CN101741664A - Method and device for realizing Ethernet interface system - Google Patents
Method and device for realizing Ethernet interface system Download PDFInfo
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- CN101741664A CN101741664A CN200910247070A CN200910247070A CN101741664A CN 101741664 A CN101741664 A CN 101741664A CN 200910247070 A CN200910247070 A CN 200910247070A CN 200910247070 A CN200910247070 A CN 200910247070A CN 101741664 A CN101741664 A CN 101741664A
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- ethernet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
Abstract
The invention discloses a method and a device for realizing an Ethernet interface system. The method comprises the following steps: setting one of a plurality of Ethernet ports of an Ethernet switch chip into a CPU port, and setting the rest ports into external ports, wherein the CPU port is connected with an Ethernet controller; respectively allocating MAC addresses and IP addresses to the plurality of external ports, receiving an IP data packet comprising a destination MAC address same as the MAC address of each external port by each external port; and setting the CPU port and each external port into a plurality of virtual local area network (VLAN) respectively, wherein the IP data packet received/sent by each external port carries a VLAN tag of a VLAN to which the external port belongs. Through the invention, the Ethernet interface system with a plurality of Ethernet interfaces can be realized by fewer Ethernet controllers, the system hardware cost is saved and the implementation complexity is reduced.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of Ethernet interface system's implementation method and implement device.
Background technology
On the Access Network communication equipment, use usually a plurality of independently Ethernet interfaces realize network element and control desk, network element and special installation (for example: line tester) and the IP network of network element internal system be connected.
In the prior art, mainly contain two kinds of implementation methods:
A kind of is to utilize the external suitable PHY chip of the built-in fast interface of processor to constitute network interface, this method is subjected to the restriction of the quantity available of the built-in fast interface of processor, interface and performance requirement to processor are higher, and, if processor does not have built-in external fast interface, then can not use this method.
Another kind of implementation method is the bus standard that utilizes processor to support, by plug-in several ethernet controllers of bus.Need several network interfaces, with regard to plug-in several ethernet controller chips.Usually the quantity of bus permission locking equipment is limited.Because PCB layout need be considered a plurality of ethernet controller chips and peripheral components thereof, cause PCB plate-making to increase no small difficulty; In addition, use more ethernet controller chip can improve system cost.
In sum, prior art exists the processor that does not have built-in external fast interface to realize that the Ethernet interface system cost is higher for a long time always or realizes complicated problems as can be known, therefore is necessary to propose improved technological means, solves this problem.
Summary of the invention
Because exist the processor that does not have built-in external fast interface to realize that the Ethernet interface system cost is higher or realize complicated problems in the prior art, for this reason, the invention provides a kind of Ethernet interface system's implementation method and implement device, wherein:
The implementation method of a kind of Ethernet interface system is provided according to the embodiment of the invention, this Ethernet interface system comprises: processor, ethernet controller, Ethernet switching chip, wherein, this Ethernet switching chip comprises a plurality of ethernet ports, and this implementation method comprises:
One of them is set to cpu port a plurality of ethernet ports of Ethernet switching chip, and all the other ports are set to outside port, and wherein, cpu port is connected with ethernet controller; Be respectively a plurality of outside port configuration MAC Address and IP address, each outside port receives the IP packet with target MAC (Media Access Control) address identical with its MAC Address; Cpu port is set to a plurality of virtual LAN VLAN with each outside port respectively, and wherein, the IP packet by outside port reception/transmission carries the VLAN sign of VLAN under this outside port.
Preferably, the IP packet by outside port reception/transmission carries the VLAN sign of VLAN under this outside port, and further comprise: the IP packet that outside port receives enters ethernet controller by cpu port; The VLAN sign that processor carries according to the IP packet is carried out follow-up forwarding processing, and before transmitting processing, divests the VLAN sign that this IP packet carries.
Preferably, the IP packet by outside port reception/transmission carries the VLAN sign of VLAN under this outside port, and further comprise: processor adds the VLAN sign with IP packet to be sent, and is sent to cpu port by ethernet controller; Cpu port is forwarded to corresponding outside port with this IP packet and sends according to the VLAN sign that the IP packet carries.
Preferably, Ethernet switching chip comprises 4 ethernet ports at least.
Preferably, this method further comprises: outside port is set for unknown unicast bag and broadcast packet speed limit and forbid that unknown unicast bag inundation is to cpu port.
Preferably, processor is connected by pci bus with ethernet controller chip.
The implement device of a kind of Ethernet interface system is provided according to the embodiment of the invention, this Ethernet interface system comprises: processor, ethernet controller, Ethernet switching chip, wherein, this Ethernet switching chip comprises a plurality of ethernet ports, and this implement device comprises:
Port is provided with module, be used for Ethernet switching chip a plurality of ethernet ports one of them be set to cpu port, all the other ports are set to outside port, wherein, cpu port is connected with ethernet controller; The address configuration module is used to be respectively a plurality of outside port configuration MAC Address and IP address, and each outside port receives the IP packet with target MAC (Media Access Control) address identical with its MAC Address; VLAN is provided with module, is used for cpu port and is set to a plurality of virtual LAN VLAN with each outside port respectively, and wherein, the IP packet by outside port reception/transmission carries the VLAN sign of VLAN under this outside port.
Preferably, Ethernet switching chip comprises 4 ethernet ports at least.
Preferably, this device further comprises: speed limit is provided with module, is used to be provided with outside port for unknown unicast bag and broadcast packet speed limit and forbid that unknown unicast bag inundation is to cpu port.
Preferably, processor is connected by pci bus with ethernet controller chip.
Compared with prior art, according to technique scheme of the present invention, partly substitute ethernet controller by Ethernet switching chip, can realize having the Ethernet interface system of a plurality of Ethernet interfaces, technical solution of the present invention has good autgmentability, can increase and reduce the quantity of Ethernet interface flexibly, save the system hardware cost greatly, reduce implementation complexity.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the implementation method of the Ethernet interface system of the embodiment of the invention;
Fig. 2 is the data flow diagram according to the Ethernet interface system of the embodiment of the invention;
Fig. 3 is the block diagram according to the implement device of the Ethernet interface system of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
According to embodiments of the invention, provide the implementation method of a kind of Ethernet interface system.
Fig. 1 is the flow chart according to the implementation method of the Ethernet interface system of the embodiment of the invention.The Ethernet interface system comprises: processor, ethernet controller, Ethernet switching chip, and wherein, this Ethernet switching chip comprises a plurality of ethernet ports, as shown in Figure 1, this method comprises:
Step S102, one of them is set to cpu port a plurality of ethernet ports of Ethernet switching chip, and all the other ports are set to outside port, and wherein, cpu port is connected with ethernet controller;
Step S104 is respectively a plurality of outside port configuration MAC Address and IP address, and each outside port receives the IP packet with target MAC (Media Access Control) address identical with its MAC Address;
Step S106, cpu port are set to a plurality of VLAN with each outside port respectively, and wherein, the IP packet by outside port reception/transmission carries the VLAN sign of VLAN under this outside port.
Through above-mentioned processing, can partly substitute ethernet controller by Ethernet switching chip, realized the Ethernet interface system with lower cost.Particularly, at receive direction, the IP packet that outside port receives enters ethernet controller by cpu port, ethernet controller is forwarded to processor with the IP packet, the VLAN sign that processor carries according to the IP packet is carried out follow-up forwarding and is handled, and before transmitting processing, divest the VLAN sign that this IP packet carries; At sending direction, processor adds the VLAN sign with IP packet to be sent, and is sent to cpu port by ethernet controller, and cpu port is forwarded to corresponding outside port with this IP packet and sends according to the VLAN sign that the IP packet carries.
Describe above-mentioned each details of handling below in detail.
According to the embodiment of the invention, the Ethernet interface system comprises: a flush bonding processor of supporting the pci bus standard, and this processor is connected with an ethernet controller chip by pci bus, and this processor does not comprise built-in quick external interface; Ethernet switching chip of this ethernet controller chip butt joint, this Ethernet switching chip has a plurality of ethernet ports, part port wherein is selected as external outside port, usually, being no less than 4 10/100M external interfaces, is that example describes with 4 external interfaces hereinafter.
Step 1, Ethernet switching chip is set.
At first, 1 cpu port and 4 outside ports of selected Ethernet switching chip, distribute 4 different MAC Address for respectively 4 outside ports, 4 outside ports and 4 MAC Address are implemented static binding respectively, and each outside port will forbid that for the IP unicast bag of purpose MAC unbundling MAC Address it enters exchange chip by the port like this.
Then, the outside port of Ethernet switching chip is divided 4 VLAN, 4 outside ports belong to 4 different VLAN, and cpu port belongs to 4 VLAN simultaneously, and each VLAN has unique VLAN sign (TAG, label).Like this, each outside port and cpu port are in together among the VLAN, and the IP packet that enters exchange chip from each outside port can only be forwarded to cpu port, can not be forwarded to other outside port.
Isolate by VLAN, guaranteeing does not have data path between inner each outside port of Ethernet switching chip, have only between outside port and the cpu port and can carry out data forwarding conditionally, thereby guaranteed the independent transceive data of Ethernet switching chip outside port.
Like this, the IP packet that enters exchange chip from each outside port can only be forwarded to cpu port, can not be forwarded to other outside port.
In addition, in order to reduce unnecessary network interferences, unknown unicast bag and broadcast packet speed limit can also be set to the outside port of exchange chip, and forbid that the unknown unicast bag is flooded to the cpu port of exchange chip.
Step 2, ethernet controller chip is set.
The initialization ethernet controller chip makes ethernet controller chip can receive the unicast packet of all purpose MAC.
Step 3, processor is loaded the ICP/IP protocol stack.
Step 4, be outside port distributing independent IP address.Each IP address is unique corresponding with an outside port of exchange chip, and the Ethernet interface that externally provides all need be provided with independent IP address, for example: need 4 independent IP address be set for 4 outside ports.
Step 5, Ethernet interface system begin circulation reception/transmission IP packet, reception between the cpu port of ethernet controller and Ethernet switching chip/transmission IP packet is divested VLANTAG or adds the operation of VLAN TAG, specifically can comprise following two aspect contents:
At receive direction, after the IP packet enters into ethernet controller chip from the cpu port of Ethernet switching chip, the VLAN TAG that carries according to the IP packet can judge this IP packet and which outside port to enter system from, clearly be the packet receiving of which Ethernet interface, hand to correct upper layer module after then the VLAN TAG of IP packet being divested and go to carry out data processing;
At sending direction, judge which Ethernet interface each IP packet to be sent belongs to, clearly which outside port this IP packet will be sent by, and in this IP packet, insert the VLAN TAG of corresponding outside port, software emulation module command ethernet controller sends to this IP packet the cpu port of exchange chip then, exchange chip will be forwarded to correct outside port to the IP packet according to the VLAN TAG information that this IP packet carries, at last, send the IP packet by outside port.
Can further understand above-mentioned processing with reference to figure 2.Fig. 2 is the data flow diagram according to the embodiment of the invention.As shown in Figure 2, the data transmit-receive of each network interface is separate, and the data channel of each network interface is isolated mutually.At the network interface receive direction, the VLANTAG mark that the IP data band that enters from outside port separately enters into ethernet controller by cpu port, handles accordingly behind the VLAN TAG mark of processor identification IP packet; At the network interface sending direction, the packet that sends from ethernet controller has carried the VLAN TAG mark of each outside port, is distributed to correct outside port according to the TAG mark after entering cpu port, is sent veritably via outside port.
Device embodiment
According to embodiments of the invention, the implement device of a kind of Ethernet interface system also is provided, this Ethernet interface system comprises: processor, ethernet controller, Ethernet switching chip.
Wherein, processor can be a flush bonding processor of supporting the pci bus standard.For example: the MPC82xx series high-performance embedded type CPU chip of Freescale company, can select the MPC8241 processor, this processor supports the pci bus standard not contain built-in external fast interface again simultaneously, compares with isonomic other CPU to have more cost advantage.Processor is connected by pci bus with ethernet controller chip,
Ethernet controller can be the fast Ethernet controller of a band pci interface.Utilize the pci interface of fast Ethernet controller to be articulated to the built-in pci bus of above-mentioned flush bonding processor, flush bonding processor can be managed for configuration with data transmit-receive ethernet controller easily and handle.Can select the RTL8139 chip of REALTEK company, this chip is the single-chip fast Ethernet controller of the high integrated high-performance and low-cost of a built-in PHY transceiver, supports pci interface.
Ethernet switching chip need possess the basic function of VLAN division and port address binding.With an above-mentioned ethernet controller chip (this port is referred to as cpu port) of port butt joint of exchange chip, remaining port can partly or entirely be used to realize external network interface (such port is referred to as outside port).Can select the BCM5325E of BROADCOM company, this is a low side Ethernet switching chip, and the Ethernet transmitting-receiving port of 5 10/100MB is provided, our choosing wherein 1 make cpu port, all make outside port for remaining 4.BCM5325E provides a SMP port, and the SPI agreement of compatible MOTOROLA can be used as above-mentioned flush bonding processor manages configuration to BCM5325E interface.The ethernet port of BCM5325E also possesses port speed constraint, forbids functions such as inundation.
Fig. 3 is the block diagram according to the implement device of the Ethernet interface system of the embodiment of the invention.As shown in Figure 3, comprise according to the implement device of the embodiment of the invention: port is provided with module 10, address configuration module 20, and VLAN is provided with module 30.Implement device according to the embodiment of the invention can be arranged in the processor.
Port is provided with module 10, be used for Ethernet switching chip a plurality of ethernet ports one of them be set to cpu port, all the other ports are set to outside port, wherein, cpu port is connected with ethernet controller; Address configuration module 20 is used to be respectively a plurality of outside port configuration MAC Address and IP address, and each outside port receives the IP packet with target MAC (Media Access Control) address identical with its MAC Address; VLAN is provided with module 30, is used for cpu port and is set to a plurality of VLAN with each outside port respectively, and wherein, the IP packet by outside port reception/transmission carries the VLAN sign of VLAN under this outside port.
To sum up, the technique scheme according to the present invention, partly substitute ethernet controller by Ethernet switching chip, can realize having the Ethernet interface system of a plurality of Ethernet interfaces, technical solution of the present invention has good autgmentability, can increase and reduce the quantity of Ethernet interface flexibly, save the system hardware cost greatly, reduce implementation complexity.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. the implementation method of an Ethernet interface system, described Ethernet interface system comprises: processor, ethernet controller, Ethernet switching chip, and wherein, this Ethernet switching chip comprises a plurality of ethernet ports, it is characterized in that described implementation method comprises:
One of them is set to cpu port a plurality of ethernet ports of described Ethernet switching chip, and all the other ports are set to outside port, and wherein, described cpu port is connected with described ethernet controller;
Be respectively described a plurality of outside port configuration MAC Address and IP address, each described outside port receives the IP packet with target MAC (Media Access Control) address identical with its MAC Address;
Described cpu port is set to a plurality of virtual LAN VLAN with each described outside port respectively, and wherein, the IP packet by described outside port reception/transmission carries the VLAN sign of VLAN under this outside port.
2. implementation method according to claim 1 is characterized in that, the IP packet by described outside port reception/transmission carries the VLAN sign of VLAN under this outside port, further comprises:
The IP packet that described outside port receives enters described ethernet controller by described cpu port;
The VLAN sign that described processor carries according to described IP packet is carried out follow-up forwarding processing, and before transmitting processing, divests the VLAN sign that this IP packet carries.
3. implementation method according to claim 1 is characterized in that, the IP packet by described outside port reception/transmission carries the VLAN sign of VLAN under this outside port, further comprises:
Described processor adds the VLAN sign with IP packet to be sent, and is sent to described cpu port by described ethernet controller;
Described cpu port is forwarded to corresponding outside port with this IP packet and sends according to the VLAN sign that described IP packet carries.
4. implementation method according to claim 1 is characterized in that, described Ethernet switching chip comprises 4 ethernet ports at least.
5. implementation method according to claim 1 is characterized in that, further comprises:
Described outside port is set for unknown unicast bag and broadcast packet speed limit and forbid that unknown unicast bag inundation is to described cpu port.
6. implementation method according to claim 1 is characterized in that, described processor is connected by pci bus with described ethernet controller chip.
7. the implement device of an Ethernet interface system, described Ethernet interface system comprises: processor, ethernet controller, Ethernet switching chip, and wherein, this Ethernet switching chip comprises a plurality of ethernet ports, it is characterized in that described implement device comprises:
Port is provided with module, be used for described Ethernet switching chip a plurality of ethernet ports one of them be set to cpu port, all the other ports are set to outside port, wherein, described cpu port is connected with described ethernet controller;
The address configuration module is used to be respectively described a plurality of outside port configuration MAC Address and IP address, and each described outside port receives the IP packet with target MAC (Media Access Control) address identical with its MAC Address;
VLAN is provided with module, is used for described cpu port and is set to a plurality of virtual LAN VLAN with each described outside port respectively, and wherein, the IP packet by described outside port reception/transmission carries the VLAN sign of VLAN under this outside port.
8. implement device according to claim 7 is characterized in that, described Ethernet switching chip comprises 4 ethernet ports at least.
9. implement device according to claim 7 is characterized in that, further comprises:
Speed limit is provided with module, is used to be provided with described outside port for unknown unicast bag and broadcast packet speed limit and forbid that unknown unicast bag inundation is to described cpu port.
10. implement device according to claim 7 is characterized in that, described processor is connected by pci bus with described ethernet controller chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910247070A CN101741664A (en) | 2009-12-21 | 2009-12-21 | Method and device for realizing Ethernet interface system |
| PCT/CN2010/073525 WO2010148923A1 (en) | 2009-12-21 | 2010-06-03 | Method and device for implementing ethernet interface system |
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| CN200910247070A CN101741664A (en) | 2009-12-21 | 2009-12-21 | Method and device for realizing Ethernet interface system |
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| WO (1) | WO2010148923A1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102055625A (en) * | 2010-12-31 | 2011-05-11 | 深圳市普联技术有限公司 | Network drive testing method |
| CN102387047A (en) * | 2011-10-21 | 2012-03-21 | 中兴通讯股份有限公司 | Monitoring system of transmission equipment, corresponding configuration method and data transmission method |
| WO2012143943A2 (en) * | 2011-04-18 | 2012-10-26 | Ineda Systems Pvt. Ltd | Multi-host ethernet controller |
| CN103795604A (en) * | 2014-01-14 | 2014-05-14 | 普联技术有限公司 | Device and method for achieving Ethernet topology automatic switchover |
| CN104104518A (en) * | 2013-04-12 | 2014-10-15 | 南京南瑞继保电气有限公司 | Virtual method of multiple Ethernet controllers in embedded system |
| CN105610666A (en) * | 2015-12-18 | 2016-05-25 | 曙光信息产业(北京)有限公司 | Interface extension method and device based on linux operating system |
| CN107222335A (en) * | 2017-05-25 | 2017-09-29 | 深圳震有科技股份有限公司 | Realize the method and system of the different VLAN of configuration many IP common ports |
| CN109246006A (en) * | 2018-08-15 | 2019-01-18 | 曙光信息产业(北京)有限公司 | A kind of exchange system and its routing algorithm constructed by exchange chip |
| CN110855685A (en) * | 2019-11-18 | 2020-02-28 | 苏州盛科科技有限公司 | Method and device for realizing CoPP (co-polypropylene) by multiple Slice exchange chips |
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| CN100512322C (en) * | 2004-01-15 | 2009-07-08 | 中兴通讯股份有限公司 | A system and method for providing multiple network interfaces with MAC address on processor |
| CN101115006B (en) * | 2007-08-21 | 2010-08-25 | 杭州华三通信技术有限公司 | Three-layer packet forwarding method and routing device and two-layer switch module |
| CN101222780B (en) * | 2008-01-24 | 2012-01-11 | 中兴通讯股份有限公司 | Method for binding virtual LAN and user on Ethernet exchanging chip |
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| CN102055625A (en) * | 2010-12-31 | 2011-05-11 | 深圳市普联技术有限公司 | Network drive testing method |
| US9590920B2 (en) | 2011-04-18 | 2017-03-07 | Ineda Systems, Inc. | Multi-host Ethernet controller |
| WO2012143943A2 (en) * | 2011-04-18 | 2012-10-26 | Ineda Systems Pvt. Ltd | Multi-host ethernet controller |
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| WO2010148923A1 (en) | 2010-12-29 |
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Application publication date: 20100616 |