CN102158419B - In home gateway, realize the method for packet expedited forwarding - Google Patents
In home gateway, realize the method for packet expedited forwarding Download PDFInfo
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- CN102158419B CN102158419B CN201110133887.8A CN201110133887A CN102158419B CN 102158419 B CN102158419 B CN 102158419B CN 201110133887 A CN201110133887 A CN 201110133887A CN 102158419 B CN102158419 B CN 102158419B
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Abstract
In home gateway, realize the method for packet expedited forwarding, by the cpu in home gateway, packet is carried out realizing in the process of routing rule coupling, key is: in the switch module of home gateway, set up packet input, output interface and routing rule memory, packet just mates with the rule of storing in route rule memory in switch module after coming in, if can the match is successful, directly from switch module, forward, if mate unsuccessful, will enter linux protocol stack, forward by linux protocol stack, and this matched rule is recorded in the rule list of routing rule memory, while having again next time similar packet to pass through, just can directly forward by switch module. reach in this way hardware-accelerated object, in accelerator, do not take the resource of cpu, greatly improve the forwarding speed of packet.
Description
Technical field
The invention belongs to data communication technology field, relate to packet in a kind of family gateway equipment and addThe method that speed forwards.
Background technology
Along with the develop rapidly of network technology, the kind of family gateway equipment is more and more, and people coupleThe performance requirement of home gateway product is also more and more higher. The forwarding side of packet in traditional home gatewayFormula is all will be by the cpu of home gateway, and the protocol stack that enters into linux forwards, and packet is logicalWhile crossing gateway, a lot of paths and relevant rule match be passed through, a large amount of time will be consumed like this,Especially in the packet short time that some types are identical, repeatedly need to forward, have a strong impact on packet and turnThe frequency of sending out and the performance of gateway. If can expect one by packet identical these types fastThe method forwarding, is a a progressive step again to the quality of family gateway equipment. In prior artHave the mode that adopts software to accelerate, the problem that still takies cpu resource still can't resolve, cpuOccupancy is too high, can have influence on the contrary the speed of data retransmission.
Summary of the invention
The object of the invention is in home gateway, to realize and turning fast in order to solve various packetsThe technical barrier of sending out, has designed a kind of method that realizes packet expedited forwarding in home gateway, logicalCross the memory that increases an interim storage routing rule in switch module, make in protocol stackThe packet of process directly mates by switch module, improves forwarding speed.
The present invention be realize goal of the invention adopt technical scheme be in home gateway, to realize packetThe method of expedited forwarding, carries out the mistake of routing rule coupling to packet by the cpu in home gatewayIn journey, realize, key is: in the switch module of home gateway, set up packet input, output connectsMouth and routing rule memory, carry out following steps on this basis:
When a, home gateway receive the packet of sending in network, by packet, input connects packetMouth is sent to switch module;
The sequence number of the mark code in b, switch module identification data packet encoder decision data bag ownership,Search the routing rule of this package forward of storing in routing rule memory according to coding sequence number,Join the rear direct output interface by switch module and directly after output, skipped to steps d, if do not foundThe corresponding coding of packet, carries out step c;
C, first packet is carried out to coding and sorting order, and by package forward the protocol stack to cpu, logicalCross CPU output, switch module records the routing rule of this packet in protocol stack, and is stored inIn routing rule memory, back up, for subsequent use while once forwarding on this packet;
D, complete routing rule matching process.
Packet after coming in just with switch module in the rule of storing in route rule memory carry outJoin, if can the match is successful, directly from switch module, forward, if coupling does not becomeMerit, will enter linux protocol stack, forwards by linux protocol stack, and by these coupling ruleBe recorded in the rule list of routing rule memory, while having again next time similar packet to pass through, justCan directly forward by switch module, reach in this way hardware-accelerated object,In accelerator, do not take the resource of cpu, greatly improve the forwarding speed of packet.
Brief description of the drawings
Fig. 1 is method flow diagram of the present invention.
Detailed description of the invention
Referring to Fig. 1, in home gateway, realize the method for packet expedited forwarding, in home gatewayCpu packet is carried out in the process of routing rule coupling, realize, key is: at home gatewayIn switch module, set up packet input, output interface and routing rule memory, on this basisOn carry out following steps:
When a, home gateway receive the packet of sending in network, by packet, input connects packetMouth is sent to switch module;
The sequence number of the mark code in b, switch module identification data packet encoder decision data bag ownership,Search the routing rule of this package forward of storing in routing rule memory according to coding sequence number,Join the rear direct output interface by switch module and directly after output, skipped to steps d, if do not foundThe corresponding coding of packet, carries out step c;
C, first packet is carried out to coding and sorting order, and by package forward the protocol stack to cpu, logicalCross cpu output, switch module records the routing rule of this packet in protocol stack, and is stored inIn routing rule memory, back up, for subsequent use while once forwarding on this packet;
D, complete routing rule matching process.
Above-mentioned step also comprises: the routing rule having recorded in routing rule memory adopts time delay to deleteExcept mode.
The present invention in the specific implementation, packet after coming in just with switch module in route rale storeThe rule of storing in device is mated, if can the match is successful, directly from switch module, entersRow forwards, if mate unsuccessfully, will enter linux protocol stack, is undertaken by linux protocol stackForward, and this matched rule is recorded in the rule list of routing rule memory, have again class next timeLike packet by time, just can directly forward by switch module. If entered through one sectionBetween do not have relevant packet to pass through, relevant rule will be overtime and be deleted from rule list, due toSwitch module is in the incipient stage of packet, so the rule of coupling can not be too many, too many words are looked intoThe time of looking for can be very long, adds the load of large memories, affects so on the contrary performance.
Claims (2)
1. in home gateway, realize the method for packet expedited forwarding, by the CPU in home gatewayPacket is carried out in the process of routing rule coupling, realize, it is characterized in that: in the friendship of home gatewayIn the module of changing planes, set up packet input, output interface and routing rule memory, on this basisCarry out following steps:
When a, home gateway receive the packet of sending in network, by packet, input connects packetMouth is sent to switch module;
The sequence number of the mark code in b, switch module identification data packet encoder decision data bag ownership,Search the route rule of this package forward of storing in routing rule memory according to mark code and sequence number, mate the rear direct output interface by switch module and directly after output, skipped to steps d, ifDo not find the sequence number of packet ownership, carry out step c;
C, first packet is carried out to coding and sorting order, and by package forward the protocol stack to CPU,Export by CPU, switch module records the routing rule of this packet in protocol stack, and storageIn routing rule memory, back up, for subsequent use while once forwarding on this packet;
D, complete routing rule matching process.
2. the method that realizes packet expedited forwarding in home gateway according to claim 1,It is characterized in that: the routing rule having recorded in described routing rule memory adopts time delay deletion sideFormula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133887.8A CN102158419B (en) | 2011-05-23 | 2011-05-23 | In home gateway, realize the method for packet expedited forwarding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133887.8A CN102158419B (en) | 2011-05-23 | 2011-05-23 | In home gateway, realize the method for packet expedited forwarding |
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| Publication Number | Publication Date |
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| CN102158419A CN102158419A (en) | 2011-08-17 |
| CN102158419B true CN102158419B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110133887.8A Active CN102158419B (en) | 2011-05-23 | 2011-05-23 | In home gateway, realize the method for packet expedited forwarding |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624628B (en) * | 2012-03-22 | 2016-12-14 | 深圳市共进电子股份有限公司 | A kind of home gateway and the method realizing packet fast-forwarding thereof |
| CN102694727A (en) * | 2012-05-21 | 2012-09-26 | 太仓市同维电子有限公司 | Method and device for realizing transmission acceleration of network data packets |
| CN102946347B (en) * | 2012-12-07 | 2015-07-01 | 烽火通信科技股份有限公司 | Method and device for accelerating to process local data packet by using Linux system |
| CN105516017A (en) * | 2015-11-20 | 2016-04-20 | 上海斐讯数据通信技术有限公司 | Directed acceleration method and device, and terminal equipment |
| CN107682267B (en) * | 2017-09-21 | 2020-04-28 | 烽火通信科技股份有限公司 | Network data forwarding method and system of Linux equipment |
| CN113746671B (en) * | 2020-01-19 | 2023-05-26 | 烽火通信科技股份有限公司 | Service acceleration method, terminal equipment and home gateway |
| CN111600812B (en) * | 2020-05-13 | 2022-10-25 | 优刻得科技股份有限公司 | Message processing method, processing device, readable medium and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359885C (en) * | 2002-06-24 | 2008-01-02 | 武汉烽火网络有限责任公司 | Method for forwarding data by strategic stream mode and data forwarding equipment |
| CN102006242A (en) * | 2010-12-24 | 2011-04-06 | 山石网科通信技术（北京）有限公司 | Routing method of router and router |
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2011
- 2011-05-23 CN CN201110133887.8A patent/CN102158419B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359885C (en) * | 2002-06-24 | 2008-01-02 | 武汉烽火网络有限责任公司 | Method for forwarding data by strategic stream mode and data forwarding equipment |
| CN102006242A (en) * | 2010-12-24 | 2011-04-06 | 山石网科通信技术（北京）有限公司 | Routing method of router and router |
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| CN102158419A (en) | 2011-08-17 |
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Address after: 518000, Shenzhen, Guangdong province Nanshan District Shekou Nanhai Road 1019, 100 surplus medical instrument Park, two floor Applicant after: Shenzhen Gongjin Electronics Co., Ltd. Address before: 518000, Shenzhen, Guangdong province Nanshan District Shekou Nanhai Road 1019, 100 surplus medical instrument Park, two floor Applicant before: Shenzhen Gongjin Electronics Co., Ltd. |
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