CN101686172B - Method, system and equipment for selecting gateway node - Google Patents

Method, system and equipment for selecting gateway node Download PDF

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Publication number
CN101686172B
CN101686172B CN2008101488290A CN200810148829A CN101686172B CN 101686172 B CN101686172 B CN 101686172B CN 2008101488290 A CN2008101488290 A CN 2008101488290A CN 200810148829 A CN200810148829 A CN 200810148829A CN 101686172 B CN101686172 B CN 101686172B
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node
gateway
local node
local
gateway function
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CN101686172A (en
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施广宇
龙有水
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Jingjiang City Chengzhong Village Investment And Construction Co ltd
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the invention discloses a method, a system and equipment for selecting gateway nodes, wherein the method comprises the following steps: when the gateway node monitors the overload of the gateway node, a local node with the gateway function is selected according to the local node information with the gateway function; and the gateway node sends an interconnection joining invitation to the selected local node with the gateway function, so that the selected local node with the gateway function joins the interconnection DHT to become a new gateway node according to the interconnection joining invitation. In the embodiment of the invention, when the gateway node is overloaded, the gateway node invites the local node with the gateway function to join the interconnection DHT to become a new gateway node, thereby realizing the load balance of the gateway node.

Description

A kind of system of selection of gateway node, system and equipment
Technical field
The present invention relates to communication technical field, relate in particular to a kind of system of selection, system and equipment of gateway node.
Background technology
Along with more and more P2P (Peer to Peer, point-to-point) deployment of system, how at a plurality of P2P DHT (Distributed Hash Table, distributed hashtable) fast and effectively shared resource and search between becomes the key technical problem that the content issue of P2P under the communication network environment of management, streaming media etc. are used.
Prior art adopts virtual server technology to carry out shared resource and search usually between a plurality of P2P DHT, and virtual server is equivalent to the node among the DHT, the corresponding a plurality of virtual servers of each physical node.When physical node transships, one or more virtual server that this physical node is corresponding will be transferred to non-overload node from the overload node, and the transfer of virtual server can be finished with leaving and adding operation among the DHT.
In realizing process of the present invention, the inventor finds to exist in the prior art following shortcoming:
In the prior art, the corresponding a plurality of virtual servers of physical node, the maintenance costs of DHT will be multiplied.And the overload of node load may be by on the node in another DHT among certain DHT.
Summary of the invention
The embodiment of the invention provides a kind of system of selection, system and device of gateway node, has realized the load balance of gateway node.
The embodiment of the invention provides a kind of system of selection of gateway node, may further comprise the steps:
During gateway node monitoring self traffic overload, select the local node with gateway function according to address information and the available information on load of the local node information with gateway function;
Described gateway node sends to selecteed local node with gateway function and adds interconnected invitation, and making described selecteed local node with gateway function add interconnected DHT according to the interconnected invitation of described adding becomes new gateway node; Described local node is the node that has a plurality of local DHT subsystems.
The embodiment of the invention provides a kind of access method of gateway node, it is characterized in that, may further comprise the steps:
When the gateway node of the traffic overload of local node access acquiescence is failed, to the new gateway node address list of local node inquiry corresponding to described keyword;
The cost distance of the gateway node of described local node in isp server inquiry and the described gateway node address list;
Described local node obtains the available information on load of the gateway node in the described gateway node address list;
Described local node selects a gateway node as new default gateway node according to described cost distance and available information on load;
Described local node is accessed described new default gateway node.
The embodiment of the invention provides a kind of selective system of gateway node, comprises gateway node and the local node with gateway function, wherein:
Described gateway node when being used for monitoring self traffic overload, according to local node with gateway function of the local node Information Selection with gateway function, sending to selecteed local node with gateway function and to add interconnected invitation;
Described local node with gateway function is used for receiving the interconnected invitation of described adding from gateway node, and adding interconnected DHT according to the interconnected invitation of described adding becomes new gateway node.
The embodiment of the invention provides a kind of selective system of gateway node, comprising:
Monitoring means, for detection of self the load whether transship;
Selected cell is used for when described monitoring means detects traffic overload, selects the local node with gateway function according to address information and the available information on load of the local node information with gateway function;
Inviting unit is used for sending the interconnected invitation of adding to the local node with gateway function of being selected by described selected cell, makes selecteed local node with gateway function add the interconnected new gateway node that becomes according to the interconnected invitation of described adding.
The embodiment of the invention provides a kind of local node equipment with gateway function, comprising:
Receiving element is used for receiving from the interconnected invitation of the adding of gateway node;
Add the unit, the interconnected invitation of adding that receives according to described receiving element adds interconnected DHT becomes new gateway node; Described local node is the node that has a plurality of local DHT subsystems.
The embodiment of the invention provides a kind of local node equipment, comprising:
The address list query unit is when being used for accessing the gateway node failure of the traffic overload of giving tacit consent to, to the new gateway node address list of local node inquiry corresponding to described keyword;
Cost Distance query unit is for the cost distance of inquiring about the gateway node of the gateway node address list that obtains with described address list query unit to isp server;
The information on load acquiring unit is used for obtaining the available information on load of the gateway node of the gateway node address list that described address list query unit obtains;
Selected cell is used for the available information on load that the cost distance that obtains according to described cost Distance query unit and described information on load acquiring unit obtain and selects a gateway node as new default gateway node;
Addressed location is used for accessing the new default gateway node that described selected cell is selected.
In the embodiments of the invention, gateway node has a gateway function by invitation when self traffic overload local node adds interconnected DHT becomes new gateway node, has realized the load balance of gateway node.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system of selection flow chart of a kind of gateway node in the embodiment of the invention;
Fig. 2 is selection and the access method flow chart of a kind of gateway node in the embodiment of the invention;
Fig. 3 is the selective system flow chart of a kind of gateway node in the embodiment of the invention;
Fig. 4 is the structure chart of a kind of gateway node equipment in the embodiment of the invention;
Fig. 5 is a kind of local node equipment structure chart with gateway function in the embodiment of the invention;
Fig. 6 is a kind of local node equipment structure chart in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention is applied in the scene that has a plurality of local DHT subsystems, part of nodes has the Interworking GateWay function in each local DHT subsystem, have in the local DHT node of Interworking GateWay function a part and participate in interconnectedly as the Interworking GateWay node, realize sharing of resource and search by the Interworking GateWay node between a plurality of local DHT.
The embodiment of the invention provides a kind of system of selection of gateway node, as shown in Figure 1, may further comprise the steps:
Step 101 is during gateway node monitoring self traffic overload, according to local node with gateway function of the local node Information Selection with gateway function.
Step 102, described gateway node are sent to selecteed local node with gateway function and are added interconnected invitation, and making described selecteed local node with gateway function add interconnected DHT according to the interconnected invitation of described adding becomes new gateway node.
In the embodiments of the invention, gateway node has a gateway function by invitation when self traffic overload local node adds interconnected DHT becomes new gateway node, has realized the load balance of gateway node.
The selection of the another kind of gateway node that the embodiment of the invention provides and access method as shown in Figure 2, may further comprise the steps:
Step 201, each DHT territory have at least a local DHT node with Interworking GateWay function to add interconnected DHT with manual switching mode becomes gateway node.
Step 202, gateway node is registered to address information in the local node by keyword.In the enforcement keyword key can take off example: Key=(wherein IDspace is Hash spatial dimension number for [IDspace/M]+k) * M (k=0,1,2 .., K-1), k≤IDspace/M, and M is unit Hash spatial parameter, k for the registration umber.
Step 203, local node is to local node inquiry local gateway node address list corresponding to keyword, by third party's interface (such as ISP (Internet Service Provider, Internet service provider) interface that provides) the cost distance of each gateway node in inquiry and the gateway node address list, and obtain the available information on load of the gateway node in the described gateway node address list, the large gateway node of the cost little and available load of distance is made as the acquiescence Interworking GateWay.
Step 204, gateway node is collected address information and the available information on load of the local node that has the Interworking GateWay function and be not activated.
Step 205, gateway node Real-Time Monitoring load condition when monitoring traffic overload, is selected a node from the local node tabulation with gateway function of collecting.The standard of selecting can for local node with Interworking GateWay function can with load and cost distance (by the third party's interface inquiry that provides to ISP obtain with the cost of Interworking GateWay apart from), preferably, select the large local node with gateway function of the cost little and available load of distance.Produce a new Interworking GateWay sign, requiring selecteed local node to use this Interworking GateWay sign to activate the Interworking GateWay function and add interconnected DHT becomes new gateway node.
Overload condition mainly comprises disposal ability overload (such as cpu busy percentage, memory usage) and bandwidth ability overload.Wherein bandwidth ability overload is the total bandwidth overload of three kinds of flows: the first for this interlink node by the local node access flow that causes of Interworking GateWay node by default; The resource access flow that the user resources that the second is stored for this interlink node cause; The routing traffic that the third causes as the routing node of other interlink node for this interlink node.
Step 206, the new Interworking GateWay node that activates adds interconnected DHT, and self address information is registered in the local node with keyword.In the enforcement keyword key can get Key=([IDspace/M]+k) * M (k=0,1,2 .., K-1), wherein IDspace is Hash spatial dimension number, M is unit Hash spatial parameter, k for the registration umber.
Step 207, the gateway node failure of the traffic overload of local node access acquiescence, the then new gateway node that produces of access.
Local node is to the new gateway node address list of local node inquiry corresponding to keyword; And the cost distance of the gateway node in isp server inquiry and the described gateway node address list; Obtain the available information on load of the gateway node in the new gateway node address list; Select a gateway node as new default gateway node and access new default gateway node according to described cost distance and available information on load, preferred, the large gateway node of the cost little and available load of distance is made as the acquiescence Interworking GateWay.
In the embodiments of the invention, gateway node has a gateway function by invitation when self traffic overload local node adds interconnected DHT becomes new gateway node, has realized the load balance of gateway node.
The system that the embodiment of the invention provides a kind of gateway node to select as shown in Figure 3, comprises gateway node 301 and the local node 302 with gateway function, wherein:
Described gateway node 301 when being used for monitoring self traffic overload, has the local node 302 of gateway function according to one of the local node Information Selection with gateway function, sends to selecteed local node 302 with gateway function to add interconnected invitation;
Described local node 302 with gateway function is used for receiving the interconnected invitation of described adding from gateway node 301, adds the interconnected new gateway node that becomes according to the interconnected invitation of described adding.
In the embodiments of the invention, by the system that provides a kind of gateway node to select, gateway node has a gateway function by invitation when self traffic overload local node adds interconnected DHT becomes new gateway node, has realized the load balance of gateway node.
The embodiment of the invention provides a kind of gateway node equipment, as shown in Figure 4, comprising:
Monitoring means 401, for detection of self the load whether transship;
Selected cell 402 is used for when described monitoring means 401 detects traffic overload, according to local node with gateway function of the local node Information Selection with gateway function;
Inviting unit 403, be used for sending the interconnected invitation of adding to the local node with gateway function of being selected by described selected cell 402, make described selecteed local node with gateway function add the interconnected new gateway node that becomes according to the interconnected invitation of described adding.
Wherein, also comprise:
Collector unit 404 is used for collecting described address information and available information on load with local node of gateway function.
Wherein, also comprise:
Function maintenance unit 405 is for the basic functions such as registration, route and inquiry of safeguarding local and interconnected DHT.
Wherein, selected cell 402 also comprises:
Inquiry subelement 406 is used for inquiring about described gateway node and described cost distance with local node of gateway function according to the address information with local node of gateway function to isp server;
Process subelement 407, the available information on load that is used for the cost distance that obtains according to described inquiry subelement 406 and the local node with gateway function is selected the local node with Interworking GateWay function.
Wherein, the described inviting unit 403 concrete interconnected invitations of adding that are used for comprising to described local node transmission with Interworking GateWay function new Interworking GateWay sign make described selecteed local node with Interworking GateWay function use described new Interworking GateWay sign to add the interconnected new gateway node that becomes
In the embodiments of the invention, by a kind of gateway node is provided, gateway node has a gateway function by invitation when self traffic overload local node adds interconnected DHT becomes new gateway node, has realized the load balance of gateway node.
The embodiment of the invention provides a kind of local node equipment with gateway function, as shown in Figure 5, comprising:
Receiving element 501 is used for receiving the interconnected invitation of described adding from gateway node,
Add unit 502, the interconnected invitation of adding that receives according to described receiving element 501 adds the interconnected new gateway node that becomes.
Wherein, also comprise:
Address registration unit 503, be used for described address information with local node of gateway function is registered to local node corresponding to keyword, described keyword is ([IDspace/M]+k) * M, wherein, IDspace is Hash spatial dimension number, M is unit Hash spatial parameter, and k is the registration umber.
Wherein, also comprise:
Function maintenance unit 504 is for the basic functions such as registration, route and inquiry of safeguarding local and interconnected DHT.
In the embodiments of the invention, by a kind of local node with gateway function is provided, gateway node has a gateway function by invitation when self traffic overload local node adds interconnected DHT becomes new gateway node, has realized the load balance of gateway node.
The embodiment of the invention provides a kind of local node equipment, as shown in Figure 6, comprising:
Address list query unit 601 is when being used for accessing the gateway node failure of the traffic overload of giving tacit consent to, to the new gateway node address list of local node inquiry corresponding to described keyword;
Cost Distance query unit 602 is for the cost distance of inquiring about the gateway node of the gateway node address list that obtains with described address list query unit 601 to isp server;
Information on load acquiring unit 603 is used for obtaining the available information on load of the gateway node of the gateway node address list that described address list query unit 601 obtains;
Selected cell 604 is used for the available information on load that the cost distance that obtains according to described cost Distance query unit 602 and described information on load acquiring unit 603 obtain and selects a gateway node as new default gateway node;
Addressed location 605 is used for accessing the new default gateway node that described selected cell 604 is selected.
Wherein, also comprise:
Function maintenance unit 606 is for the basic functions such as registration, route and inquiry of safeguarding local DHT.
In the embodiments of the invention, by a kind of local node is provided, when access default gateway node failure, selects and access new default gateway node, realized the load balance of gateway node.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform, based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
In a word, the above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the system of selection of a gateway node is characterized in that, may further comprise the steps:
During gateway node monitoring self traffic overload, select the local node with gateway function according to address information and the available information on load of the local node information with gateway function;
Described gateway node sends to selecteed local node with gateway function and adds interconnected invitation, and making described selecteed local node with gateway function add interconnected distributed hashtable DHT according to the interconnected invitation of described adding becomes new gateway node;
Described local node is the node that has a plurality of local DHT subsystems.
2. the method for claim 1 is characterized in that, before described gateway node monitoring self traffic overload, also comprises:
Described gateway node is collected described address information and available information on load with local node of gateway function.
3. the method for claim 1 is characterized in that, described gateway node monitoring self traffic overload comprises:
Described gateway node monitoring self disposal ability overload or bandwidth ability overload; Described disposal ability overload is central processing unit utilance overload or memory usage overload; Described bandwidth ability overload is the total bandwidth overload of access flow, resource access flow and routing traffic.
4. the method for claim 1 is characterized in that, described gateway node comprises according to described local node with gateway function of local node Information Selection with gateway function:
Described gateway node is inquired about and described cost distance with local node of gateway function to Internet service provider isp server according to described address information with local node of gateway function;
Described gateway node is selected the local node with gateway function according to described cost distance and described available information on load with local node of gateway function.
5. the method for claim 1 is characterized in that, described gateway node sends the interconnected invitation of adding to selecteed local node with gateway function and comprises:
Described gateway node sends the interconnected invitation of adding that comprises new Interworking GateWay sign to described local node with Interworking GateWay function, and making described selecteed local node with Interworking GateWay function use described new Interworking GateWay sign to add interconnected DHT becomes new gateway node.
6. the method for claim 1 is characterized in that, described gateway node makes described selecteed local node with gateway function add interconnected DHT according to the interconnected invitation of described adding to be become after the new gateway node, also comprises:
Described new gateway node is registered to its address information in local node corresponding to keyword.
7. the selective system of a gateway node is characterized in that, comprising:
Monitoring means, for detection of self the load whether transship;
Selected cell is used for when described monitoring means detects traffic overload, selects the local node with gateway function according to address information and the available information on load of the local node information with gateway function;
Inviting unit is used for sending the interconnected invitation of adding to the local node with gateway function of being selected by described selected cell, and making selecteed local node with gateway function add interconnected DHT according to the interconnected invitation of described adding becomes new gateway node;
Described local node is the node that has a plurality of local DHT subsystems.
8. system as claimed in claim 7 is characterized in that, also comprises:
Collector unit is used for collecting described address information and available information on load with local node of gateway function.
9. system as claimed in claim 7 is characterized in that, described selected cell comprises:
The inquiry subelement is used for inquiring about and described cost distance with local node of gateway function to Internet service provider isp server according to the address information of the local node with gateway function;
Process subelement, the available information on load that is used for the cost distance that obtains according to described inquiry subelement and the local node with gateway function is selected the local node with gateway function.
10. system as claimed in claim 7, it is characterized in that, described inviting unit specifically is used for sending the interconnected invitation of adding that comprises new Interworking GateWay sign to described local node with gateway function, and making selecteed local node with Interworking GateWay function use described new Interworking GateWay sign to add interconnected DHT becomes new gateway node.
CN2008101488290A 2008-09-27 2008-09-27 Method, system and equipment for selecting gateway node Withdrawn - After Issue CN101686172B (en)

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CN103209136A (en) * 2012-01-11 2013-07-17 中兴通讯股份有限公司 Network load control method and register server
CN110753002B (en) * 2019-09-29 2023-04-07 北京浪潮数据技术有限公司 Traffic scheduling method and device
CN113572591B (en) * 2020-04-28 2023-09-29 北京科东电力控制系统有限责任公司 Real-time high concurrency safety access device and access method for intelligent energy service system

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