CN103227752A - Method and device for realizing policy routing in Ethernet switch chip - Google Patents
Method and device for realizing policy routing in Ethernet switch chip Download PDFInfo
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- CN103227752A CN103227752A CN2013101783447A CN201310178344A CN103227752A CN 103227752 A CN103227752 A CN 103227752A CN 2013101783447 A CN2013101783447 A CN 2013101783447A CN 201310178344 A CN201310178344 A CN 201310178344A CN 103227752 A CN103227752 A CN 103227752A
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Abstract
The invention discloses a method and device for realizing policy routing in an Ethernet switch chip, which relates to the technical field of network communication, and solves the problem that the message forwarding efficiency is low since the existing policy routing needs to obtain the IP (Internet protocol) address of a network application server and perform routing information conversion. The method disclosed by the invention comprises the following steps of: configuring a policy routing table based on the information such as a message source-based IP address, a TCP/UDP (transmission control protocol/user datagram protocol) source port number, a TCP/UDP destination port number, a DSCP (differentiated services code point) value and the like to obtain the second exit information of corresponding policy routing; and searching a common routing table to obtain corresponding first exit information. The method and device disclosed by the invention can conveniently realize policy routing based on different user sources, different network applications and different service quality requirements, and also can flexibly select the common routing result information or policy routing information; and the realization is simple, the system cost is low, and the routing flexibility and message forwarding efficiency can be greatly improved.
Description
Technical field
The present invention relates to network communications technology field, especially relate to the implementation method and the device of tactful route in a kind of Ethernet switching chip.
Background technology
The traditional method for routing of Ethernet is to use routing table, carries out message forwarding according to purpose IP address.In recent years, along with the develop rapidly of Internet technology, the application of carrying in the network constantly increases, and for example video, voice, P2P application etc. use traditional method for routing to transmit flexibly according to the different application type.The strategy route is a kind of routing forwarding of packet more flexibly technology, not only can carry out routing forwarding according to traditional purpose IP address, can also carry out routing forwarding according to information such as the source IP address of message, tcp port number, udp port number, DSCP.
Present technology generally is to obtain corresponding to the tabulation of the server ip address of each application protocol and the pre-configured tactful routing table corresponding to application protocol by router to generate tactful routing table based on purpose IP address.After router receives data flow, resolve the purpose IP address that changes data flow, obtain route outlet information by the tactful routing table inquiry that generates again.
Above-mentioned policy routing method needs router to obtain the IP address list corresponding with the network application agreement, and the tactful route relevant with application protocol is converted to the tactful route based on purpose IP, and in fact the IP address of network application server is difficult to accurately obtain, and need carry out the routing iinformation conversion, the message forward efficiency is not high.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, implementation method and the device of realizing the tactful route simple, that system cost is low, the route flexibility is high in a kind of Ethernet switching chip are provided, transmit by carrying out message, improve the message forward efficiency based on information such as the source IP address of message, tcp port number, udp port number, DSCP values.
For achieving the above object, the present invention proposes following technical scheme: the implementation method of tactful route in the Ethernet switching chip may further comprise the steps:
A, reception IP message also parse message characteristic;
B, address search obtains the corresponding first outlet information according to purpose IP;
C, judge whether three layer interface attributes of Ethernet switching chip enable tactful route, if enable, then, obtain the corresponding second outlet information according to the described message characteristic search strategy routing table that parses, if do not enable, then directly use the first outlet information to carry out message and transmit;
D, carry out message according to the first outlet information or the second outlet information and transmit.
Described message characteristic comprises at least: source IP address, purpose IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP value.
The implementation method of tactful route also comprises in the described Ethernet switching chip:
Whether E, selection use the described second outlet information, if select to use, then carry out message according to the described second outlet information and transmit, and do not use as if not selecting, and then carry out message according to the described first outlet information and transmit.
Described Ethernet switching chip adopts asic chip (special integrated chip) or FPGA (field programmable gate array) or NP (network processing unit).
The implement device of tactful route in the Ethernet switching chip comprises:
The packet parsing module is used for the IP packet parsing that receives is gone out described message characteristic;
Common routing message searching module is used for that address search obtains the corresponding first outlet information according to purpose IP;
The strategy routing message searching module, the described message characteristic search strategy routing table according to parsing obtains the corresponding second outlet information.
Described message characteristic comprises at least: source IP address, purpose IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP value.
The beneficial effect of the implementation method of tactful route and device is in the Ethernet switching chip of the present invention:
(1) IP address list that does not need to obtain network application agreement correspondence is converted to the tactful route based on purpose IP address, can transmit by carrying out message, improve the message forward efficiency greatly based on information such as the source IP address of message, tcp port number, udp port number, DSCP values;
(2) can realize different carrier network outlets is selected in different user source, heterogeneous networks application type and different service quality requirement, the flexibility that improves routing forwarding greatly realizes that simply system cost is low.
Description of drawings
Fig. 1 is the implementation method schematic flow sheet of tactful route in a kind of Ethernet switching chip of the present invention;
Fig. 2 is the implement device module diagram of tactful route in a kind of Ethernet switching chip of the present invention;
Fig. 3 is the implementation method of tactful route in the Ethernet switching chip of the present invention and the application schematic diagram of device;
Embodiment
Below in conjunction with accompanying drawing of the present invention, the technical scheme of the embodiment of the invention is carried out clear, complete description.
In conjunction with shown in Figure 1, the implementation method of tactful route in disclosed a kind of Ethernet switching chip may further comprise the steps:
A, reception IP message also parse message characteristic, and message characteristic comprises at least: source IP address, purpose IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP value;
Wherein, source IP address can be distinguished different user sources, when the tactful route of carrying out based on the different user source, and the routing iinformation of the corresponding source IP address of configuration in tactful routing table; The TCP/UDP port numbers can be distinguished different application types, when carrying out the tactful route of using based on heterogeneous networks, and the routing iinformation of the corresponding TCP/UDP port numbers of configuration in tactful routing table; The DSCP value is used for distinguishing different quality of service requirements, when carrying out the quality of service policy route of using based on heterogeneous networks, the routing iinformation of the corresponding DSCP value of configuration in tactful routing table, and three kinds of application types can make up mutually, thereby realize different user source, heterogeneous networks application type and different service quality are required to select different carrier network outlets, the flexibility that improves routing forwarding greatly.
B, according to the common routing table of purpose IP address search, search the corresponding first outlet information that obtains;
C, judge whether three layer interface attributes of Ethernet switching chip enable tactful route, if enable tactful route, then according to the message characteristic that parses, as message characteristics such as message source IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP values, search the tactful routing table that is stored among the TCAM (three-state content addressing memory), obtain the second outlet information of corresponding tactful route,, then directly use the first outlet information to carry out message and transmit if do not enable tactful route;
Whether E, selection use the second outlet information, if select to use, then carry out message according to the described second outlet information and transmit, and do not use as if not selecting, and then carry out message according to the described first outlet information and transmit;
D, carry out message according to the first outlet information or the second outlet information and transmit, can carry out message flexibly and transmit, realize simply, system cost is low.
In conjunction with shown in Figure 2, the implement device of tactful route in disclosed a kind of Ethernet switching chip comprises:
The packet parsing module is used for the IP packet parsing that receives is gone out described message characteristic, and message characteristic comprises at least: source IP address, purpose IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP value;
Common routing message searching module is used for obtaining the corresponding first outlet information according to the common routing table of purpose IP address search;
The strategy routing message searching module, three layer interface attributes in Ethernet switching chip enable under the situation of tactful route, according to the described message characteristic search strategy routing table that parses, obtain the corresponding second outlet information, can select the first outlet information or the second outlet information to carry out message flexibly and transmit, improve the flexibility and the message forward efficiency of route greatly.
Illustrate, (the different user source is 3 to Fig. 3 among the figure for the application drawing of strategy route of the present invention, the different application network is 4, the different operators network is 3), as shown in Figure 3, the present invention can carry out based on the tactful route without user source, heterogeneous networks application and different service quality requirement, need not to obtain the IP address list corresponding and be converted to tactful routing table with the network application agreement, and three kinds of application types can make up mutually, realize simple, system cost is low, can improve the flexibility of routing forwarding greatly.
Technology contents of the present invention and technical characterictic have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; therefore; protection range of the present invention should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present invention and modifications, and contained by the present patent application claim.
Claims (6)
1. the implementation method of tactful route in the Ethernet switching chip is characterized in that: may further comprise the steps:
A, reception IP message also parse message characteristic;
B, address search obtains the corresponding first outlet information according to purpose IP;
C, judge whether three layer interface attributes of Ethernet switching chip enable tactful route, if enable, then, obtain the corresponding second outlet information according to the described message characteristic search strategy routing table that parses, if do not enable, then directly use the first outlet information to carry out message and transmit;
D, carry out message according to the first outlet information or the second outlet information and transmit.
2. the implementation method of tactful route is characterized in that in the Ethernet switching chip according to claim 1, and described message characteristic comprises at least: source IP address, purpose IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP value.
3. the implementation method of tactful route is characterized in that in the Ethernet switching chip according to claim 1, and the implementation method of tactful route also comprises in the described Ethernet switching chip:
Whether E, selection use the described second outlet information, if select to use, then carry out message according to the described second outlet information and transmit, and do not use as if not selecting, and then carry out message according to the described first outlet information and transmit.
4. the implementation method of tactful route is characterized in that in the Ethernet switching chip according to claim 1, and described Ethernet switching chip adopts asic chip (special integrated chip) or FPGA (field programmable gate array) or NP (network processing unit).
5. the implement device of tactful route in the Ethernet switching chip is characterized in that, comprising:
The packet parsing module is used for the IP packet parsing that receives is gone out described message characteristic;
Common routing message searching module is used for that address search obtains the corresponding first outlet information according to purpose IP;
The strategy routing message searching module, the described message characteristic search strategy routing table according to parsing obtains the corresponding second outlet information.
6. the implement device of tactful route is characterized in that in the Ethernet switching chip according to claim 5, and described message characteristic comprises at least: source IP address, purpose IP address, TCP/UDP source port number, TCP/UDP destination slogan, DSCP value.
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| CN104410576A (en) * | 2014-12-12 | 2015-03-11 | 上海斐讯数据通信技术有限公司 | Mixed type condition policy routing system and method |
| CN105245453A (en) * | 2014-06-20 | 2016-01-13 | 华为技术有限公司 | Method, device and system for establishing service link |
| CN108595731A (en) * | 2018-01-23 | 2018-09-28 | 盛科网络（苏州）有限公司 | The design method and device of dynamic entry in a kind of Ethernet chip |
| CN109547343A (en) * | 2019-01-04 | 2019-03-29 | 网宿科技股份有限公司 | A kind of traffic scheduling method and system |
| CN110912935A (en) * | 2019-12-18 | 2020-03-24 | 盛科网络（苏州）有限公司 | Method and device for realizing TCP/UDP session identification based on chip |
| CN111988226A (en) * | 2020-08-20 | 2020-11-24 | 深圳市龙信信息技术有限公司 | Multi-ISP link load balancing method, system and firewall |
| CN114500384A (en) * | 2020-11-11 | 2022-05-13 | 华为技术有限公司 | Communication method, device and system and electronic equipment |
| CN114884903A (en) * | 2022-04-29 | 2022-08-09 | 绿盟科技集团股份有限公司 | Data processing method, field programmable gate array chip and network safety equipment |
| CN115225591A (en) * | 2022-07-15 | 2022-10-21 | 井芯微电子技术(天津)有限公司 | Method for processing control message of exchange chip |
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| CN114884903A (en) * | 2022-04-29 | 2022-08-09 | 绿盟科技集团股份有限公司 | Data processing method, field programmable gate array chip and network safety equipment |
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| CN115225591A (en) * | 2022-07-15 | 2022-10-21 | 井芯微电子技术(天津)有限公司 | Method for processing control message of exchange chip |
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Application publication date: 20130731 |