CN102487398B - Multi link point to point protocol (MLPP) dynamically binding method and system - Google Patents
Multi link point to point protocol (MLPP) dynamically binding method and system Download PDFInfo
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- CN102487398B CN102487398B CN201010571017.4A CN201010571017A CN102487398B CN 102487398 B CN102487398 B CN 102487398B CN 201010571017 A CN201010571017 A CN 201010571017A CN 102487398 B CN102487398 B CN 102487398B
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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Abstract
The invention relates to a multi link point to point protocol (MLPP) dynamically binding method and a system. The method comprises the following steps that: a first communication terminal and a second communication terminal enable an MLPP dynamically binding function; during negotiation, the first communication terminal acquires an end point differentiation identification (EPD) of the second communication terminal; and the first communication terminal generates a link bundle (Bundle) information list according to acquired EPD configuration parameters, wherein the Bundle information list records the relation between a second communication terminal EPD and the Bundle of the first communication terminal, and adds a negotiated peer-peer protocol (PPP) link into the Bundle. The method and the system can support the dynamically established PPP link to use MLPPP technology, so the reliability and the stability of a virtual link are improved.
Description
Technical field
The present invention relates to communication technique field, be specifically related to a kind of Multi-Link Point-to-Point Protocol MLPPP dynamic binding method and system.
Background technology
Multi-Link Point-to-Point Protocol (MLPPP, PPP Multilink Protocol) be from point-to-point protocol (PPP, Point-to-Point Protocol) basis develops, with the difference of PPP be MLPPP can by meet " necessarily " condition multiple multilink bundlings together with, form a virtual link (being called a link bundle (Bundle)).Bundle is regarded a common link by user or network layer, is sent or receive packet by its.In Bundle, reality can be bundled by multiple physical link and form, data how between multiple link the content such as subpackage/integration be transparent to upper strata.After multilink bundles and defines Bundle, between transmitting terminal and receiving terminal, available bandwidth is exactly the bandwidth sum of all links in Bundle, so greatly can improve the efficiency of transmission of data.Simultaneously, MLPPP can carry out dynamic assignment to the resource in Bundle, as long as therefore there is a link normal in Bundle, so in Bundle any link interruption impact be all the bandwidth of Bundle, the performance of transmission, and the interruption that whole Bundle transmits can not be caused, thus add the reliability and stability of link.
Fig. 1 is the scene that existing MLPPP applies, first at physics ppp link link1, the upper static configuration of link3 its belong to multilink1 (Bundle title), then ppp link just starts to carry MLPPP attribute and carries out LCP (Link Control Protocol, LCP) consult, treat Network Control Protocol (the Network Control Protocol of LCP and Bundle of link, NCP) consult successfully, the Bundle just formal link as a logic plays a role, in such a mode, need to carry out MLPPP binding in advance to ppp link.
To in the research and practice of prior art, prior art is all in advance carry out MLPPP static binding to physical link, and then carry out MLPPP attribute negotiation.
Fig. 2 is in prior art, an example of dynamic creation PPP virtual link, because ppp link is dynamic creation, cannot is bonded in Bundle in advance, and under existing technology, this dynamic ppp link cannot apply MLPPP technology.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of MLPPP dynamic binding method and system, to support the ppp link application MLPPP technology of dynamic creation, the reliability and stability of virtual link is improved.
For solving above technical problem, the invention provides a kind of Multi-Link Point-to-Point Protocol (MLPPP) dynamic binding method, the method comprises:
The function that first communication ends and second communication end enables dynamic MLPPP bind;
During negotiation, the first communication ends obtains the end points identification mark (EPD) of second communication end;
Described first communication ends is according to the EPD configuration parameter obtained, link generation bundle (Bundle) information table, wherein, corresponding relation described in described Bundle information table record between second communication end EPD and the Bundle of described first communication ends, and according to described corresponding relation, the ppp link of negotiation is added in described Bundle.
Further, if there is not described corresponding relation, then the Bundle that establishment one is new, joins the ppp link of negotiation in described new Bundle.
Further, the ppp link of described negotiation adds after in described Bundle, and the Network Control Protocol (NCP) of carrying out described Bundle is consulted.
Further, after creating a described new Bundle, upgrade described Bundle information table, the corresponding relation of described second communication end EPD and described new Bundle is updated in table.
Further, during negotiation, described first communication ends obtains the process of the end points identification mark EPD of second communication end:
End points identification mark (EPD) configuration parameter generated is noticed by EPD option and is sent to described first communication ends by described second communication end, and wherein, described EPD configuration parameter have recorded the configuration information of the EPD value of dynamic ppp link.
Further, consult for LCP (LCP) consult time, described first communication ends resolve receive LCP bag, extract and resolve EPD option value, obtaining described EPD.
For solving above technical problem, the invention provides a kind of Multi-Link Point-to-Point Protocol (MLPPP) dynamic binding system, it is characterized in that, this system comprises: the first communication ends, second communication end:
The enable module of described first communication ends and second communication end, for the function of enables dynamic MLPPP binding;
The end points identification mark acquisition module of described first communication ends, for when consulting, obtains the end points identification mark (EPD) of second communication end;
The information table generation module of described first communication ends, for the EPD configuration parameter according to acquisition, link generation bundle (Bundle) information table, wherein, the corresponding relation described in described Bundle information table record between second communication end EPD and the Bundle of described first communication ends;
The link management module of described first communication ends, for according to described corresponding relation, adds the ppp link of negotiation in described Bundle.
Further, if there is not described corresponding relation, then the link management module of described first communication ends is also for creating a new Bundle, the ppp link of negotiation is joined in described new Bundle.
Further, described first communication ends also comprises negotiation module, and for adding after in described Bundle in the ppp link of described negotiation, the Network Control Protocol (NCP) of carrying out described Bundle is consulted.
Further, described first communication ends also comprises information table update module, for after the described new Bundle of establishment one, upgrades described Bundle information table, is updated in table by the corresponding relation of described second communication end EPD and described new Bundle.
The present invention makes full use of existing technology, when not increasing any cost, achieves the automatic MLPPP binding of ppp link.MLPPP association attributes is first sent by allowing link, in the process of consulting, MLPPP attribute is detected, the link auto-polymerization that MLPPP attribute is consistent, thus reach the object of MLPPP dynamic binding, this implementation will expand the scope of application of MLPPP technology greatly.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is MLPPP application scenarios schematic diagram in prior art;
Fig. 2 is that in prior art, virtual link cannot apply MLPPP technology schematic diagram;
Fig. 3 is ppp link dynamic binding method basic flow sheet in the embodiment of the present invention;
Fig. 4 is ppp link dynamic binding method decomposition process figure in the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Prior art cannot carry out the dynamic MLPPP binding of ppp link, and the embodiment of the present invention solves this technical barrier.Below be described in detail respectively.
The dynamic MLPPP binding method that the embodiment of the present invention provides, comprising:
The function that first communication ends and second communication end enables dynamic MLPPP bind;
During negotiation, the first communication ends obtains the end points identification mark (EndpointDiscriminator, EPD) of second communication end;
Described first communication ends is according to the EPD configuration parameter obtained, generate Bundle information table, wherein, corresponding relation described in described Bundle information table record between second communication end EPD and the Bundle of described first communication ends, and according to described corresponding relation, the ppp link of negotiation is added in described Bundle.
Fig. 3 is ppp link dynamic binding method basic flow sheet in the embodiment of the present invention, comprising:
Step S31, enable MLPPP dynamic binding function.
Communicating pair before a communication, determines whether to need to open MLPPP dynamic binding function.If open this function, so ppp link does not need to carry out static MLPPP binding in advance, and binding action can Dynamic Execution.
Step S32, generates EPD configuration parameter and sends.
Communicating pair before a communication, determines the EPD property value of ppp link.Based on the principle of common agreement, either party expects that the other side ties up the link in same Bundle, and the value of its EPD must be consistent.EPD configuration parameter is for preserving the corresponding relation of link and EPD value.Certainly, these values can configure, and automatically can also be generated by certain principle, as the MAC Address of frame, or the IP of designated port, as long as the uniqueness of EPD value in a dynamic Bundle in frame can be ensured.
During negotiation, the configuration parameter generated is sent to opposite end by local terminal, and wherein, described EPD configuration parameter have recorded the configuration information of the described EPD value of dynamic ppp link;
Step S33, receives EPD configuration parameter and generates Bundle information table.
Bundle information table is used for the corresponding relation of the EPD recording Bundle title and local terminal.This is a table dynamically updated.In table, EPD and Bundle is relation one to one.
Described opposite end, according to the described EPD configuration parameter received, generates described Bundle information table, records the corresponding relation between described local terminal EPD and the Bundle of described opposite end and according to described corresponding relation, the ppp link of negotiation is added in described Bundle
Step S34, dynamic MLPPP binding strategy.
LCP consults successfully, searches Bundle information table by local terminal EPD, detects and exists with or without corresponding Bundle, if existed, is bonded in this Bundle by this link, achieves the dynamic binding function of MLPPP; If there is no, then the Bundle that dynamic creation is corresponding with this EPD, and upgrade Bundle information table, meanwhile, this link is bonded in the new Bundle created, also achieves the dynamic binding function of MLPPP equally.
Fig. 4 is ppp link dynamic binding method decomposition process figure in the embodiment of the present invention, comprising:
Step S41, first communicating pair carries out LCP negotiation, if be configured with the dynamic binding function of MLPPP, need obtain the EPD of local terminal, be advertised to opposite end by lcp option from EPD configuration parameter;
Step S42, in the process that LCP consults, by resolving EPD option, can get the EPD of opposite end;
Step S43, both sides are through shaking hands several times, and final LCP consults successfully;
Step S44, LCP consult successfully, and Bundle corresponding in Bundle information table, by the EPD of local terminal, is searched in opposite end;
Step S45, by step S44, lookup result has two kinds, there is the Bundle corresponding with local terminal EPD, or do not exist in Bundle information table, thus has two to select branch:
There is branch in Bundle:
Step S45-11, finds the Bundle corresponding with local terminal EPD, supposes that its name is called Bundle1;
Step S45-12, is tied to this ppp link in Bundle1, thus there is at this MLPPP dynamic binding process that branch completes ppp link.
There is not branch in Bundle:
Step S45-21, owing to not finding corresponding Bundle, therefore needs for this link newly creates a Bundle, supposes that the new Bundle name created is called BundleN.
Step S45-22, upgrades Bundle information table, is updated in table, when there being the link LCP consistent with EPD to consult successfully next time, can walks to there is branch by the corresponding relation of this EPD and BundleN.
Step S45-23, is tied to this ppp link in BundleN, thus there is not at this MLPPP dynamic binding function that branch also reaches ppp link.
Step S45-24, owing to being a Bundle newly created, this Bundle needs to carry out NCP negotiation
After above Liang Ge branch completes, the step S46 of end:
Step S46, this terminates the end just representing MLPPP dynamic binding flow process, and it is consistent that follow-up flow process and the static MLPPP existed at present bind flow process.
In sum, the present invention is on the basis of following PPP/MLPPP agreement, make full use of this option of Endpointdiscriminator, become the distinguishing mark of Bundle, the link auto-polymerization making all EPD identical together, without the need to carrying out static MLPPP binding in advance, thus reach the dynamic binding function of MLPPP.
In order to realize above method, present invention also offers a kind of dynamically MLPPP binding system, this system comprises: the first communication ends, second communication end:
The enable module of described first communication ends and second communication end, for the function of enables dynamic MLPPP binding;
The end points identification mark acquisition module of described first communication ends, for when consulting, obtains the end points identification mark (EPD) of second communication end;
The information table generation module of described first communication ends, for according to the EPD configuration parameter obtained, generates Bundle information table, wherein, and the corresponding relation described in described Bundle information table record between second communication end EPD and the Bundle of described first communication ends;
The link management module of described first communication ends, for according to described corresponding relation, adds the ppp link of negotiation in described Bundle.
If there is not described corresponding relation, then the link management module of described first communication ends is also for creating a new Bundle, the ppp link of negotiation is joined in described new Bundle.
Described first communication ends also comprises negotiation module, and for adding after in described Bundle in the ppp link of described negotiation, the Network Control Protocol (NCP) of carrying out described Bundle is consulted.
Described first communication ends also comprises information table update module, for after the described new Bundle of establishment one, upgrades described Bundle information table, is updated in table by the corresponding relation of described second communication end EPD and described new Bundle.
Above the ppp link MLPPP dynamic binding method that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all change part in specific embodiments and applications, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.In sum, this specification embodiment should not be construed as limitation of the present invention.
Claims (6)
1. Multi-Link Point-to-Point Protocol (MLPPP) dynamic binding method, it is characterized in that, the method comprises:
The function that first communication ends and second communication end enables dynamic MLPPP bind;
During negotiation, the first communication ends obtains the end points identification mark (EPD) of second communication end;
Described first communication ends is according to the EPD configuration parameter obtained, link generation bundle (Bundle) information table, wherein, corresponding relation described in described Bundle information table record between second communication end EPD and the Bundle of described first communication ends, and according to described corresponding relation, the ppp link of negotiation is added in described Bundle;
If there is not described corresponding relation, then the Bundle that establishment one is new, joins the ppp link of negotiation in described new Bundle;
After creating a described new Bundle, upgrade described Bundle information table, the corresponding relation of described second communication end EPD and described new Bundle is updated in table.
2. the method for claim 1, is characterized in that, the ppp link of described negotiation adds after in described Bundle, and the Network Control Protocol (NCP) of carrying out described Bundle is consulted.
3. the method for claim 1, is characterized in that, during negotiation, described first communication ends obtains the process of the end points identification mark EPD of second communication end:
End points identification mark (EPD) configuration parameter generated is noticed by EPD option and is sent to described first communication ends by described second communication end, and wherein, described EPD configuration parameter have recorded the configuration information of the EPD value of dynamic ppp link.
4. the method for claim 1, is characterized in that, consult for LCP (LCP) consult time, described first communication ends resolve receive LCP bag, extract and resolve EPD option value, obtaining described EPD.
5. Multi-Link Point-to-Point Protocol (MLPPP) dynamic binding system, it is characterized in that, this system comprises: the first communication ends, second communication end:
The enable module of described first communication ends and second communication end, for the function of enables dynamic MLPPP binding;
The end points identification mark acquisition module of described first communication ends, for when consulting, obtains the end points identification mark (EPD) of second communication end;
The information table generation module of described first communication ends, for the EPD configuration parameter according to acquisition, link generation bundle (Bundle) information table, wherein, the corresponding relation described in described Bundle information table record between second communication end EPD and the Bundle of described first communication ends;
The link management module of described first communication ends, for according to described corresponding relation, adds the ppp link of negotiation in described Bundle;
If there is not described corresponding relation, then the link management module of described first communication ends is also for creating a new Bundle, the ppp link of negotiation is joined in described new Bundle;
Described first communication ends also comprises information table update module, for after the described new Bundle of establishment one, upgrades described Bundle information table, is updated in table by the corresponding relation of described second communication end EPD and described new Bundle.
6. system as claimed in claim 5, it is characterized in that, described first communication ends also comprises negotiation module, and for adding after in described Bundle in the ppp link of described negotiation, the Network Control Protocol (NCP) of carrying out described Bundle is consulted.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010571017.4A CN102487398B (en) | 2010-12-02 | 2010-12-02 | Multi link point to point protocol (MLPP) dynamically binding method and system |
| PCT/CN2011/080089 WO2012071937A1 (en) | 2010-12-02 | 2011-09-23 | Method, system and communication terminal for mlppp dynamic binding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010571017.4A CN102487398B (en) | 2010-12-02 | 2010-12-02 | Multi link point to point protocol (MLPP) dynamically binding method and system |
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| CN102487398A CN102487398A (en) | 2012-06-06 |
| CN102487398B true CN102487398B (en) | 2015-04-01 |
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| CN104219111B (en) * | 2013-05-31 | 2018-02-23 | 中国电信股份有限公司 | Link bundling method and communication system based on MLPPP |
| CN104038650B (en) * | 2014-05-23 | 2017-12-29 | 新华三技术有限公司 | A kind of link bundling method and apparatus |
| CN104410589A (en) * | 2014-11-05 | 2015-03-11 | 武汉烽火网络有限责任公司 | Method for realizing MLPPP binding of cross-board POS interfaces on high-end routers |
| CN105812220A (en) * | 2014-12-31 | 2016-07-27 | 北京华为数字技术有限公司 | Number transmitting method, device and terminal |
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| CN101582902A (en) * | 2009-05-25 | 2009-11-18 | 中兴通讯股份有限公司 | Link aggregation method and device |
| CN101784090A (en) * | 2009-01-16 | 2010-07-21 | 华为终端有限公司 | Method and terminal for binding a plurality of wireless access links with fixed network links |
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| US7801023B2 (en) * | 2007-09-25 | 2010-09-21 | Alcatel Lucent | Mechanism for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784090A (en) * | 2009-01-16 | 2010-07-21 | 华为终端有限公司 | Method and terminal for binding a plurality of wireless access links with fixed network links |
| CN101582902A (en) * | 2009-05-25 | 2009-11-18 | 中兴通讯股份有限公司 | Link aggregation method and device |
Non-Patent Citations (1)
| Title |
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| PPP Link Balancing Detection (LBD);J.Carlson;《draft-ietf-pppext-lbd-03.txt》;20010731;第5-6页 * |
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| CN102487398A (en) | 2012-06-06 |
| WO2012071937A1 (en) | 2012-06-07 |
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