WO2005109752A1 - Verfahren zur ermittlung der struktur eines kommunikationsnetzwerkes - Google Patents
Verfahren zur ermittlung der struktur eines kommunikationsnetzwerkes Download PDFInfo
- Publication number
- WO2005109752A1 WO2005109752A1 PCT/EP2005/051309 EP2005051309W WO2005109752A1 WO 2005109752 A1 WO2005109752 A1 WO 2005109752A1 EP 2005051309 W EP2005051309 W EP 2005051309W WO 2005109752 A1 WO2005109752 A1 WO 2005109752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- network
- connection
- nex
- attribute
- epx
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
Definitions
- the invention relates to a method for determining the structure of a communication network, which consists of several network elements and physical connections between these network elements.
- a communication network is by definition a resource that connects service access points that are distant from one another and makes these services with service features available for communication purposes.
- a communication network usually breaks down into an application system and a transport network, the transport network providing a safe, error-free and high-quality transport route.
- the application system requires this transport and interprets the transported data in order to make it accessible and usable for the participant.
- the communication network and in particular the transport network, consist of network elements which are connected to one another by means of physical connections.
- Operation and maintenance are carried out using systems for network management, so-called management systems.
- management systems For the operation and maintenance of the communication network, it is important to know the structure, structure and components of the communication network, although these are often no longer apparent after the communication network has been set up.
- the methods known for data networks based on the Internet protocol make it possible to learn the network structure from the network.
- the learned structure is not necessarily identical to the physical network structure. As a result, this method can only be used to a limited extent for the communication network.
- Another known method is to manually enter the network structure into the management system during construction.
- this procedure is relatively time-consuming, since every subsequent change in the network structure must be added manually in the management system.
- the invention is therefore based on the object of specifying a method with which the structure of a communication network can be determined from the network in a simple manner.
- this is done using a method of the type mentioned in the introduction, in which an attribute is stored in each network element for each end point of a connection.
- This attribute comprises the complete information about the network element neighboring by means of this connection. From the information contained in the attributes of the connection endpoints is contained, the structure of the communication network is then determined by means of a so-called network management system, which is used in the expansion, operation and maintenance of the communication network.
- the method according to the invention for determining the structure of a communication network has the advantage that the structure of the communication network can be determined by means of a network management system which is connected to any network element, without prior manual input of the network structure data being necessary, since the information about the network structure in the attributes of the connection points of the network elements is always available in the communication network itself. In addition, very little funds are required to introduce this method.
- connection endpoints are machine readable and writable.
- a network management system which, via the information in the attributes of the connection endpoints in the network elements, obtains the information about the structure of the overall network from the respective neighboring elements.
- Fig. 1 shows the schematic structure of a communication network in which the method is used.
- Fig. 2 shows the schematic structure of the attribute
- the exemplary communication network N comprises several network elements NEx and physical connections PVx between the network elements NEx.
- each network element NEx there are the end points EPx of the physical connections PVx.
- These end points EPx are equipped with readable and writable attributes Ax, which correspond to the structure described in FIG. 2.
- Such an attribute Ax advantageously consists of ten fields, which include the following information: the version of the structure recognition, the type of network element identifier, the network element identifier, the selector type for OSI connections or IP connection, the protocol type, the type and the direction of the connection PVx of the connection, the identifier of the adjacent connection and the checksum.
- An attribute Ax with this schematic structure is typically 30 bytes long. However, to guarantee printable characters, Base64 coding is used, which means that the final length of the Ax attribute is 40 bytes.
- the structure of the structure of the attribute Ax results from the edge bindings that are specified by the existing network elements NEx in communication networks N.
- These attributes Ax contain the complete information about the neighboring network element NEx connected by means of the respective corresponding physical connection PVx.
- the network management system MS is also connected to the communication network N.
- the method according to the invention proceeds as follows: When the communication network N is set up, the two network elements NE1 and NE2 are also registered in the network management system MS and a connection is established to both. In operation, a connection PV1 is established between the end points EP2 and EP3 in the network elements NE1 and NE2 by means of the network management system MS, the data of the network element NE2 and the connection endpoint EP3 in the attribute A2 in the network element NE1 and the data of the network element NE1 and Connection end point EP2 stored in attribute A3 in network element NE2.
- the network elements NE2 and NE3 are known in the network management system MS, and there is also a connection to both.
- the connection PV2 between the end points EP4 and EP4 in the network elements NE2 and NE3 is then established by means of the network management system MS.
- the data of the network element NE2 and the connection end point EP4 are entered in the attribute A5 in the network element NE3 and the data of the network element NE3 and the connection endpoint EP5 in the attribute A4 in the network element NE2.
- the network management system MS must first be connected to the communication network N and have a connection to the network element NE1. All attributes AI and A2 of all connection endpoints EP1 and EP2 of the network element NE1 are now read by means of the network management system MS. The information contained in the attributes AI and A2 is interpreted by the network management system MS. It is determined in the exemplary embodiment that no network element NEx is connected to the connection end point EP1. The evaluation of the attribute A2 shows that the network element NE1 connects to the connection end point EP3 in the network element NE2 is bound. The network element NE2 and the connection PV1 are known to the network management system MS.
- the network management system is now connected to the newly learned network element NE2 and the attribute A4 of the still unknown connection end point EP4 of the network element NE2 is read out.
- the attribute A4 is interpreted by the network management system MS and shows that the network element NE2 is connected to the connection end point EP5 in the network element NE3.
- the network element NE3 and the connection PV2 are thereby made known to the network management system MS.
- the structure of the communication network N in the exemplary embodiment is now known to the network management system MS.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/579,428 US20080175168A1 (en) | 2004-05-04 | 2005-03-22 | Method for Determining the Structure of a Communication Network |
EP05729782A EP1743451A1 (de) | 2004-05-04 | 2005-03-22 | Verfahren zur ermittlung der struktur eines kommunikationsnetzwerkes |
CA002565491A CA2565491A1 (en) | 2004-05-04 | 2005-03-22 | Method for determining the structure of a communication network |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004021956A DE102004021956A1 (de) | 2004-05-04 | 2004-05-04 | Verfahren zur Ermittlung der Struktur eines Kommunikationsnetzwerkes |
DE102004021956.7 | 2004-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005109752A1 true WO2005109752A1 (de) | 2005-11-17 |
Family
ID=34962876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/051309 WO2005109752A1 (de) | 2004-05-04 | 2005-03-22 | Verfahren zur ermittlung der struktur eines kommunikationsnetzwerkes |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080175168A1 (de) |
EP (1) | EP1743451A1 (de) |
CN (1) | CN1951064A (de) |
CA (1) | CA2565491A1 (de) |
DE (1) | DE102004021956A1 (de) |
WO (1) | WO2005109752A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0348331A2 (de) * | 1988-06-23 | 1989-12-27 | International Business Machines Corporation | Verfahren zur wirksamen Aktualisierung der Knotentopologiedatenbanken in einem Datenkommunikationsnetzwerk |
EP0352041A2 (de) * | 1988-07-20 | 1990-01-24 | Racal-Milgo Limited | Verfahren und Netzwerke zur Informationsübermittlung |
US6667960B1 (en) * | 2000-04-29 | 2003-12-23 | Hewlett-Packard Development Company, L.P. | Protocol for identifying components in a point-to-point computer system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2871469B2 (ja) * | 1994-07-19 | 1999-03-17 | 日本電気株式会社 | Atm網構成管理方法 |
US6279140B1 (en) * | 1999-01-07 | 2001-08-21 | International Business Machines Corporation | Method and apparatus for checksum verification with receive packet processing |
US6522494B1 (en) * | 1999-09-30 | 2003-02-18 | Texas Instruments Incorporated | Apparatus and method for writing servo patterns on a computer hard disk |
US7099950B2 (en) * | 2000-03-13 | 2006-08-29 | At&T Corp. | Method and apparatus for using XML for both a protocol layer and application layer |
US6681248B1 (en) * | 2000-04-12 | 2004-01-20 | Sycamore Networks, Inc. | Method for port connectivity discovery in transparent high bandwidth networks |
CN1163814C (zh) * | 2000-04-28 | 2004-08-25 | 西南交通大学 | 一种数字数据变换方法 |
US7046680B1 (en) * | 2000-11-28 | 2006-05-16 | Mci, Inc. | Network access system including a programmable access device having distributed service control |
ITMI20010900A1 (it) * | 2001-04-30 | 2002-10-30 | Marconi Comm Spa | Rete per telecomunicazioni con rilevazione automatica della topologiae metodo per tale rilevazione |
-
2004
- 2004-05-04 DE DE102004021956A patent/DE102004021956A1/de not_active Ceased
-
2005
- 2005-03-22 CN CNA2005800141973A patent/CN1951064A/zh active Pending
- 2005-03-22 WO PCT/EP2005/051309 patent/WO2005109752A1/de active Application Filing
- 2005-03-22 CA CA002565491A patent/CA2565491A1/en not_active Abandoned
- 2005-03-22 US US11/579,428 patent/US20080175168A1/en not_active Abandoned
- 2005-03-22 EP EP05729782A patent/EP1743451A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0348331A2 (de) * | 1988-06-23 | 1989-12-27 | International Business Machines Corporation | Verfahren zur wirksamen Aktualisierung der Knotentopologiedatenbanken in einem Datenkommunikationsnetzwerk |
EP0352041A2 (de) * | 1988-07-20 | 1990-01-24 | Racal-Milgo Limited | Verfahren und Netzwerke zur Informationsübermittlung |
US6667960B1 (en) * | 2000-04-29 | 2003-12-23 | Hewlett-Packard Development Company, L.P. | Protocol for identifying components in a point-to-point computer system |
Non-Patent Citations (1)
Title |
---|
BERND KAMPMANN ET AL: "APPN Architecture and Product Implementation Tutorial", IBM RED BOOK, 1 May 1991 (1991-05-01), pages 43 - 71, XP002113526 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004021956A1 (de) | 2005-12-01 |
CN1951064A (zh) | 2007-04-18 |
EP1743451A1 (de) | 2007-01-17 |
CA2565491A1 (en) | 2005-11-17 |
US20080175168A1 (en) | 2008-07-24 |
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