CN102624617A - Data exchange system and data exchange method - Google Patents
Data exchange system and data exchange method Download PDFInfo
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- CN102624617A CN102624617A CN2012100563816A CN201210056381A CN102624617A CN 102624617 A CN102624617 A CN 102624617A CN 2012100563816 A CN2012100563816 A CN 2012100563816A CN 201210056381 A CN201210056381 A CN 201210056381A CN 102624617 A CN102624617 A CN 102624617A
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Abstract
The invention provides a data exchange system and a data exchange method. The system comprises a server, an access switch and a core switch, wherein at least one physical layer processing chip arranged in the access switch and at least one message exchange chip arranged in the core switch are directly connected through at least one data link layer processing chip, the physical layer processing chip is connected with the server, the physical layer processing chip is used for transforming formats of messages sent by the server on the basis of a physical layer-data link layer conversion protocol, the data link layer processing chip is used for performing corresponding process for the received messages according to message processing strategies, and the message exchange chip is used for exchanging the received messages. According to the data exchange system and the data exchange method, the optimization for message exchange processing procedures by a data center is achieved, the delay of message forwarding is reduced, and the communication capacity of the data center is improved.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of data exchange system and method.
Background technology
Data center is used to hold department of computer science's relevant assembly of unifying, and like communication and storage system, is the important foundation facility of IT application in enterprises.Data center's operation mainly comprises based on the communication network of IP agreement: access switch, be used to insert different servers, and such as application server, database server, Web server etc.; Convergence switch, be used for between a plurality of access switch and more than be linked to core switch; Core switch is used to provide exchange at a high speed key circuit.
Carry out the flattening of data center network framework in recent years, the convergence switch in the middle of having removed, thus the switching system of whole data center is formed two-tier system by access switch and core switch.Based on existing switching system; Though access switch and core switch all have user side interface; But in order to satisfy the high speed exchange of bandwidth demand and message simultaneously; Need message through the transmission of the user side interface reception server in the access switch; And the physical layer Phy chip interface of the physical layer Phy chip interface of access switch and core switch is interconnected, thereby make message can realize that high speed exchanges through the Fabric chip of core switch through after repeatedly the handling of the physical layer Phy chip in access switch and the core switch and data link layer Switch chip.
But; Pass through the interconnected switching system of physical layer Phy chip interface based on access switch and core switch; Make that message need pass through the processing of multiple physical layer and data link layer in the process that realizes message switching; Increase the delay that message is transmitted greatly, reduced the communication capacity of data center.
Summary of the invention
To the above-mentioned defective of prior art, the embodiment of the invention provides a kind of data exchange system and method.
The embodiment of the invention provides a kind of data exchange system on the one hand, comprising:
Server, access switch and core switch; Wherein, Said access switch comprises that at least one physical layer process chip, said core switch comprise at least one message switching chip; Wherein, directly be connected through at least one data link layer process chip between at least one said physical layer process chip and at least one said message switching chip, said physical layer process chip is connected with said server;
Said physical layer process chip, the form of the message that is used for according to physical layer-data link layer translation-protocol said server being sent carries out the conversion from the source protocol to the target protocol;
Said data link layer deals chip is used for according to the message processing policy message that receives being carried out corresponding processing;
Said message switching chip is used for the message that receives is exchanged.
The embodiment of the invention provides a kind of method for interchanging data on the other hand, comprising:
Said physical layer process chip carries out the conversion process from the PHY to the data link layer protocol according to the form of the message that physical layer-data link layer translation-protocol sends server; And send to said data link layer deals chip; After according to the message processing policy message that receives being carried out corresponding processing for said data link layer deals chip, directly the message that receives is exchanged through said message switching chip;
Perhaps; Said data link layer deals chip carries out sending to said physical layer process chip after the corresponding processing to the message that said message switching chip sends according to the message processing policy; The form of the message that said data link layer deals chip is sent according to physical layer-data link layer translation-protocol for said physical layer process chip carries out the conversion process from the data link layer protocol to the PHY, and sends to said server.
Data exchange system provided by the invention and method; Through the physical layer process chip in the access switch is linked to each other with server; And directly be connected between at least one physical layer process chip that will be in access switch and at least one the message switching chip in core switch through at least one data link layer process chip; After making that the form of the message that the physical layer process chip of access switch sends server carries out the conversion process from the PHY to the data link layer protocol, message is carried out directly exchanging through the message switching chip after the corresponding processing according to the message processing policy through the data link layer deals chip again.
And pass through the interconnected switching system of physical layer process chip interface based on access switch and core switch in the prior art; Make server after access switch sends message; Send to after the processing through physical layer process chip (Phy chip)-data link layer deals chip (Switch the chip)-physical layer process chip in the access switch earlier in the core switch after the physical layer process chip-the data link layer deals chip is handled; Could realize that message exchanges at a high speed through the message switching chip (Fabric chip) of core switch; Therefore; Compared with prior art; The message switching procedure that the data exchange system that provides based on the embodiment of the invention is carried out only carries out passing through after the single treatment single treatment of data link layer deals chip again through the physical layer process chip in the access switch, directly exchange through the message switching chip, thereby realized the optimization of data center to the message switching handling process; Reduce the delay that message is transmitted, improved the communication capacity of data center.
Description of drawings
Fig. 1 is the structural representation of an embodiment of data exchange system of the present invention;
The flow chart that the message forward is handled in the method for interchanging data that Fig. 2 carries out for application data exchange system shown in Figure 1;
The flow chart of message reverse process in the method for interchanging data that Fig. 3 carries out for application data exchange system shown in Figure 1;
Fig. 4 is a data exchange system of the prior art;
Fig. 5 is the structural representation of another embodiment of data exchange system of the present invention;
The flow chart that the message forward is handled in the method for interchanging data that Fig. 6 carries out for application data exchange system shown in Figure 5;
The flow chart of message reverse process in the method for interchanging data that Fig. 7 carries out for application data exchange system shown in Figure 5;
Fig. 8 is the data exchange system that the data link layer deals chip is placed access switch provided by the invention;
Fig. 9 is the data exchange system that the data link layer deals chip is placed core switch provided by the invention;
Figure 10 is the structural representation of data exchange system under the low capacity application scenarios shown in Figure 9;
Figure 11 is the structural representation of data exchange system under big capacity applications scene shown in Figure 8.
Embodiment
Fig. 1 is the structural representation of an embodiment of data exchange system of the present invention, and as shown in Figure 1, this system comprises:
Server 1, access switch 2 and core switch 3; Access switch 2 comprises that at least one physical layer process chip 21, core switch 3 comprise at least one message switching chip 31; Wherein, Directly be connected through at least one data link layer process chip 41 between at least one physical layer process chip 21 and at least one message switching chip 31, the physical layer process chip 21 in the access switch 2 is connected with server 1.Wherein, the form of physical layer process chip 21 message that is used for according to physical layer-data link layer translation-protocol server 1 being sent carries out the conversion from the source protocol to the target protocol; Data link layer deals chip 41 is used for according to the message processing policy message that receives being carried out corresponding processing; Message switching chip 31 is used for the message that receives is exchanged.
The method for interchanging data that carries out to data exchange system shown in Figure 1 comprises forward processing procedure and the inverse process from the message switching chip to server from server to the message switching chip to message, and Fig. 2 and Fig. 3 are described in detail the forward processing procedure and the inverse process of message respectively;
The flow chart that the message forward is handled in the method for interchanging data that Fig. 2 carries out for application data exchange system shown in Figure 1 specifically comprises:
The physical layer process chip carries out the conversion process from the PHY to the data link layer protocol according to the form of the message that physical layer-data link layer translation-protocol sends server, and sends to the data link layer deals chip.
The data link layer deals chip carries out corresponding processing according to the message processing policy to the message that receives; Need to prove; What one of ordinary skill in the art will appreciate that is different to the concrete processing procedure of message according to concrete application demand in data link layer, such as the buffer memory of message, classification etc., for packet-based message switching; Also need message be divided into grouping one by one, and switching matrix be sent in grouping transmitted.After the data link layer deals chip was finished dealing with, the message after directly will handling was sent to the message switching chip in the core switch, thereby the message switching chip exchanges the message that receives.
The flow chart of message reverse process in the method for interchanging data that Fig. 3 carries out for application data exchange system shown in Figure 1 specifically comprises:
The message that all the other network element devices that the message switching chip will receive send sends in the data link layer deals chip; Thereby the data link layer deals chip carries out corresponding processing according to the message processing policy to the message that the message switching chip sends; Such as the buffer memory of message, classification etc.; For packet-based message switching, need be reassembled into message to the grouping that receives, after finishing dealing with, the data link layer deals chip sends to the physical layer process chip in the access switch.
The physical layer process chip carries out the conversion process from the data link layer protocol to the PHY according to the form of the message that physical layer-data link layer translation-protocol sends data link layer process chip, and sends to server.
Fig. 4 is a data exchange system of the prior art; As shown in Figure 4; Data exchange system of the prior art is in order to satisfy the high speed exchange of bandwidth demand and message simultaneously; Thereby it is physical chip (Phy chip) interface of physical chip (Phy chip) interface of access switch and core switch is interconnected through CoaXPress (CXP) interface; Wherein, the CXP interface is a kind of point-to-point standard for serial communication of asymmetrical high speed for video transmission and image transmission foundation, can expand single or a plurality of coaxial cables.It has a high-speed downstream can reach every 6.25gbps video, image, data channel, communicates by letter with a up 20mbps, control channel.Hence one can see that; The message that server sends to access switch; Earlier through arriving core switch through the CXP interface after the processing of physical layer process chip (Phy chip)-data link layer deals chip (Switch the chip)-physical layer process chip (Phy chip) in the access switch; Pass through again in the core switch after physical layer process chip (Phy chip)-data link layer deals chip (Switch chip) is handled, could realize that message exchange at a high speed through the message switching chip in the core switch (Fabric chip).Need be in realizing the process that message exchanges at a high speed thereby make to the processing of message through multiple physical layer and data link layer, the time that has increased message switching greatly.
In sum; Compare with existing data exchange system shown in Figure 4; The data exchange system that present embodiment provides; Through with directly being connected between at least one the message switching chip at least one the physical layer process chip in the access switch and the core switch through at least one data link layer process chip, make the message that server sends to access switch, only carry out passing through again after the single treatment single treatment of data link layer deals chip through the physical layer process chip in the access switch; Directly carry out the high speed exchange through the message switching chip in the core switch; Thereby realized the optimization of data center, reduced the delay that message is transmitted, improved the communication capacity of data center the message switching handling process.
Fig. 5 is the structural representation of another embodiment of data exchange system of the present invention; As shown in Figure 5; Based on embodiment illustrated in fig. 1, core switch 3 also comprises: N level message switching chipset, wherein; N level message switching chipset comprises at least two N level message switching chips; Wherein, at least one message switching chip is connected with first order message switching chip in the N level message switching chipset through backplane interface, is connected through backplane interface between the message switching chips at different levels in the N level message switching chipset.Wherein, message switching chip 31 also is used for the message that receives is transmitted to the first order message switching chip of N level message switching chipset; Preceding N-1 level message switching chip in the N level message switching chipset is used for the message that receives is transmitted, and N level message switching chip is used for the message that receives is exchanged.Need to prove; The concrete number of N can be provided with according to the application need of system; Present embodiment does not limit this, and embodiment illustrated in fig. 5 is to be that example specifies with N=1, promptly comprises two first order message switching chips 32 at least; Wherein, message switching chip 31 also is used for the message that receives is transmitted to first order message switching chip 32; First order message switching chip 32 is used for the message that receives is exchanged.
The method for interchanging data that carries out to data exchange system shown in Figure 5 comprises forward processing procedure from server to first order message switching chip and the inverse process from first order message switching chip to server to message, and Fig. 6 and Fig. 7 are described in detail the forward processing procedure and the inverse process of message respectively;
The flow chart that the message forward is handled in the method for interchanging data that Fig. 6 carries out for application data exchange system shown in Figure 5 specifically comprises:
Step 300, the physical layer process chip carries out conversion process to the form of the message that server sends, and sends to the data link layer deals chip;
The physical layer process chip carries out the conversion process from the PHY to the data link layer protocol according to the form of the message that physical layer-data link layer translation-protocol sends server, and sends to the data link layer deals chip.
The data link layer deals chip carries out corresponding processing according to the message processing policy to the message that receives; Such as the buffer memory of message, classification etc.; For packet-based message switching, also need message be divided into grouping one by one, and switching matrix be sent in grouping transmitted.After the data link layer deals chip was finished dealing with, the message after directly will handling was sent to the message switching chip in the core switch.
Step 302, the message switching chip sends the message that the data link layer deals chip sends to first order message switching chip, to carry out the high speed exchange of message through first order message switching chip.
The message switching chip is transmitted the message that received data link layer deals chip sends through backplane interface to first order message switching chip; Because a message switching chip can E-Packet at least two first order message switching chips, thereby can realize that through the more first order message switching chip high speed of more messages exchanges.Therefore; Compare with embodiment illustrated in fig. 4, the message switching chip in the present embodiment is used to E-Packet, and first order message switching chip is realized the high speed exchange of message; Be different from the high speed exchange that directly realizes message in embodiment illustrated in fig. 4, improve the processing capacity of system by the message switching chip.
The flow chart of message reverse process in the method for interchanging data that Fig. 7 carries out for application data exchange system shown in Figure 5 specifically comprises:
The message that step 400, first order message switching chip receive all the other network element devices transmissions sends to the message switching chip, to be transmitted to the data link layer deals chip through the message switching chip;
Because a message switching chip connects at least two first order message switching chips; Thereby can receive the message that more all the other network element devices send through first order message switching chip, first order message switching chip is transmitted to the data link layer deals chip with the message that receives through the message switching chip.
After the data link layer deals chip receives the message of message switching chip transmission; According to the message processing policy message is carried out corresponding processing; Such as the buffer memory of message, classification etc.; For packet-based message switching, need be reassembled into message to the grouping that receives, after finishing dealing with, the data link layer deals chip sends to the physical layer process chip in the access switch.
The physical layer process chip carries out the conversion process from the data link layer protocol to the PHY according to the form of the message that physical layer-data link layer translation-protocol sends data link layer process chip, and sends to server.
The data exchange system that present embodiment provides; Through with directly being connected between at least one the message switching chip at least one the physical layer process chip in the access switch and the core switch through at least one data link layer process chip; And at least one message switching chip is connected with two first order message switching chips in the core switch at least; Make the message that server sends to access switch; Only carry out passing through again after the single treatment single treatment of data link layer deals chip through the physical layer process chip in the access switch; Directly be transmitted to first order message switching chip, and more message carried out the high speed exchange, thereby realized the optimization of data center the message switching handling process through first order message switching chip through the message switching chip in the core switch; When having reduced the delay of message forwarding; Also increased power system capacity, and can improve the communication capacity of data center further according to the capacity Adjustment System configuration flexibly of system.
To Fig. 1; Data link layer deals chip among the data exchange system embodiment shown in Figure 5 shown in the dotted portion; Can the data link layer deals chip be placed access switch or place core switch according to the application need of reality; Different according to application need, the connection between each chip can be used different interfaces, illustrates as follows:
Mode one: data link layer deals chip 41 is placed access switch 2, make access switch 2 comprise a data link layer process chip 41 at least;
Particularly; At least one physical layer process chip 21 in the access switch 2 is connected with server 1 through the SFP+ interface, and physical layer process chip 21 is connected with at least one data link layer deals chip 41 in the access switch 2 through XAUI interface and/or RXAUI interface; Data link layer deals chip 41 is connected with at least one message switching chip 31 in the core switch 3 through CXP interface or high-speed interface.
Mode two: data link layer deals chip 41 is placed core switch 3, make core switch 3 comprise a data link layer process chip 41 at least;
Particularly; At least one physical layer process chip 21 in the access switch 2 is connected with server 1 through the SFP+ interface, and physical layer process chip 21 is connected with at least one data link layer deals chip 41 in the core switch 3 through XAUI interface and/or RXAUI interface; Data link layer deals chip 41 is connected with at least one message switching chip 31 in the core switch 3 through backplane interface or CXP interface or high-speed interface.
In sum, the method for interchanging data that the data exchange system of using the embodiment of the invention and providing for clearer explanation is carried out is that example is described in detail through Fig. 8 and concrete application scenarios shown in Figure 9 below.
Fig. 8 is the data exchange system that the data link layer deals chip is placed access switch provided by the invention; It is specific as follows to use the message switching processing procedure that data exchange system shown in Figure 8 carries out: particularly; The user side interface of the access switch in the data exchange system shown in Figure 8 is that the SFP+ interface is used for the Connection Service device, the message that a plurality of 10G Phy chips (being equivalent to the physical layer process chip in the foregoing description) in the access switch send through SFP+ interface reception server.Access switch comprises a plurality of Swtich chips (being equivalent to the data link layer deals chip in the foregoing description); The Swtich chip receives the message that 10G Phy chip sends through XAUI and/or RXAUI interface; Be used for realizing processing, such as the buffer memory of message, classification, processing etc. to message.Every Swtich chip has 8 CXP interfaces, it should be noted that CXP interface and SFP+ interface not at same, can be placed on the back side of access switch, convenient wiring.Handling behind the message every Swtich chip has 32 road differential signal Serdes and with on this 32 road differential signal mean allocation to 8 CXP interface, makes on each CXP interface to have 4 road Serdes.On the Fabric chip (being equivalent to the message switching chip in the foregoing description) during every Swtich chip exchanges to core through CXP interface cochain.
Each Fabric chip in the core switch has 10 CXP interfaces; Each Fabric chip has 128 road Serdes (such as the BCM88750 of Broadcom company); Wherein 64 the tunnel are used for the front panel interface, and 64 the tunnel are used for backboard connects, because 64 can not be divided exactly by 10; Therefore only used wherein 60 the tunnel; Thereby every Fabric chip has 6 tunnel Serdes to each CXP interface, can adopt N level Fabric chipset (in the present embodiment be that example describe with N=2, be equivalent to the first order message switching chip in the N level message switching chipset in the foregoing description) at the power board of cabinet aft section; The Fabric chip is connected with first order Fabric chip through back panel connector; Every first order Fabric chip has 128 road Serdes and 8 back panel connectors, and this 128 road Serdes mean allocation is to these 8 back panel connectors, and each back panel connector is 16 road Serdes.
In sum; The data exchange system that provides through present embodiment; After the message that server sends passes through the 10G Phy chip and the processing of Swtich chip to message in the access switch; Directly send to the Fabric chip in the core switch, and arrive first order Fabric chip, realize high speed exchange message through Fabric chip and first order Fabric chip through back panel connector through the CXP interface.Thereby realized the optimization of data center, when having reduced the delay of message forwarding, also increased power system capacity, improved the communication capacity of data center to greatest extent the message switching handling process.
Fig. 9 is the data exchange system that the data link layer deals chip is placed core switch provided by the invention; It is specific as follows to use the message switching processing procedure that data exchange system shown in Figure 9 carries out: particularly; The user side interface of the access switch in the data exchange system shown in Figure 9 is that the SFP+ interface is used for the Connection Service device, the message that a plurality of 10G Phy chips (being equivalent to the physical layer process chip in the foregoing description) in the access switch send through SFP+ interface reception server.Core switch comprises a plurality of Swtich chips (being equivalent to the data link layer deals chip in the foregoing description); The Swtich chip receives the message that 10G Phy chip sends through XAUI and/or RXAUI interface; Be used for realizing processing, such as the buffer memory of message, classification, processing etc. to message.Every Swtich chip has 8 CXP interfaces, it should be noted that CXP interface and SFP+ interface not at same, can be placed on the back side of access switch, convenient wiring.Handling behind the message every Swtich chip has 32 road differential signal Serdes and with on this 32 road differential signal mean allocation to 8 CXP interface, makes on each CXP interface to have 4 road Serdes.On the Fabric chip (being equivalent to the message switching chip in the foregoing description) during every Swtich chip exchanges to core through CXP interface cochain.
Each Fabric chip in the core switch has 10 CXP interfaces; Each Fabric chip has 128 road Serdes (such as the BCM88750 of Broadcom company); Wherein 64 the tunnel are used for the front panel interface, and 64 the tunnel are used for backboard connects, because 64 can not be divided exactly by 10; Therefore only used wherein 60 the tunnel, thereby every Fabric chip has 6 tunnel Serdes to each CXP interface.Can adopt N level Fabric chipset at the power board of cabinet aft section (is that example describes with N=2 in the present embodiment; Be equivalent to the first order message switching chip in the N level message switching chipset in the foregoing description); The Fabric chip is connected with first order Fabric chip through back panel connector; Every first order Fabric chip has 128 road Serdes and 8 back panel connectors; This 128 road Serdes mean allocation is to these 8 back panel connectors, and each back panel connector is 16 road Serdes.
In sum; The data exchange system that provides through present embodiment; The message that server sends directly sends to the Swtich chip in the core switch through XAUI and/or RXAUI interface after passing through the processing of 10G Phy chip to message in the access switch, and the Swtich chip is connected to the Fabric chip of core switch through the CXP interface; The Fabric chip connects first order Fabric chip through back panel connector, thereby realizes the high speed exchange to message through first order Fabric chip.Thereby realized the optimization of data center, when having reduced the delay of message forwarding, also increased power system capacity, improved the communication capacity of data center to greatest extent the message switching handling process.
To Fig. 8 and embodiment shown in Figure 9; It should be noted that; To different power system capacities, the switching system of being made up of access switch and core switch can carry out system configuration and corresponding connected mode according to concrete application need, illustrates as follows:
Figure 10 is the structural representation of data exchange system under the low capacity application scenarios shown in Figure 9; Shown in figure 10; For the capacity less system that compares, can adopt following connected mode: every line in the core switch is represented a cable that connects the CXP interface, inserts data link layer deals chip and message switching chip on the core switch; Because power system capacity is less; So do not insert N level message switching chipset, all message switching chip configuration are become directly exchange at a high speed, obstructed level is later transmitted.The CXP interface that connects on 8 is arranged on each data link layer deals chip, be connected respectively on the CXP interface of 8 message switching chips, the message that will pass through after the data link layer deals chip is handled directly carries out the high speed exchange through the message switching chip.
Figure 11 is the structural representation of data exchange system under big capacity applications scene shown in Figure 8; Shown in figure 11, for the relatively big system of capacity, can adopt following connected mode: stick with all message switching chips on the core switch; Because the power system capacity of handling is bigger; So insert N level message switching chipset, such as the situation of N=1, promptly N level message switching chipset comprises first order message switching chip; All message switching chip configuration are become to transmit through first order message switching chip, and whole system is maximum supports that 80 access switch is interconnected.The CXP interface that connects on 8 is arranged on each data link layer deals chip; Be connected respectively on the CXP interface of 8 core switch; Because the panel of each core switch is supported 10*8=80 CXP interface at most; So whole system can be supported 80 access switch at most, if every access switch has 48 SFP+ interfaces, whole system can be supported the surface speed forwarding of 48*80=3840 SFP+ interface so.
Further, if the capacity of system between Figure 10 and the power system capacity of mentioning embodiment illustrated in fig. 11, can reduce the quantity of core switch so; Perhaps, if the capacity of system is bigger, through the quantity of N in the N level message switching chipset in the increase core switch; The capacity that whole system can be supported can also be bigger; Thereby Figure 10, the embodiment of Figure 11 can satisfy its different application need according to the capacity Adjustment System configuration flexibly of system.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. a data exchange system is characterized in that, comprising:
Server, access switch and core switch; Wherein, Said access switch comprises that at least one physical layer process chip, said core switch comprise at least one message switching chip; Wherein, directly be connected through at least one data link layer process chip between at least one said physical layer process chip and at least one said message switching chip, said physical layer process chip is connected with said server;
Said physical layer process chip, the form of the message that is used for according to physical layer-data link layer translation-protocol said server being sent carries out the conversion from the source protocol to the target protocol;
Said data link layer deals chip is used for according to the message processing policy message that receives being carried out corresponding processing;
Said message switching chip is used for the message that receives is exchanged.
2. data exchange system according to claim 1 is characterized in that, said data link layer deals chip is arranged in said access switch;
Directly be connected between said at least one said physical layer process chip and at least one said message switching chip and comprise through at least one data link layer process chip:
At least one said physical layer process chip is connected with at least one data link layer deals chip through XAUI interface and/or RXAUI interface;
At least one said data link layer deals chip is connected with at least one said message switching chip through CXP interface or high-speed interface.
3. data exchange system according to claim 1 is characterized in that, said data link layer deals chip is arranged in said core switch;
Directly be connected between said at least one said physical layer process chip and at least one said message switching chip and comprise through at least one data link layer process chip:
At least one said physical layer process chip is connected with at least one said data link layer deals chip through XAUI interface and/or RXAUI interface;
At least one said data link layer deals chip is connected through the said message switching chip of backplane interface and at least one.
4. data exchange system according to claim 1 is characterized in that, said physical layer process chip is connected with said server and comprises:
Said physical layer process chip is connected with said server through the SFP+ interface.
5. according to each described data exchange system of claim 1-4; It is characterized in that; Said core switch also comprises: N level message switching chipset; Wherein, said N level message switching chipset comprises at least two N level message switching chips, wherein; At least one said message switching chip is connected with first order message switching chip in the said N level message switching chipset through backplane interface, is connected through said backplane interface between the message switching chips at different levels in the said N level message switching chipset;
Said message switching chip also is used for the message that receives is transmitted to the first order message switching chip of said N level message switching chipset;
Preceding N-1 level message switching chip in the said N level message switching chipset is used for the message that receives is transmitted, and N level message switching chip is used for the message that receives is exchanged.
6. use the method for interchanging data that data exchange system as claimed in claim 1 is carried out for one kind, it is characterized in that, comprising:
Said physical layer process chip carries out the conversion process from the PHY to the data link layer protocol according to the form of the message that physical layer-data link layer translation-protocol sends server; And send to said data link layer deals chip; After according to the message processing policy message that receives being carried out corresponding processing for said data link layer deals chip, directly the message that receives is exchanged through said message switching chip;
Perhaps; Said data link layer deals chip carries out sending to said physical layer process chip after the corresponding processing to the message that said message switching chip sends according to the message processing policy; The form of the message that said data link layer deals chip is sent according to physical layer-data link layer translation-protocol for said physical layer process chip carries out the conversion process from the data link layer protocol to the PHY, and sends to said server.
7. method for interchanging data according to claim 6 is characterized in that, said data link layer deals chip is arranged in said access switch,
Said data link layer deals chip carries out message interaction through CXP interface or high-speed interface and said message switching chip.
8. method for interchanging data according to claim 6 is characterized in that, said data link layer deals chip is arranged in said core switch,
Said data link layer deals chip carries out message interaction through backplane interface and said message switching chip.
9. according to each described method for interchanging data of claim 6-8, it is characterized in that,
Said physical layer process chip carries out message interaction through XAUI interface and/or RXAUI interface and said data link layer deals chip.
10. according to each described method for interchanging data of claim 6-8; It is characterized in that said core switch also comprises: N level message switching chipset, wherein; Said N level message switching chipset comprises at least two N level message switching chips, and said method also comprises:
Said message switching chip sends to the first order message switching chip in the said N level message switching chipset with the message that receives through backplane interface, so that through the preceding N-1 level message switching chip in the N level message switching chipset N level message switching chip that message is transmitted in the said N level message switching chipset is carried out message switching;
Perhaps; N level message switching chip in the said N level message switching chipset sends to said message switching chip with the message that receives through backplane interface, carries out the message processing so that through said message switching chip said message is sent to said data link layer deals chip.
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| CN201210056381.6A CN102624617B (en) | 2012-03-06 | 2012-03-06 | Data exchange system and data exchange method |
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