CN1825814A - Method data communication network dividing area and route information diffusion - Google Patents
Method data communication network dividing area and route information diffusion Download PDFInfo
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- CN1825814A CN1825814A CN 200510033350 CN200510033350A CN1825814A CN 1825814 A CN1825814 A CN 1825814A CN 200510033350 CN200510033350 CN 200510033350 CN 200510033350 A CN200510033350 A CN 200510033350A CN 1825814 A CN1825814 A CN 1825814A
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Abstract
This invention discloses a method for dividing a data communication network and diffusing route information, in which, said data communication network includes multiple NE to be divided into different regions and the NE includes border NE, the method includes: configuring ports of said border NE in terms of domain ID, when a change happens to the route path in a domain, its route information is diffused to outside only when a predefined condition is met, when the route information of a domain in the border NE is changed and the accessibility of the NE is changed, its route information can be diffused to other domains by connecting with ports of other domains connected by said border NE.
Description
Technical field
The present invention relates to data communication network DCN (Data Communication Network is hereinafter to be referred as DCN) technology, relate to the method that a kind of data communication network carries out branch territory and routing iinformation diffusion particularly.
Background technology
In existing DCN operation mode, monoplane networking and single webmaster are got used to by many operators, bigger DCN net of so easy formation, when thereby the port of certain or certain several network elements in the network or the connection between network element are broken down when causing that the routing iinformation of each network element changes among the DCN, because routing iinformation is to broadcast at the whole network, scope is bigger, causes route oscillation and routing convergence overlong time easily.Therefore when the DCN network is big, for the ease of the management of webmaster to network element, the spread scope of restriction routing iinformation, need usually will be bigger network carry out the branch territory and manage." territory " the represented meaning here is meant " zone ".Each territory belongs to same level among the DCN, is not meant the notion in different levels territory.
When the DCN network is carried out the branch territory, normally some network elements are divided into different territories by the physical connection relation, and by realizing the branch territory of network element is managed with inter-domain routing protocol in the territory.In order to realize that inter-domain routing can reach, can on the network element of the border in territory, move inter-domain routing protocol usually, as adopting ospf protocol in the IP-based territory, and adopt bgp protocol between the territory, the method for prior art has following shortcoming:
1, needs directly to carry out the branch territory, and each network element is carried out the setting in territory, the division underaction in territory according to network element;
2, each network element is in the needs support region the Routing Protocol behind the branch territory, and the network element that is in the border, territory also needs to support inter-domain routing protocol; When in DCN the support region that these network elements constituted during Routing Protocol, divide behind the territory network element between each territory just can not intercommunication, and each territory need a Gateway Network Element and is connected to webmaster;
3, need carry out address planning and configuration to all network elements that constitute DCN, configuration and maintenance workload are very big.
Summary of the invention
The technical problem to be solved in the present invention provides the method for a kind of data communication network dividing area and routing iinformation diffusion, the branch territory method that overcomes prior art need be carried out the territory setting to each network element, the shortcoming of underaction and need carry out address planning and configuration to each network element, configuration and the big shortcoming of maintenance workload, the inter-domain routing protocol of the complexity that on the network element of border, needn't move simultaneously.
For solveing the technical problem, the present invention adopts following technical scheme:
The method of a kind of data communication network dividing area and routing iinformation diffusion, described data communication network comprises a plurality of network elements, and described a plurality of network elements are carried out the branch territory, has the border network element in the described network element between the territory; Said method comprising the steps of:
A) each port to described border network element is configured by relam identifier;
B) when the routed path in a certain territory changes, described border network element judges whether and need in this way, then its routing iinformation be spread to overseas port to overseas diffusion routing iinformation; Otherwise only in the territory, spread.
Described method, wherein: judge whether in the described step b) and need change for the route item number in this territory, when promptly the network element number changes to the condition of overseas diffusion routing iinformation.
Described method, wherein: described routing iinformation comprises place network element ID symbol.
Described method, wherein: described routing iinformation comprises network element IP address or nsap address.
Described method, wherein: described routing iinformation comprises port identifiers.
Described method is wherein, to the used agreement of overseas port diffusion, identical with the agreement of diffusion usefulness in the territory in the described step b).
Adopt technical scheme of the present invention,, divide the territory mode directly perceived, reasonable, divide the territory to select flexibly owing to be based on the territory dividing mode of port; Can not interrupt route, can dynamically carry out the territory at any time and divide; Limit unnecessary the whole network routing iinformation diffusion, thereby reduced the bandwidth that routing iinformation spreads shared DCN; Overcome because of certain port of network element lost efficacy the whole network routing convergence overlong time that causes and the shortcoming of route oscillation.
Description of drawings
Fig. 1 is the embodiment schematic diagram that the present invention presses the port dividing domain.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail:
As shown in Figure 1, in the method for described data communication network dividing area of the present invention, the network of six network element formations is divided into the situation in 1 two territories in territory 0 and territory, NE2 and NE3 are the border network elements, when being configured, only need each port among NE2 and the NE3 is carried out territory ID configuration, and do not need to relate to other network element.In the network element NE2 of border, Port1 and Port2 are designated as territory 0, and Port3 is designated as territory 1; In the network element NE3 of border, Port1 and Port2 are designated as territory 0, and Port3 is designated as territory 1.For border network element NE2 and NE3, when the routed path in each territory changes, its routing iinformation only spreads belonging between the port in same territory, and can not be diffused in other territories, when having only route entry increase or minimizing, its routing iinformation just can be diffused in other territories by belonging to the port in other territories in the network element.And for non-border network element, because the network element internal all of the port all belongs to same territory, the diffusion of its routing iinformation is the same with traditional treatment method, can spread between each port, is not subjected to any restriction.
The agreement of diffusion usefulness can be identical or inequality to the used agreement of overseas port diffusion with in the territory in the inventive method.
In the inventive method, described border network element routing iinformation diffusion conditions is:
If 1 one interior ports of network element are configured to belong to two or more territories respectively, this network element is exactly the border network element so, and the routing iinformation diffusion conditions only is suitable for the border network element.
2, increase in the routing table in certain territory in the network element of border or reduced network element, make that variation has taken place the accessibility of network element in the territory, at this moment its routing iinformation just can be diffused into by the port that belongs to other territories in this network element in other territories; Upgrade iff the routed path that is certain territory, represent that the accessibility of network element in this territory does not change, all network elements still can reach, and just variation has taken place reachable path, does not at this moment just need to carry out the diffusion process of routing iinformation.
Described routing iinformation comprises place network element ID symbol (place NE ID), network element IP address or nsap address, port identifiers (port id).
Present IP, OSI and some proprietary protocols of supporting, they can generate routing table according to each autocorrelative standard routing protocol, after network element carries out the branch territory by port, compared with former processing mode, the variation that is taken place is exactly on the network element of border, and the diffusion of routing iinformation between the territory has a condition restriction.The network element in certain territory is because the increase or the minimizing of a variety of causes generation network element, the route entry in this territory will take place to increase or reduce in the network element routing table of border, and at this moment the routing iinformation in this territory just can be diffused into by the port that belongs to other territories in the network element of border in other territories; Belonging to diffusion between the port in same territory then without any condition restriction for this domain routing information.Therefore can think to a certain extent this minute the territory scheme be with data communication channel DCC (Data Communication Channel) on the protocol-independent supported, unique need to change be exactly on the network element of border route information classify by the territory, and the diffusion of these routing iinformations has been increased restrictive condition.
It is bigger that the present invention is particularly suitable for the DCN network size, but the less situation of bandwidth chahnel adopts technical solution of the present invention and following advantage is arranged:
1, because employing based on the territory dividing mode of port, is therefore supported intuitively, reasonably to divide the territory mode, provides branch territory selection flexibly;
When 2, carrying out the branch territory, only need on the network element of border, carry out the simple setting of territory ID, and can not interrupt route, can dynamically carry out the territory at any time and divide different port;
3, periodic routing iinformation diffusion is limited in the scope in a territory, has also limited unnecessary spreading owing to routed path changes caused the whole network routing iinformation simultaneously, thereby reduces the bandwidth of shared DCN network in the routing iinformation diffusion process;
4, reduce routing convergence overlong time and the route oscillation problem that lost efficacy and cause because of certain port of some network elements, and its coverage is limited in the territory, reduced the scope of influence.
Though pass through with reference to the preferred embodiments of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (6)
1, the method for a kind of data communication network dividing area and routing iinformation diffusion, described data communication network comprises a plurality of network elements, and described a plurality of network elements are carried out the branch territory, has the border network element in the described network element between the territory; Said method comprising the steps of:
A) each port to described border network element is configured by relam identifier;
B) when the routed path in a certain territory changes, described border network element judges whether and need in this way, then its routing iinformation be spread to overseas port to overseas diffusion routing iinformation; Otherwise only in the territory, spread.
2, method according to claim 1 is characterized in that: judge whether in the described step b) and need change for the route item number in this territory to the condition of overseas diffusion routing iinformation, when promptly the network element number changes.
3, method according to claim 2 is characterized in that: described routing iinformation comprises place network element ID symbol.
4, method according to claim 2 is characterized in that: described routing iinformation comprises network element IP address or nsap address.
5, method according to claim 2 is characterized in that: described routing iinformation comprises port identifiers.
6, method according to claim 1 is characterized in that, and is to the used agreement of overseas port diffusion, identical with the agreement of diffusion usefulness in the territory in the described step b).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100333509A CN100395992C (en) | 2005-02-25 | 2005-02-25 | Method data communication network dividing area and route information diffusion |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100333509A CN100395992C (en) | 2005-02-25 | 2005-02-25 | Method data communication network dividing area and route information diffusion |
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| CN1825814A true CN1825814A (en) | 2006-08-30 |
| CN100395992C CN100395992C (en) | 2008-06-18 |
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| CNB2005100333509A Expired - Fee Related CN100395992C (en) | 2005-02-25 | 2005-02-25 | Method data communication network dividing area and route information diffusion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931583B (en) * | 2009-06-18 | 2012-09-26 | 中兴通讯股份有限公司 | Domain routing information generation method and device, path computation method and device |
| WO2015042853A1 (en) * | 2013-09-27 | 2015-04-02 | 华为技术有限公司 | Method, device and system for dividing domain for data communication network |
| WO2017041469A1 (en) * | 2015-09-10 | 2017-03-16 | 中兴通讯股份有限公司 | Method and apparatus for communicating with irregular domain of dcn in ptn device |
| CN112101394A (en) * | 2019-06-18 | 2020-12-18 | ***通信集团浙江有限公司 | Supplier domain deployment method and device, computing equipment and computer storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644532A (en) * | 1985-06-10 | 1987-02-17 | International Business Machines Corporation | Automatic update of topology in a hybrid network |
| US7133403B1 (en) * | 2000-05-05 | 2006-11-07 | Fujitsu Limited | Transport network and method |
-
2005
- 2005-02-25 CN CNB2005100333509A patent/CN100395992C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931583B (en) * | 2009-06-18 | 2012-09-26 | 中兴通讯股份有限公司 | Domain routing information generation method and device, path computation method and device |
| WO2015042853A1 (en) * | 2013-09-27 | 2015-04-02 | 华为技术有限公司 | Method, device and system for dividing domain for data communication network |
| CN104685829A (en) * | 2013-09-27 | 2015-06-03 | 华为技术有限公司 | Method, device and system for dividing domain for data communication network |
| CN104685829B (en) * | 2013-09-27 | 2017-08-25 | 华为技术有限公司 | Data communication network dividing area method, apparatus and system |
| WO2017041469A1 (en) * | 2015-09-10 | 2017-03-16 | 中兴通讯股份有限公司 | Method and apparatus for communicating with irregular domain of dcn in ptn device |
| CN112101394A (en) * | 2019-06-18 | 2020-12-18 | ***通信集团浙江有限公司 | Supplier domain deployment method and device, computing equipment and computer storage medium |
| CN112101394B (en) * | 2019-06-18 | 2024-03-22 | ***通信集团浙江有限公司 | Provider domain deployment method, device, computing equipment and computer storage medium |
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| Publication number | Publication date |
|---|---|
| CN100395992C (en) | 2008-06-18 |
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