CN1215686C - Method of distruting network protocol address of distributed wideband connecting-in authenticated node users - Google Patents
Method of distruting network protocol address of distributed wideband connecting-in authenticated node users Download PDFInfo
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- CN1215686C CN1215686C CNB031374093A CN03137409A CN1215686C CN 1215686 C CN1215686 C CN 1215686C CN B031374093 A CNB031374093 A CN B031374093A CN 03137409 A CN03137409 A CN 03137409A CN 1215686 C CN1215686 C CN 1215686C
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Abstract
The present invention relates to a distribution method for a dispersal type BRAS user IP address, which comprises the steps that a plurality of BRAS devices are provided with a section or a plurality of sections of shared IP address; the address sections of a local host are distributed to the BRAS devices from the shared IP address sections; each BRAS device can communicate by internal address management protocols among the BRAS devices, and IP address distribution information and mutual IP address application among the BRAS devices are exchanged; the IP address is distributed to users from the address sections of the local host after each BRAS device receives a user access application. When the address of the local host is exhausted, the address is applied towards other BRAS devices with an idle address, the BRAS devices share the IP address with the BRAS device which distributes the address for the users, and the corresponding route transfer is carried out by the BRAS device. When other BRAS devices do not have an idle address, the users are refused to be switched in. The present invention realizes that a section of IP address is shared and distributed by a plurality of BRAS devices, and thereby, the phenomenon of IP address fragments is avoided. The present invention can be widely applied to the field of wideband network communication.
Description
Technical field:
The present invention relates to the broadband network communication field, relate in particular to the distribution method of User IP (Internet protocol) address of a kind of distributing BRAS (broadband access authentication node).
Background technology:
At present, along with increasing rapidly of broadband user, original stand alone type concentrates the pattern of BRAS progressively to be replaced by the pattern of distributing BRAS.But distributing BRAS has also brought management when reducing cost and raising the efficiency, the operation complicated problems, and the IP address management efficient of especially docking access customer is lower.
BRAS generally adopts the built-in address pond to the management of station address, DHCP proxy client, and three kinds of modes such as Radius, all modes all need to distribute one section fixed IP addresses to be used for IP address to BRAS in advance and distribute.The IP address management module of BRAS only disposes the used IP address field of user that this machine inserts, only be used to manage and the IP address that distributes this machine to insert, when subscriber dialing inserts, from the address field distribution address of initial configuration, if address field assigns, then refusing user's inserts request.
Like this, when the BRAS of several dispersion formula equipment replaced a concentrated BRAS equipment, addresses distributed certainly will become the plurality of sections address by a sector address, and the address pool of each BRAS equipment can not be shared by other BRAS equipment.In this case, the IP address that some BRAS might occur exhausts, and the IP address of other BRAS equipment also has a large amount of residues, thereby takes distributing BRAS just may cause the phenomenon of IP address resource waste.This phenomenon is called IP address fragment problems.
Summary of the invention:
The object of the present invention is to provide a kind of saving BRAS device resource, avoid the distribution method of the BRAS IP address of IP address fragment problems.
Distributing broadband access authentication node users of the present invention internet protocol address distribution method is one section of some BRAS equipment disposition or plurality of sections share I P address section; Distribute its this machine address field from each BRAS of share I P address Duan Zhongwei; Each BRAS can communicate by the home address management agreement between each BRAS, exchanges the IP address assignment information between each BRAS and applies for the IP address mutually; Its step comprises
1, after each BRAS receives that the user inserts application, be user's distributing IP address from this machine address field earlier;
2, as this machine address depletion, then have idle address to one, generally be to have other BRAS applications maximum idle addresses and this BRAS share I P address, distribute the address by this BRAS for this user, and make corresponding routing forwarding;
If 3 every other BRAS all do not have idle address, then refusing user's inserts.
The every BRAS of the present invention stores the mailing address information that has other all BRAS of identical shared address section with it, comprises the interface IP address and the interface mac address of three layer interfaces of every other BRAS; Home address management agreement between each BRAS communicates by above-mentioned MAC Address.
The present invention improves the IP address management pattern of existing BRAS: for some BRAS distribute one section or plurality of sections fixed IP addresses, but make their shared addresses; Every BRAS all disposes the access mode of other BRAS that share this section IP address; Set up a cover at these some BRAS equipment rooms and be used for the interior signaling mechanism of address administration, so that understand and readjust the distribution of IP address mutually; And adjust route table items in view of the above to finish the forwarding of IP packet.
Like this, the present invention has just realized one section IP address by the shared distribution of some BRAS, thereby has avoided IP address fragment phenomenon.
Embodiment:
The present invention can be divided into three flow processs and implement:
Configuration flow:
1, when initial configuration, the address field of configuration is the share I P address section that several BRAS equipment insert the user.Comprise the configuration of DHCP Server or the configuration of local IP Local Pool.Specify the address field of a sector address as the default allocation of this BRAS for every BRAS in share I P address section, this address field is called this machine address field of this BRAS.
2, the visit information of the configuration and the BRAS equipment of this machine shared address mainly is the interface IP address of three layer interfaces of BRAS and the interface mac address of BRAS.
3, dispose home address management agreement between each BRAS, the MAC Address by each BRAS communicates, and the operating position of share I P address section is upgraded in announcement mutually.
The application IP addresses flow process:
1, receives the application of user's access protocol, if there is unappropriated IP address in this machine address field, the distributing IP address line item of going forward side by side from this machine address field then, the address assignment notice message by home address management agreement structure is to other BRAS announcement IP address distribution condition simultaneously.If this machine address field has not had the address, then claim this BRAS for exhausting BRAS.Enter 2.
2, select the idle maximum BRAS of this machine address field according to the operating position of share I P address section, this BRAS is called idle BRAS.Exhaust BRAS and will construct an application IP addresses message, to idle BRAS applied address.If there is no idle BRAS, then the access request of refusing user's.
3, after idle BRAS receives the application message, from the IP address of a free time of local address block application, and record, upgrade route forwarding table simultaneously, will be forwarded to three layer interfaces that exhaust BRAS to the message of this IP address.Then, HIPMG address response message of idle BRAS structure appends to this Bao Wenzhong to the address and issues idle BRAS.Send address assignment notice message simultaneously to other BRAS announcement IP address distribution condition.At this moment, claim that idle BRAS is Home-BRAS.
4, exhaust and after BRAS receives HIPMG address response message record is carried out in the address, and give the user address assignment.At this moment, claim that exhausting BRAS is Loan-BRAS
The address discharges flow process:
1, after BRAS receives the request of station address release, checks whether the address is this machine address field address, if the local address sector address then discharges address and end.If not this machine address field address, enter 2.
2, according to the reference address of record information acquisition Home-BRAS, the structure address discharges the application message, mails to Home-BRAS.
3, after Home-BRAS receives address release application, discharge the IP address, delete the routing forwarding list item of this IP address.The structure address discharges response message, mails to Loan-BRAS
4, after Loan-BRAS receives address release response message, interrupt the user and insert.
According to technical scheme of the present invention, be example with the Hammer 10000 IP DSLAM systems of Harbor Network, specify embodiments of the present invention:
Hammer 10000 has finished the scheme of embedded BRAS, can select the configuration mode of many BRAS share I P address section.
Hammer 10000 provides order line and network management interface configuration share I P address segment limit, and each Hammer 10000 information and this machine of acquiescence address field of this IP address field are shared in configuration.
Configuration Hammer 10000 provide PPPoE user access service.The user sends the request of PPPoE dialing authentication and by after the authentication, applies for the IP addresses to Hammer 10000.Hammer 10000 is at first from this machine address pool application IP address.If this machine address pool exhausts, then by the home address management agreement to idle Hammer10000 applied address, apply for successfully after, to the user, the user brings into use this address to carry out Internet to visit with address assignment.
The user sends the PPPoE interrupt requests.Hammer 10000 judges whether user's IP address is the local address pool address, if, accept request and discharge, end user's online.If not, then send the address and discharge request to Home-Hammer 10000, receive that replying the back interrupts user's online.
Claims (4)
1. distributing BRAS IP address distribution method, one section of some BRAS equipment disposition or plurality of sections share I P address; Distribute its this machine address field from each BRAS of share I P address Duan Zhongwei; Each BRAS can communicate by the home address management agreement between each BRAS, exchanges the IP address assignment information between each BRAS and applies for the IP address mutually; After each BRAS receives that the user inserts application, be user's distributing IP address from this machine address field earlier; As this machine address depletion, then apply for to other BRAS with idle address with exhausting BRAS share I P address, distribute the address by this BRAS for this user, and make corresponding routing forwarding; If other BRAS all do not have idle address, then refusing user's inserts;
The application IP addresses flow process is as follows:
After each BRAS reception user inserts application, if there is unappropriated IP address in this machine address field, the distributing IP address line item of going forward side by side from this machine address field then, simultaneously by home address management agreement structure address assignment notice message to other BRAS announcement IP address distribution condition; If this machine address field has not had the address, then claim this BRAS for exhausting BRAS;
Select this machine address field that idle BRAS is arranged, this BRAS is called idle BRAS; Exhaust BRAS by application IP addresses message of home address management agreement structure, to idle BRAS applied address;
After idle BRAS receives the application message, from the IP address of a free time of local address block application, and record, upgrade route forwarding table simultaneously, the message that mails to firm IP address of applying for is forwarded to three layer interfaces that exhaust BRAS;
Then, idle BRAS constructs a HIPMG address response message, the address is appended to issue in this message exhaust BRAS; Send address assignment notice message simultaneously to other BRAS announcement IP address distribution condition; At this moment, claim that idle BRAS is Home-BRAS;
Exhaust and after BRAS receives HIPMG address response message record is carried out in the address, and give the user address assignment; At this moment, claim that exhausting BRAS is Loan-BRAS.
If there is no idle BRAS, then the access request of refusing user's.
2. distributing BRAS IP address distribution method as claimed in claim 1, it is characterized in that each BRAS stores the mailing address information that has other all BRAS of identical shared address section with it, this mailing address information comprises the interface IP address and the interface mac address of three layer interfaces of every other BRAS; Home address management agreement between each BRAS communicates by the MAC Address of each BRAS.
3. distributing BRAS IP address distribution method as claimed in claim 1 is characterized in that as this machine address depletion, then select one have maximum idle addresses and also with other BRAS applied addresses of this BRAS share I P address section.
4, distributing BRAS IP address distribution method as claimed in claim 1 is characterized in that comprising that following address discharges flow process:
Each BRAS checks whether the address is this machine address field address after receiving the request of station address release, if the local address sector address then discharges address and end;
If not this machine address field address, according to the reference address of record information acquisition Home-BRAS, the structure address discharges the application message, mails to Home-BRAS;
Home-BRAS discharges the IP address after receiving address release application, deletes the routing forwarding list item of this IP address; And structure address release response message, mail to Loan-BRAS;
Loan-BRAS interrupts the user and inserts after receiving address release response message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031374093A CN1215686C (en) | 2003-06-19 | 2003-06-19 | Method of distruting network protocol address of distributed wideband connecting-in authenticated node users |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031374093A CN1215686C (en) | 2003-06-19 | 2003-06-19 | Method of distruting network protocol address of distributed wideband connecting-in authenticated node users |
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| Publication Number | Publication Date |
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| CN1455563A CN1455563A (en) | 2003-11-12 |
| CN1215686C true CN1215686C (en) | 2005-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031374093A Expired - Fee Related CN1215686C (en) | 2003-06-19 | 2003-06-19 | Method of distruting network protocol address of distributed wideband connecting-in authenticated node users |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373879C (en) * | 2004-09-16 | 2008-03-05 | 上海贝尔阿尔卡特股份有限公司 | Wideband access net with three layer access point and its IP address distributing method |
| CN102025528B (en) * | 2009-09-23 | 2013-12-18 | 中兴通讯股份有限公司 | Address management method, device and system |
| CN102025475A (en) * | 2009-09-23 | 2011-04-20 | 中兴通讯股份有限公司 | Address allocation method, apparatus and system in hot backup scene |
| CN102025790B (en) * | 2009-09-23 | 2013-12-18 | 中兴通讯股份有限公司 | Address allocation method, device and system |
| CN101951661B (en) * | 2010-09-28 | 2013-06-05 | 华为技术有限公司 | Address distribution method in sensor network and sensor network node |
| CN102025798B (en) * | 2010-12-15 | 2013-12-04 | 华为技术有限公司 | Address allocation processing method, device and system |
| CN102387222B (en) * | 2011-10-19 | 2014-08-06 | 中国联合网络通信集团有限公司 | Address distribution method, apparatus and system thereof |
| CN106331192B (en) * | 2015-06-23 | 2020-12-04 | 中兴通讯股份有限公司 | Network protocol IP address allocation method and device |
| CN107786681B (en) * | 2016-08-31 | 2021-02-26 | 中国电信股份有限公司 | Method, device and system for scheduling IP address resources |
| CN109150566B (en) * | 2017-06-19 | 2022-07-15 | 中兴通讯股份有限公司 | Service path restoration method and device |
| CN109495593B (en) * | 2017-09-11 | 2022-03-25 | 中兴通讯股份有限公司 | Address allocation method and system |
| CN111107173B (en) * | 2018-10-29 | 2023-04-07 | 中国移动通信集团浙江有限公司 | IP address planning method and system of IP bearing network |
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