RFC2325

Network Working Group M. Slavitch Request for Comments: 2325 Loran Technologies Inc. Category: Informational 1 April 1998

  Definitions of Managed Objects for Drip-Type Heated Beverage
                  Hardware Devices using SMIv2

Status of this Memo

This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

Introduction

This memo defines an extension to the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines objects for the management of coffee-brewing and maintenance devices.

The SNMPv2 Network Management Framework

The SNMPv2 Network Management Framework consists of four major components. They are:

  o    RFC 1442 [1] which defines the SMI, the mechanisms used for
       describing and naming objects for the purpose of management.

  o    STD 17, RFC 1213 [2] defines MIB-II, the core set of managed
       objects for the Internet suite of protocols.

  o    RFC 1445 [3] which defines the administrative and other
       architectural aspects of the framework.

  o    RFC 1448 [4] which defines the protocol used for network
       access to managed objects.

The Framework permits new objects to be defined for the purpose of experimentation and evaluation.

Object Definitions

Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) defined in the SMI. In particular, each object object type is named by an OBJECT IDENTIFIER, an administratively assigned name. The object type together with an object instance serves to uniquely identify a specific instantiation of the object. For human convenience, we often use a textual string, termed the descriptor, to refer to the object type.

Overview

The COFFEE POT MIB applies to managed devices that brew, store, and deliver heated coffee beverages. The COFFEE POT MIB is mandatory for all systems that have such a hardware port supporting services managed through some other MIB.

The MIB contains objects that relate to physical connections, configuration, storage levels, availabilty, quality of service, and availability.

Relationship to Interface MIB

The COFFEE-POT-MIB is one of many MIBs designed for layered use as described in the Interface MIB [5]. In most implementations where it is present, it will be in the lowest interface sublayer, that is, the COFFEE-POT-MIB represents the physical layer, providing service to higher layers such as the Character MIB [6].

Although it is unlikely that a coffee port will actually be used as a network interface, which is the intent of the Interface MIB, the COFFEE-POT-MIB is closely connected to the Character MIB, which can share hardware interfaces with network operation, and relate to the RS-232 MIB [7].

The Interface MIB's ifTestTable and ifRcvAddressTable are not relevant to the COFFEE-POT-MIB.

The COFFEE-POT-MIB is relevant for ifType values sip(31), and perhaps others.

The COFFEE-POT-MIB requires the conformance groups ifGeneralGroup, and ifFixedLengthGroup.

Usefulness of error counters in this MIB depends on the octet counters in ifFixedLengthGroup.

Definitions

COFFEE-POT-MIB DEFINITIONS ::= BEGIN

IMPORTS

   MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
   TimeStamp, TimeInterval,
   Counter32, Integer32
       FROM SNMPv2-SMI
   InterfaceIndex
       FROM IF-MIB
   transmission
       FROM RFC1213-MIB
   MODULE-COMPLIANCE, OBJECT-GROUP
       FROM SNMPv2-CONF;

coffee MODULE-IDENTITY

    LAST-UPDATED "9803231700Z"
    ORGANIZATION "Networked Appliance Management Working Group"

    CONTACT-INFO
           "        Michael Slavitch
                    Loran Technologies,
                    955 Green Valley Crescent
                    Ottawa, Ontario Canada K2A 0B6

               Tel: 613-723-7505
               Fax: 613-723-7209
            E-mail: [email protected]"
    DESCRIPTION
           "The MIB Module for coffee vending devices."
   ::= { transmission 132 }

potName OBJECT-TYPE

    SYNTAX     DisplayString (SIZE (0..255))
    MAX-ACCESS read-only

    STATUS current
    DESCRIPTION
            "The vendor description of the pot under management"
    ::= { coffee 1 }

potCapacity OBJECT-TYPE

    SYNTAX Integer32
    MAX-ACCESS read-only
    STATUS current
    DESCRIPTION
       "The number of units of beverage supported by this device
        (regardless of its current state) ."
   ::= { coffee 2 }

potType OBJECT-TYPE

    SYNTAX     INTEGER {
       automatic-drip(1),
       percolator(2),
       french-press(3),
       espresso(4),
       }
    MAX-ACCESS read-write
    STATUS current
    DESCRIPTION
            "The brew type of the coffee pot."
    ::= { coffee 3 }

potLocation OBJECT-TYPE {

    SYNTAX     DisplayString (SIZE (0..255))
    MAX-ACCESS read-write
    STATUS current
    DESCRIPTION
            "The physical location of the pot in question"
    ::= { coffee 4 }

potMonitor OBJECT IDENTIFIER ::= { coffee 6 }

potOperStatus

    SYNTAX     Integer {
                    off(1),
                    brewing(2),
                    holding(3),
                    other(4),
                    waiting(5)

                    }
    MAX-ACCESS read-only
    STATUS current
    DESCRIPTION
            "The operating status of the pot in question. Note
             that this is a read-only feature. Current hardware
             prevents us from changing the port state via SNMP."
    ::= { potMonitor 1 }

potLevel OBJECT-TYPE
    SYNTAX     Integer32
    MAX-ACCESS read-only
    STATUS current
    DESCRIPTION
            "The number of units of coffee under management. The
             units of level are defined in potMetric below."
    ::= { potMonitor 2 }

potMetric  OBJECT-TYPE
    SYNTAX     Integer {
                espresso(1),
                demi-tasse(2),
                cup(3),
                mug(4),
                bucket(5)
                }
    MAX-ACCESS read-only
    STATUS current
    DESCRIPTION
            "The vendor description of the pot under management"
    ::= { potMonitor 3 }

potStartTime OBJECT-TYPE

   SYNTAX     Integer64
   MAX-ACCESS read-write
   STATUS     current
   DESCRIPTION
           "The time in seconds since Jan 1 1970 to start the pot
            if and only if potOperStatus is waiting(5)"
   ::= { potMonitor 4 }

lastStartTime OBJECT-TYPE
   SYNTAX     TimeInterval
   MAX-ACCESS read-only
   STATUS     current
   DESCRIPTION

           "The amount of time, in TimeTicks, since the coffee
           making process was initiated."
   ::= { potMonitor 5 }

potTemperature OBJECT-TYPE
   SYNTAX     Integer32
   UNITS      "degrees Centigrade"
   MAX-ACCESS read-only
   STATUS     current
   DESCRIPTION
           "The ambient temperature of the coffee within the pot"

  ::= { potMonitor 6 }

END

Acknowledgements

Networked Appliance Management Working Group (not) of the IETF.

References

[1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure

   of Management Information for version 2 of the Simple Network
   Management Protocol (SNMPv2)", RFC 1442, April 1993.

[2] McCloghrie, K., and M. Rose, Editors, "Management Information

   Base for Network Management of TCP/IP-based internets: MIB-II",
   STD 17, RFC 1213, March 1991.

[3] Galvin, J., and K. McCloghrie, "Administrative Model for version

   2 of the Simple Network Management Protocol (SNMPv2)", RFC 1445,
   April 1993.

[4] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol

   Operations for version 2 of the Simple Network Management
   Protocol (SNMPv2)", RFC 1448, April 1993.

[5] McCloghrie, K., and F. Kastenholz, "Evolution of the Interfaces

   Group of MIB-II", RFC 1573, January 1994.

[6] Valdez, Juan, "Definitions of Columbian Objects for Coffee Pot

   Devices using SMIv2", Columbia, Inc., March 1998.

Security Considerations

Security issues are not discussed in this memo.

Author's Address

Michael Slavitch Loran Technologies 955 Green Valley Crescent Ottawa, Ontario Canada K2C 3V4

Phone: 613 723 7505 EMail: [email protected]

Full Copyright Statement

Copyright (C) The Internet Society (1998). All Rights Reserved.

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