CN102594668A - Message forwarding method, device and exchange equipment - Google Patents
Message forwarding method, device and exchange equipment Download PDFInfo
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Abstract
The invention provides a message forwarding method, a device and exchange equipment; the message forwarding method comprises the following steps that: receiving a message which a client terminal sends to a cluster server group; obtaining a multi-port index which corresponds to a target medium access control address through an address forwarding table which is inquired according to the target medium access control address of the message; and forwarding the message to at least two ports which correspond to the multi-pore index, wherein the two ports are the ports which are connected with the cluster server group. According to the invention, the message which is sent to the cluster server group by the client terminal can be forwarded to the ports which are connected with the cluster server group, the non-load balance ports in a virtual local area network (VLAN) in which the cluster server group is are not affected, so that the load balance performance can be improved.
Description
Technical field
The present invention relates to load-balancing technique, relate in particular to a kind of message forwarding method, device and switching equipment, belong to communication technical field.
Background technology
NLB (Network Load Balancing; Hereinafter to be referred as: NLB) service has strengthened the availability and the scalability of mission critical server application.Through two or more computer resources are combined as Cluster Server; The separate copy of each server operation required service application program; The client-requested that NLB will import into is distributed to the All hosts in the Cluster Server; The load of every host process can dispose where necessary, also dynamically in trooping, adds the load that main frame is handled increase.For through the program of load balance, when certain main frame breaks down or during off line, will redistribute load automatically at the intercomputer that continues operation, thereby guarantee the required Performance And Reliability of mission critical server.All hosts during NLB allows to troop is by the one group of identical Internet Protocol of trooping (Internet Protocol; Hereinafter to be referred as: IP) addressing of address keeps the existing unique private ip address of each main frame simultaneously.
Wherein, above-mentioned Cluster Server is meant two or more server centered is got up to provide with a kind of service, similarly is to have only a server in client.
Typical NLB service groups net mode can be as shown in Figure 1, and Fig. 1 is prior art NLB service networking and the inner sketch map of transmitting.Among Fig. 1, Cluster Server A and Cluster Server B are connected on the Layer 2 switch, and operation NLB service is carried out mutual, fictionalizes a NLB IP address; Layer 2 switch is received on the three-tier switch through the upper united mouth.When client needed service that access server provides, in fact visit was NLB IP address, and the access request message sends to all Cluster Servers simultaneously.Suppose that Cluster Server A in the Cluster Server group is with the request of customer in response end; In case Cluster Server A breaks down; Perhaps by electricity under the accident, Cluster Server B detects Cluster Server A and breaks down, and will take over the request of Cluster Server A customer in response end.
Existing NLB serves in the inner repeating process; The request service message of client (the purpose IP address of this request service message is NLB IP address) is routed to port p2 through three-tier switch port p1; Be forwarded on the secondary layer switch port p3 purpose medium access control (the Media Access Control of above-mentioned request service message; Hereinafter to be referred as: MAC) address is the MAC Address of Cluster Server group.Secondary layer switch port p3, p4 and p5 are at same VLAN (Virtual LocalArea Network; Hereinafter to be referred as: VLAN); Because the target MAC (Media Access Control) address of above-mentioned request service message is the MAC Address of Cluster Server group; The MAC Address of this Cluster Server group can not learnt on Layer 2 switch; Therefore above-mentioned request service message will be broadcasted in Layer 2 switch belongs to VLAN, and Cluster Server A and B receive above-mentioned request service message simultaneously, and above-mentioned request service message repeating process is shown in dash-dot arrows among Fig. 1.The Cluster Server group is according to the result of NLB service interaction; Send the MAC Address of source MAC by one of them server (being Cluster Server A among Fig. 1) for this server; Source IP address is the response message of NLB IP address; With the request of customer in response end, this response message is forwarded to layer 2-switched port p2 through layer 2-switched port p3, is routed to the port p1 of client again by p2; The repeating process of above-mentioned response message is shown in solid arrow among Fig. 1, and so far whole reciprocal process is accomplished.
In the prior art; After the request service message that client is sent gets into Layer 2 switch from layer 2-switched port p3; Because the target MAC (Media Access Control) address of this request service message can not be learned on Layer 2 switch; This moment, above-mentioned request service message can flood in VLAN so, was forwarded to port p4 and port p5 simultaneously.NLB is exactly this characteristic of utilizing switch, reaches the purpose of copy packet.Owing to be in VLAN, to flood; If also be connected to other servers that do not belong to the Cluster Server group in the same VLAN this moment so; So above-mentioned request service message not only can be forwarded to the port that connects the Cluster Server group, also can be forwarded to the unsupported balanced port in the VLAN of Cluster Server group place, for example: connect the above-mentioned port that does not belong to other servers of Cluster Server group; Will have influence on the normal communication of above-mentioned other servers, cause load-balancing performance to descend.
Summary of the invention
The present invention provides a kind of message forwarding method, device and switching equipment; To realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group; Do not influence unsupported balanced port in the VLAN of Cluster Server group place, improve load-balancing performance.
One aspect of the present invention provides a kind of message forwarding method, comprising:
Receive the message that client sends to the Cluster Server group;
Purpose Media Access Control Address inquire address according to said message is transmitted, and obtains the corresponding multiport index of said purpose Media Access Control Address;
Said message is forwarded at least two corresponding ports of said multiport index, and said at least two ports are for connecting the port of said Cluster Server group.
The present invention provides a kind of apparatus for forwarding message on the other hand, comprising:
Receiver module is used to receive the message that client sends to the Cluster Server group;
Obtain module, be used for transmitting, obtain the corresponding multiport index of said purpose Media Access Control Address according to the purpose Media Access Control Address inquire address of said message;
Forwarding module is used for said message is forwarded at least two corresponding ports of said multiport index, and said at least two ports are for connecting the port of said Cluster Server group.
Further aspect of the present invention provides a kind of switching equipment, comprises aforesaid apparatus for forwarding message.
The technique effect of one aspect of the present invention is: receive client and send to after the message of Cluster Server group; Purpose Media Access Control Address inquire address according to this message is transmitted; Obtain the corresponding multiport index of this purpose Media Access Control Address; Then above-mentioned message is forwarded at least two corresponding ports of above-mentioned multiport index, above-mentioned at least two ports are for connecting the port of above-mentioned Cluster Server group; Thereby can realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group, not influence unsupported balanced port in the VLAN of Cluster Server group place, and then can improve load-balancing performance.
The present invention's technique effect on the other hand is: receiver module receives client and sends to after the message of Cluster Server group; Obtaining module transmits according to the purpose Media Access Control Address inquire address of this message; Obtain the corresponding multiport index of this purpose Media Access Control Address; Forwarding module is forwarded at least two corresponding ports of above-mentioned multiport index with above-mentioned message then, and above-mentioned at least two ports are for connecting the port of above-mentioned Cluster Server group; Thereby can realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group, not influence unsupported balanced port in the VLAN of Cluster Server group place, and then can improve load-balancing performance.
Description of drawings
Fig. 1 is prior art NLB service networking and the inner sketch map of transmitting;
Fig. 2 is the flow chart of an embodiment of message forwarding method of the present invention;
Fig. 3 is the sketch map of an embodiment of application scenarios of the present invention;
Fig. 4 is the structural representation of an embodiment of apparatus for forwarding message of the present invention;
Fig. 5 is the structural representation of another embodiment of apparatus for forwarding message of the present invention;
Fig. 6 is the structural representation of another embodiment of apparatus for forwarding message of the present invention.
Embodiment
Fig. 2 is the flow chart of an embodiment of message forwarding method of the present invention, and as shown in Figure 2, this message forwarding method can comprise:
In the present embodiment, the message that client sends to the Cluster Server group is the message that target MAC (Media Access Control) address is the MAC Address of Cluster Server group.
In a kind of implementation of present embodiment; Target MAC (Media Access Control) address inquire address according to above-mentioned message is transmitted; Obtain the corresponding multiport index of this target MAC (Media Access Control) address can for: the target MAC (Media Access Control) address inquire address according to above-mentioned message is transmitted, and obtains this target MAC (Media Access Control) address corresponding port number; Judge that whether this port numbers is more than or equal to predetermined threshold; If confirm that then this port numbers is the corresponding multiport index of above-mentioned purpose MAC Address.
In the another kind of implementation of present embodiment; Comprise the multiport index field in the above-mentioned addresses forwarding table; The value of multiport index field is the multiport index in the corresponding list item of above-mentioned purpose MAC Address; Then transmit according to the target MAC (Media Access Control) address inquire address of above-mentioned message; Obtain the corresponding multiport index of this target MAC (Media Access Control) address can for: the target MAC (Media Access Control) address inquire address according to above-mentioned message is transmitted, and can obtain the value of multiport index field in the corresponding list item of this target MAC (Media Access Control) address, and the value of this multiport index field is the corresponding multiport index of this target MAC (Media Access Control) address.
Particularly, with above-mentioned message be forwarded at least two corresponding ports of above-mentioned multiport index can for: inquire about the corresponding pre-configured multiterminal oral thermometer of above-mentioned multiport index, obtain at least two ports preserving in the above-mentioned multiterminal oral thermometer; Above-mentioned message is forwarded to above-mentioned at least two ports.
In the foregoing description; Receiving client sends to after the message of Cluster Server group; Target MAC (Media Access Control) address inquire address according to this message is transmitted; Obtain the corresponding multiport index of this target MAC (Media Access Control) address, then above-mentioned message is forwarded at least two corresponding ports of above-mentioned multiport index, above-mentioned at least two ports are for connecting the port of above-mentioned Cluster Server group; Thereby can realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group, not influence unsupported balanced port in the VLAN of Cluster Server group place, and then can improve load-balancing performance.
The present invention's method that provides embodiment illustrated in fig. 2 can be applied in the present invention's application scenarios shown in Figure 3, and Fig. 3 is the sketch map of an embodiment of application scenarios of the present invention.
As shown in Figure 3; Through the present invention's method that provides embodiment illustrated in fig. 2 Layer 2 switch is configured; Specifying the port that connects the Cluster Server group is p4 and p5; Receive after client sends to the message of Cluster Server group at Layer 2 switch like this, Layer 2 switch only can be forwarded to port p4 and port p5 with this message, and can above-mentioned message be forwarded to threaded file host-host protocol (File TransferProtocol; Hereinafter to be referred as: the FTP) port of server.
In general; Addresses forwarding table is made up of MAC Address and single outlet, can't constitute the corresponding a plurality of outlets of a MAC Address, so; If to switch, the message that can cause the user to send to the Cluster Server group is only transmitted toward an outlet with the MAC Address static configuration of Cluster Server group.
The present invention introduces the notion of multiport index, can make the corresponding multiple exit of the corresponding MAC Address of Cluster Server group through the multiport index.
Particularly; Among the present invention; Client sends to the message of Cluster Server group through after the port p3 entering Layer 2 switch, and the addresses forwarding table that Layer 2 switch self is preserved according to the target MAC (Media Access Control) address inquiry of this message obtains the corresponding multiport index of above-mentioned purpose MAC Address.
Particularly, because in the existing addresses forwarding table, corresponding port numbers of MAC Address (below be called single port), in the existing addresses forwarding table, the length of single port is 1 byte, i.e. 8 bits; In general, the highest order of these 8 bits is " 0 ".In a kind of implementation of the present invention; Existing addresses forwarding table is expanded; The highest order of above-mentioned purpose MAC Address corresponding port number is set to " 1 " in the addresses forwarding table, and like this, above-mentioned purpose MAC Address corresponding port number is greater than the port numbers of single port.Thereby the addresses forwarding table that Layer 2 switch can self be preserved according to the inquiry of this target MAC (Media Access Control) address obtains this target MAC (Media Access Control) address corresponding port number; Judge that then whether the port numbers that obtains is greater than predetermined threshold; If it is the corresponding multiport index of above-mentioned purpose MAC Address that this port numbers, then can be confirmed the port numbers that obtains more than or equal to above-mentioned predetermined threshold; And if this port numbers can confirm then that less than above-mentioned predetermined threshold the port numbers that obtains is the port numbers of single port.Wherein, above-mentioned predetermined threshold can set up on their own when concrete the realization, and the present invention does not limit the size of above-mentioned predetermined threshold, as long as guarantee the port numbers of this predetermined threshold greater than single port, is less than or equal to the multiport index and gets final product.
In the another kind of implementation of the present invention; Also can in addresses forwarding table, increase the multiport index field; The value that client sends to multiport index field in the corresponding list item of target MAC (Media Access Control) address of message of Cluster Server group is set to the multiport index, and the value of the corresponding list item middle port of above-mentioned purpose MAC Address field is set to sky; In addition, the value of the corresponding list item middle port of unicast mac address field is set to the port numbers of the corresponding single port of above-mentioned unicast mac address in the address table, and the value of multiport index field is set to sky in the corresponding list item of unicast mac address.Like this, transmit according to the target MAC (Media Access Control) address inquire address of above-mentioned message, can obtain the value of multiport index field in the corresponding list item of this target MAC (Media Access Control) address, the value of this multiport index field is the corresponding multiport index of this target MAC (Media Access Control) address.
In conjunction with Fig. 3; Obtain after the corresponding multiport index of above-mentioned purpose MAC Address, Layer 2 switch can be inquired about the corresponding pre-configured multiterminal oral thermometer of above-mentioned multiport index, preserves the port that connects the Cluster Server group in this pre-configured multiterminal oral thermometer; Among Fig. 3; Therefore the port-for-port p4 and the port p5 that connect the Cluster Server group inquire about the multiterminal oral thermometer, can obtain the information of port p4 and port p5.Then; Layer 2 switch is forwarded to port p4 and port p5 with above-mentioned message; Because the port of ftp server is not in above-mentioned multiterminal oral thermometer; Therefore above-mentioned message can not be forwarded to the port that connects ftp server, thereby can reduce not belonging to the influence of Cluster Server group in the VLAN of Layer 2 switch place, and then can improve load-balancing performance.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each 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 above-mentioned each 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.
Fig. 4 is the structural representation of an embodiment of apparatus for forwarding message of the present invention; Apparatus for forwarding message in the present embodiment can be used as switching equipment; Or the part of switching equipment realizes the present invention's flow process embodiment illustrated in fig. 2; As shown in Figure 4, this apparatus for forwarding message can comprise: receiver module 41, acquisition module 42 and forwarding module 43;
Wherein, receiver module 41 is used to receive the message that client sends to the Cluster Server group.
Obtain module 42, be used for transmitting, obtain the corresponding multiport index of this target MAC (Media Access Control) address according to the target MAC (Media Access Control) address inquire address of above-mentioned message.
In the present embodiment, above-mentioned switching equipment can be realized the network equipment of function of exchange for router or switch etc.
In the foregoing description; Receiver module 41 receives client and sends to after the message of Cluster Server group; Obtaining module 42 transmits according to the purpose Media Access Control Address inquire address of this message; Obtain the corresponding multiport index of this purpose Media Access Control Address, forwarding module 43 is forwarded at least two corresponding ports of above-mentioned multiport index with above-mentioned message then, and above-mentioned at least two ports are for connecting the port of above-mentioned Cluster Server group; Thereby can realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group, not influence unsupported balanced port in the VLAN of Cluster Server group place, and then can improve load-balancing performance.
Fig. 5 is the structural representation of another embodiment of apparatus for forwarding message of the present invention; Compare with apparatus for forwarding message shown in Figure 4; Difference is that in the present embodiment, obtaining module 42 can comprise: the first inquiry submodule 421, judgement submodule 422 and definite submodule 423;
Wherein, the first inquiry submodule 421 is used for transmitting according to the target MAC (Media Access Control) address inquire address of above-mentioned message, obtains above-mentioned purpose MAC Address corresponding port number;
Confirm submodule 423, be used for when judging that submodule 422 is confirmed above-mentioned port numbers more than or equal to above-mentioned predetermined threshold, confirm that above-mentioned port numbers is the corresponding multiport index of target MAC (Media Access Control) address.
In the present embodiment, forwarding module 43 can comprise: inquiry submodule 431 is transmitted submodule 432 with message;
Wherein, inquiry submodule 431 is used to inquire about the corresponding pre-configured multiterminal oral thermometer of above-mentioned multiport index, obtains at least two ports preserving in the multiterminal oral thermometer;
Message is transmitted submodule 432, is used for above-mentioned message is forwarded to above-mentioned at least two ports.
Above-mentioned apparatus for forwarding message can realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group, does not influence unsupported balanced port in the VLAN of Cluster Server group place, and then can improve load-balancing performance.
Fig. 6 compares with apparatus for forwarding message shown in Figure 4 for the structural representation of another embodiment of apparatus for forwarding message of the present invention, and difference is that in the present embodiment, obtaining module 42 can comprise:
The second inquiry submodule 424; Be used for transmitting and comprising the multiport index field when the address; When the value of multiport index field is the multiport index in the corresponding list item of above-mentioned purpose MAC Address; Target MAC (Media Access Control) address inquire address according to above-mentioned message is transmitted, and obtains the value of multiport index field in the corresponding list item of this target MAC (Media Access Control) address, and the value of this multiport index field is the corresponding multiport index of target MAC (Media Access Control) address.
In the present embodiment, forwarding module 43 can comprise: inquiry submodule 431 is transmitted submodule 432 with message;
Wherein, inquiry submodule 431 is used to inquire about the corresponding pre-configured multiterminal oral thermometer of above-mentioned multiport index, obtains at least two ports preserving in the multiterminal oral thermometer;
Message is transmitted submodule 432, is used for above-mentioned message is forwarded to above-mentioned at least two ports.
Above-mentioned apparatus for forwarding message can realize that the message that client is sent to the Cluster Server group is forwarded to the port that connects the Cluster Server group, does not influence unsupported balanced port in the VLAN of Cluster Server group place, and then can improve load-balancing performance.
The present invention also provides a kind of switching equipment, and this switching equipment can comprise Fig. 4 of the present invention, Fig. 5 or the apparatus for forwarding message that provides embodiment illustrated in fig. 6.Above-mentioned switching equipment can be realized the network equipment of function of exchange for router or switch etc.
What should explain at last is: above each embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although the present invention has been carried out detailed explanation with reference to aforementioned each embodiment; 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, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (9)
1. a message forwarding method is characterized in that, comprising:
Receive the message that client sends to the Cluster Server group;
Purpose Media Access Control Address inquire address according to said message is transmitted, and obtains the corresponding multiport index of said purpose Media Access Control Address;
Said message is forwarded at least two corresponding ports of said multiport index, and said at least two ports are for connecting the port of said Cluster Server group.
2. method according to claim 1 is characterized in that, said purpose Media Access Control Address inquire address according to said message is transmitted, and obtains the corresponding multiport index of said purpose Media Access Control Address and comprises:
Purpose Media Access Control Address inquire address according to said message is transmitted, and obtains said purpose Media Access Control Address corresponding port number;
Judge that whether said port numbers is more than or equal to predetermined threshold;
If confirm that then said port numbers is the corresponding multiport index of said purpose Media Access Control Address.
3. method according to claim 1 is characterized in that, comprises the multiport index field in the said addresses forwarding table, and the value of multiport index field is the multiport index in the corresponding list item of said purpose Media Access Control Address;
Said purpose Media Access Control Address inquire address according to said message is transmitted, and obtains the corresponding multiport index of said purpose Media Access Control Address and comprises:
Purpose Media Access Control Address inquire address according to said message is transmitted; Obtain the value of multiport index field in the corresponding list item of said purpose Media Access Control Address, the value of said multiport index field is the corresponding multiport index of said purpose Media Access Control Address.
4. according to any described method of claim 1-3, it is characterized in that, saidly said message is forwarded at least two corresponding ports of said multiport index comprises:
Inquire about the corresponding pre-configured multiterminal oral thermometer of said multiport index, obtain at least two ports preserving in the said multiterminal oral thermometer;
Said message is forwarded to said at least two ports.
5. an apparatus for forwarding message is characterized in that, comprising:
Receiver module is used to receive the message that client sends to the Cluster Server group;
Obtain module, be used for transmitting, obtain the corresponding multiport index of said purpose Media Access Control Address according to the purpose Media Access Control Address inquire address of said message;
Forwarding module is used for said message is forwarded at least two corresponding ports of said multiport index, and said at least two ports are for connecting the port of said Cluster Server group.
6. device according to claim 5 is characterized in that, said acquisition module comprises:
The first inquiry submodule is used for transmitting according to the purpose Media Access Control Address inquire address of said message, obtains said purpose Media Access Control Address corresponding port number;
Judge submodule, be used to judge that whether said port numbers is more than or equal to predetermined threshold;
Confirm submodule, be used for when said judgement submodule is confirmed said port numbers more than or equal to said predetermined threshold, confirm that said port numbers is the corresponding multiport index of said purpose Media Access Control Address.
7. device according to claim 5 is characterized in that, said acquisition module comprises:
The second inquiry submodule; Be used for comprising the multiport index field when said addresses forwarding table; When the value of multiport index field is the multiport index in the corresponding list item of said purpose Media Access Control Address; Purpose Media Access Control Address inquire address according to said message is transmitted, and obtains the value of multiport index field in the corresponding list item of said purpose Media Access Control Address, and the value of said multiport index field is the corresponding multiport index of said purpose Media Access Control Address.
8. according to any described device of claim 5-7, it is characterized in that said forwarding module comprises:
The inquiry submodule is used to inquire about the corresponding pre-configured multiterminal oral thermometer of said multiport index, obtains at least two ports preserving in the said multiterminal oral thermometer;
Message is transmitted submodule, is used for said message is forwarded to said at least two ports.
9. a switching equipment is characterized in that, comprises any described apparatus for forwarding message like claim 5-8.
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| CN112887137A (en) * | 2021-01-22 | 2021-06-01 | 新华三信息安全技术有限公司 | Method and device for realizing interface index consistency |
| CN112887137B (en) * | 2021-01-22 | 2022-05-24 | 新华三信息安全技术有限公司 | Method and device for realizing interface index consistency |
| CN114039940A (en) * | 2021-12-09 | 2022-02-11 | 新华三大数据技术有限公司 | Data processing method and device |
| CN114039940B (en) * | 2021-12-09 | 2024-01-26 | 新华三大数据技术有限公司 | Data processing method and device |
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Application publication date: 20120718 |