The Common Management Information Protocol (CMIP) is the OSI specified network management protocol. Defined i
ITU-T Recommendation X.711, ISO/IEC International Standard 9596-1
It provides an implementation for the services defined by the Common Management Information Service (CMIS) specified i
ITU-T Recommendation X.710, ISO/IEC International Standard 9595
allowing communication between network management applications and management agents. CMIS/CMIP is the network management protocol specified by the ISO/ OSI

Network management model FCAPS is the ISO Telecommunications Management Network model and framework for network management. ''FCAPS'' is an acronym for fault, configuration, accounting, performance, security, the management categories into which the ISO model defines netw ...

and is further defined by the ITU-T in the X.700 series of recommendations. CMIP models management information in terms of managed objects and allows both modification and performing actions on managed objects. Managed objects are described using

GDMO The Guidelines for the Definition of Managed Objects (GDMO) is a specification for defining managed objects of interest to the Telecommunications Management Network for use in CMIP. GDMO to the Structure of Management Information for defining a ...

(Guidelines for the Definition of Managed Objects), and can be identified by a distinguished name (DN), from the

X.500 X.500 is a series of computer networking standards covering electronic directory services. The X.500 series was developed by the ITU-T, Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T). ITU-T was former ...

directory. CMIP also provides good security (support authorization, access control, and security logs) and flexible reporting of unusual network conditions.

Services implemented

The management functionality implemented by CMIP is described under CMIS services. In a typical

Telecommunications Management Network The Telecommunications Management Network is a protocol model defined by ITU-T for managing open systems in a communications network. It is part of the ITU-T Recommendation series M.3000 and is based on the OSI management specifications in ITU-T ...

, a

management system A management system is a set of policies, processes and procedures used by an organization to ensure that it can fulfill the tasks required to achieve its objectives. These objectives cover many aspects of the organization's operations (including ...

will make use of the management operation services to monitor network elements. Management agents found on network elements will make use of the management notification services to send notifications or alarms to the network management system.

Deployment

CMIP is implemented in association with the ACSE and ROSE protocols. Both are Layer 7 OSI protocols (Application Layer). ACSE is used to manage associations between management applications (i.e. manage connections between CMIP agents). ROSE is employed for all data exchange interactions. Besides the presence of these Layer 7 protocols, CMIP assumes the presence of all OSI layers at lower levels but does not explicitly specify what these should be. There have been some attempts to adapt CMIP to the TCP/IP protocol stack. Most notable is CMOT contained in RFC 1189 (detailing CMIP over TCP). Other possibilities include RFC 1006 (which provides an ISO transport service on top of

TCP TCP may refer to: Science and technology * Transformer coupled plasma * Tool Center Point, see Robot end effector Computing * Transmission Control Protocol, a fundamental Internet standard * Telephony control protocol, a Bluetooth communication s ...

), and CMIP over

LPP LPP may refer to: * LPP (company), a Polish clothing retailer * LPP (gene) * Labor-Progressive Party, Canadian Communist Party from 1943 to 1959 * Laboratoire de Phonétique et Phonologie, a French laboratory * Labour Party Pakistan * Latvia's Fi ...

(a presentation layer protocol that can run on top of

or UDP). There is also a form of CMIS that is developed to operate directly on top of the

LLC A limited liability company (LLC for short) is the US-specific form of a private limited company. It is a business structure that can combine the pass-through taxation of a partnership or sole proprietorship with the limited liability of a ...

sublayer. It is called the LAN/MAN Management Protocol (LMMP), formerly it was the ''Common Management Information Services and Protocol over IEEE 802 Logical Link Control (CMOL)''. This protocol does away with the need for the OSI stack as is the case with CMIP.

History

CMIP was designed in competition with SNMP, and has far more features than SNMP. For example, SNMP defines only "set" actions to alter the state of the managed device, while CMIP allows the definition of any type of action. CMIP was a key part of the

, and enabled cross-organizational as well as cross-vendor network management. On the Internet, however, most TCP/IP devices support SNMP and not CMIP. This is because of the complexity and resource requirements of CMIP agents and management systems. CMIP is supported mainly by telecommunication devices.

References

*CMIP is formally defined by the

X.700 The Common Management Information Protocol (CMIP) is the OSI specified network management protocol. Defined iITU-T Recommendation X.711, ISO/IEC International Standard 9596-1 It provides an implementation for the services defined by the Comm ...

series of recommendations from the ITU-T (in particular X.711), and ISO 9596. Some description is also provided in RFC 1095 and RFC 1189 (The Common Management Information Services and Protocols for the Internet).
List of ITU X-series recommendations
* * {{cite book , first=Allan , last=Leinwand , author2=Conroy, Karen Fang , editor=Thomas Stone , year=1996 , title=Network Management: A Practical Perspective , publisher=Addison Wesley Longman, Inc. , location=Massachusetts , isbn=978-0-201-60999-8 ITU-T recommendations Network management OSI protocols

Services implemented

Deployment

History

See also

References