devices receiving their electrical power
             supply from Power Sourcing Equipment. They are, for
             example, IP telephones and wireless access points
             or bridges."

    REVISION    "200404120000Z"
    DESCRIPTION
        "Initial version of this MIB module."
    ::= { ciscoMgmt 402 } 

cpeExtMIBNotifs
    OBJECT IDENTIFIER ::= { ciscoPowerEthernetExtMIB 0 }
cpeExtMIBObjects
    OBJECT IDENTIFIER ::= { ciscoPowerEthernetExtMIB 1 }
cpeExtMIBConformance
    OBJECT IDENTIFIER ::= { ciscoPowerEthernetExtMIB 2 }

cpeExtDefaultAllocation OBJECT-TYPE
    SYNTAX        Unsigned32
    UNITS         "milliwatts"
    MAX-ACCESS    read-write
    STATUS        current
    DESCRIPTION
        "This object indicates the default inline power allocation per
         port. This is a global configuration parameter that applies
         to all inline power capable ports in the system.

         The system must consider this object as well as the per port
         configuration object, cpeExtPsePortPwrMax, when determining
         how much power to allocate to a port. The system will use the
         lower of the two numbers."
    ::= { cpeExtMIBObjects 1 }

cpeExtPsePortTable OBJECT-TYPE
    SYNTAX        SEQUENCE OF CpeExtPsePortEntry
    MAX-ACCESS    not-accessible
    STATUS        current
    DESCRIPTION
        "This table extends the POWER-ETHERNET-MIB pethPsePortTable
         for power Ethernet ports on a Powered Sourcing Equipment
         (PSE) device."
    REFERENCE
        "RFC3621"
    ::= { cpeExtMIBObjects 2 }

cpeExtPsePortEntry OBJECT-TYPE
    SYNTAX        CpeExtPsePortEntry
    MAX-ACCESS    not-accessible
    STATUS        current
    DESCRIPTION
        "A cpeExtPsePortEntry extends a corresponding
         pethPsePortTable entry. This entry displays and
         controls more characteristics of a power Ethernet
         port on a PSE device."
    AUGMENTS      { pethPsePortEntry }
    ::= { cpeExtPsePortTable 1 }

CpeExtPsePortEntry ::= SEQUENCE {
        cpeExtPsePortEnable            INTEGER,
        cpeExtPsePortDiscoverMode      INTEGER,
        cpeExtPsePortDeviceDetected    TruthValue,
        cpeExtPsePortIeeePd            TruthValue,
        cpeExtPsePortAdditionalStatus  BITS,
        cpeExtPsePortPwrMax            Unsigned32,
        cpeExtPsePortPwrAllocated      Unsigned32,
        cpeExtPsePortPwrAvailable      Unsigned32,
        cpeExtPsePortPwrConsumption    Unsigned32
    }

cpeExtPsePortEnable OBJECT-TYPE
    SYNTAX       INTEGER {
                           auto(1),
                           static(2)
                         }
    MAX-ACCESS   read-write
    STATUS       current
    DESCRIPTION
        "This object is an extension of the pethPsePortAdminEnable
         object from RFC3621. It allows the user to be more specific
         when enabling the PSE functions. Both states, 'auto' and
         'static' correspond to a value of 'true' for the
         pethPsePortAdminEnable object. However, if the value of
         pethPsePortAdminEnable is 'false', then the value of this
         object is irrelevant.

         Setting this value to 'auto' enables Powered Device discovery
         on the interface and the amount of power allocated depends on
         the Powered Device discovered. If pethPsePortAdminEnable was
         'false' prior to this set operation, then it will become
         'true'.

         Setting this value to 'static' will also enable Powered
         Device discovery. However, this is different from 'auto'
         in that the amount of power is pre-allocated based on the
         configuration on the Power Sourcing Equipment. If
         pethPsePortAdminEnable was 'false' prior to this set
         operation, then it will become 'true'.

         When setting the pethPsePortAdminEnable object to 'true'
         this object will adopt the value of 'auto'."
    ::= { cpeExtPsePortEntry 1 }

cpeExtPsePortDiscoverMode OBJECT-TYPE
    SYNTAX       INTEGER {
                           unknown(1),
                           off(2),
                           ieee(3),
                           cisco(4),
                           ieeeAndCisco(5)
                         }
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This object indicates the discover mode used by the system to
         discover the PD.

         A value of 'unknown' indicates that the discover mode on the
         interface is unknown.

         A value of 'off' indicates that discovery is disabled on the
         interface.

         A value of 'ieee' indicates that the discover mode on the
         interface is IEEE based.

         A value of 'cisco' indicates that the discover mode on the
         interface is Cisco based.

         A value of 'ieeeAndCisco' indicates that the discover mode on
         the interface is both IEEE and Cisco based."
    ::= { cpeExtPsePortEntry 2 }

cpeExtPsePortDeviceDetected OBJECT-TYPE
    SYNTAX       TruthValue
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This object indicates if a Powered Device (PD) has been
         detected on the interface.

         A value of 'true' indicates that a PD has been detected on
         the interface.

         A value of 'false' indicates that no PD has been detected on
         the interface."
    ::= { cpeExtPsePortEntry 3 }

cpeExtPsePortIeeePd OBJECT-TYPE
    SYNTAX       TruthValue
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This object indicates whether the Powered Device attached
         to the interface is an IEEE compliant Powered Device or not.

         A value of 'true' indicates the attached Powered Device is
         an IEEE compliant Powered Device.

         A value of 'false' indicates the attached Powered Device
         is not an IEEE compliant Powered Device. This also means
         that the value of the corresponding object from the
         pethPsePortTable, pethPsePortPowerClassifications is
         irrelevant."
    ::= { cpeExtPsePortEntry 4 }

cpeExtPsePortAdditionalStatus OBJECT-TYPE
    SYNTAX       BITS { deny(0) }
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This object is an extension of the pethPsePortDetectionStatus
         object from RFC3621 and provides additional status
         information.

         deny: When set, the PD attached to the interface is being
               denied power due to insufficient power resources on
               the Power Sourcing Equipment."
    ::= { cpeExtPsePortEntry 5 }

cpeExtPsePortPwrMax OBJECT-TYPE
    SYNTAX       Unsigned32
    UNITS        "milliwatts"
    MAX-ACCESS   read-write
    STATUS       current
    DESCRIPTION
        "This indicates the maximum amount of power that the PSE will
         make available to the PD connected to this interface."
    ::= { cpeExtPsePortEntry 6 }

cpeExtPsePortPwrAllocated OBJECT-TYPE
    SYNTAX       Unsigned32
    UNITS        "milliwatts"
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This object indicates the amount of power allocated from the
         PSE for the PD."
    ::= { cpeExtPsePortEntry 7 }

cpeExtPsePortPwrAvailable OBJECT-TYPE
    SYNTAX       Unsigned32
    UNITS        "milliwatts"
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This object indicates the amount of power available for
         the PD to use. This value may differ from the value
         cpeExtPsePortPwrAllocated due to the efficiency issues
         of delivering the power from the PSE to the PD.

         When sufficient power is available to power a PD, this
         value should be equal to the lower of the two objects,
         cpeExtDefaultAllocation and cpeExtPsePortPwrMax."
    ::= { cpeExtPsePortEntry 8 }

cpeExtPsePortPwrConsumption OBJECT-TYPE
    SYNTAX       Unsigned32
    UNITS        "milliwatts"
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "This indicates the actual power consumption of the PD
         connected to this interface. It may not necessarily
         be equal to the value of cpeExtPsePortPwrAvailable."
    ::= { cpeExtPsePortEntry 9 }

-- Conformance

cpeExtMIBCompliances
    OBJECT IDENTIFIER ::= { cpeExtMIBConformance 1 }

cpeExtMIBGroups
    OBJECT IDENTIFIER ::= { cpeExtMIBConformance 2 }

cpeExtMIBCompliance MODULE-COMPLIANCE
    STATUS current
    DESCRIPTION
        "The compliance statement for the
         CISCO-POWER-ETHERNET-EXT-MIB."
    MODULE
        MANDATORY-GROUPS { cpeExtPsePortGroup }
    GROUP cpeExtPsePortGlobalConfigGroup
    DESCRIPTION
        "The cpeExtPsePortGlobalConfigGroup is mandatory for agents
         that support global configurations on the PSE interfaces."
    ::= { cpeExtMIBCompliances 1 }

-- Units of Conformance

cpeExtPsePortGroup OBJECT-GROUP
    OBJECTS {
        cpeExtPsePortEnable,
        cpeExtPsePortDiscoverMode,
        cpeExtPsePortDeviceDetected,
        cpeExtPsePortIeeePd,
        cpeExtPsePortAdditionalStatus,
        cpeExtPsePortPwrMax,
        cpeExtPsePortPwrAllocated,
        cpeExtPsePortPwrAvailable,
        cpeExtPsePortPwrConsumption
    }
    STATUS current
    DESCRIPTION
        "This group provides information and configuration objects
         in addition to those provided in the POWER-ETHERNET-MIB
         (RFC3621)."
    ::= { cpeExtMIBGroups 1 }

cpeExtPsePortGlobalConfigGroup OBJECT-GROUP
    OBJECTS {
        cpeExtDefaultAllocation
    }
    STATUS current
    DESCRIPTION
        "This is a collection of objects which provide global
         configuration of the PSE interfaces."
     ::= { cpeExtMIBGroups 2 }

END