CN105245429A - Device and method for realizing high-capacity request forwarding in vehicle-mounted terminal monitoring - Google Patents
Device and method for realizing high-capacity request forwarding in vehicle-mounted terminal monitoring Download PDFInfo
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- CN105245429A CN105245429A CN201510758729.XA CN201510758729A CN105245429A CN 105245429 A CN105245429 A CN 105245429A CN 201510758729 A CN201510758729 A CN 201510758729A CN 105245429 A CN105245429 A CN 105245429A
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- mounted terminal
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Abstract
The invention relates to the technical field of vehicle terminal monitoring, and discloses a device and a method for realizing high-capacity request forwarding in vehicle-mounted terminal monitoring. The device comprises a vehicle-mounted terminal and at least two front-end processors, and is configured with an active repeater and a standby repeater, wherein the vehicle-mounted terminal is communicated with the active repeater through a virtual network; the active repeater is communicated with the standby repeater through a VRRP (Virtual Router Redundancy Protocol) protocol; the two front-end processors are communicated with the active repeater through the virtual network; and the front-end processors are communicated with the vehicle-mounted terminal through a wireless network. The method is applied to the device. The method comprises the following steps that: the vehicle-mounted terminal sends a request to the active repeater through the virtual network; the active repeater looks up a virtual routing table according to the request, selects a front-end processor RIP according to a roll polling algorithm, modifies a destination MAC (Media Access Control) address of a request packet into an MAC address corresponding to the front-end processor RIP, and forwards the request packet to a corresponding front-end processor; and the front-end processor directly sends a reply to the vehicle-mounted terminal through the wireless network after a response indicating that the request packet passes verification is received. Through adoption of the device and the method, the data requesting efficiency is increased.
Description
Technical field
The present invention relates to vehicle termination monitoring technique field, be specifically related to the device and method realizing Large Copacity request forward in car-mounted terminal monitoring.
Background technology
Car-mounted terminal is that the front end processor realizing enjoying with cloud platform by Transmission Control Protocol carries out information interaction, but the development of platform is As time goes on enjoyed with cloud, by use and can increase with the car-mounted terminal that platform carries out information interaction thereupon, all request responses are all process in single front end processor, and the burden that so front end processor bears also can be more and more heavier.We have the performance of the elevator system such as mode, program modularity, database point storehouse submeter by Optimized code, but the performance issue produced when all not solving more jumbo car-mounted terminal and front end processor information interaction well.When hardware resource is limited, in order to alleviate the pressure of front end processor server as far as possible, the server burden that Large Copacity request produces becomes industry problem demanding prompt solution.
Summary of the invention
Solve the problems of the technologies described above, the invention provides the device and method realizing Large Copacity request forward in car-mounted terminal monitoring, by configuration main transponder and standby transponder, and disposed by virtual network, principal and subordinate's transponder is made to carry out virtual map with front end processor respectively, realize the request mean allocation of car-mounted terminal, greatly improve request of data efficiency.
In order to achieve the above object, the technical solution adopted in the present invention is, realize the device of Large Copacity request forward in car-mounted terminal monitoring, comprise car-mounted terminal and at least two front end processors, configure a main transponder and a standby transponder, described car-mounted terminal and main transponder are by virtual network communication, and main transponder and standby transponder are by VRRP protocol communication, two front end processors and main transponder are by virtual network communication, and front end processor and car-mounted terminal pass through wireless communication.
Further, the number of front end processor is multiple.
Further, main transponder number is one, and the number of standby transponder is one or more, and the priority of main transponder is greater than the priority of standby transponder.
Further, described main transponder and a standby transponder all adopt based on Linux system.
Realize the method for Large Copacity request forward in car-mounted terminal monitoring, apply to said apparatus, comprise the following steps:
Car-mounted terminal is sent request to main transponder by virtual network, main transponder searches virtual routing tables according to this request, a front end processor RIP is selected according to polling algorithm, and the target MAC (Media Access Control) address of request bag is modified as MAC Address corresponding to front end processor RIP, and by this request Packet forwarding to corresponding front end processor
Front end processor receives request bag by after auth response, directly response is sent to car-mounted terminal by wireless network.
Further, when main transponder delays machine, the MAC Address corresponding to VIP is modified as the MAC Address of standby transponder.
The present invention is by adopting technique scheme, and compared with prior art, tool has the following advantages:
The request bag of car-mounted terminal has effectively been flow on two front end processors by average mark by the present invention, accelerates the benefit of request msg process, also mitigates the pressure of front end processor server simultaneously, reaches the effect of front end processor load balancing.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention.
Embodiment
Now the present invention is further described with embodiment by reference to the accompanying drawings.
As a specific embodiment, as shown in Figure 1, the device realizing Large Copacity request forward in car-mounted terminal monitoring of the present invention, comprise car-mounted terminal and at least two front end processors, configure a main transponder and a standby transponder, described car-mounted terminal and main transponder are by virtual network communication, and main transponder and standby transponder are by ARP protocol communication, two front end processors and main transponder are by virtual network communication, and front end processor and car-mounted terminal pass through wireless communication.
In the present embodiment, the number of front end processor is two, namely adopts two front end processors to test.
In the present embodiment, main transponder number is one, and the number of standby transponder is one or more, and the priority of main transponder must be greater than the priority of standby transponder.
In the present embodiment, described main transponder and a standby transponder all adopt based on Linux system.
Select the server of a Linux system as main transponder, main transponder arranges virtual network, copy a network interface card, binding virtual IP address (VIP), and open front end processor miniport service and two front end processors (server) based on Linux system at sensing front end processor place.So, in the virtual server table table of main frame, just had a virtual server record, and this server record has had two front end processor (server) P(RIP) mapping.Meanwhile, two front end processors also need binding with a virtual IP address, and all dispose a front end processor.
In the present embodiment, the setting of standby transponder is the same with arranging of main transponder, and unique difference is exactly the priority of priority lower than main transponder of standby transponder.
Realize the method for Large Copacity request forward in car-mounted terminal monitoring, apply to said apparatus, comprise the following steps:
Car-mounted terminal is sent request to main transponder by virtual network, main transponder finds front end processor RIP corresponding to car-mounted terminal according to this request, and the target MAC (Media Access Control) address of request bag is modified as MAC Address corresponding to front end processor RIP, and by this request Packet forwarding to corresponding front end processor
Front end processor receives request bag by after auth response, by the virtual IP address of respond packet and clientIP upset, directly response is sent to car-mounted terminal by wireless network.
forwarding mechanism:
The virtual IP address that car-mounted terminal 1 asks VIP(main transponder to be bound), send request directly to main transponder, after main transponder receives request, the algorithm that VIP in virtual routing tables forwards according to poll, alternately finds the RIP in mapping, and after the selected RIP1 that takes the lead in, main transponder can MAC Address from ARP agreement (address resolution protocol) buffer memory corresponding to RIP1, the target MAC (Media Access Control) address of request bag has been modified as the MAC Address corresponding to RIP1, and request will be forwarded to RIP1.So, the request of following car-mounted terminal 2 will be forwarded to RIP2 according to algorithm, by that analogy.
VIP and clientIP of respond packet overturns by after auth response by front end processor server, directly response is returned to car-mounted terminal.
Further, when main transponder delays machine, MAC Address corresponding for all front end processors is modified as the MAC Address of standby transponder.
active-standby switch:
Active and standby transponder in local area network (LAN) constitutes a virtual router group, and main transponder, as virtual active router, according to VRRP agreement (Virtual Router Redundacy Protocol), constantly can send VRRP bag to standby transponder.According to ARP agreement (the peculiar agreement of main frame), the virtual IP address of VIP(main transponder binding) corresponding to MAC Address be the MAC Address of main transponder.When main transponder delays machine, standby transponder will can not receive packet, but can receive an ARP bag, tells that the MAC Address corresponding to All hosts VIP becomes the MAC Address of standby transponder, therefore will substitute main transponder for transponder, be responsible for the forwarding work from car-mounted terminal request.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (6)
1. realize the device of Large Copacity request forward in car-mounted terminal monitoring, it is characterized in that: comprise car-mounted terminal and at least two front end processors, configure a main transponder and a standby transponder, described car-mounted terminal and main transponder pass through virtual network communication, main transponder and standby transponder are by VRRP protocol communication, two front end processors and main transponder are by virtual network communication, and front end processor and car-mounted terminal pass through wireless communication.
2. the device realizing Large Copacity request forward in car-mounted terminal monitoring according to claim 1, is characterized in that: the number of front end processor is multiple.
3. the device realizing Large Copacity request forward in car-mounted terminal monitoring according to claim 1, is characterized in that: main transponder number is one, and the number of standby transponder is one or more, and the priority of main transponder is greater than the priority of standby transponder.
4. realize the method for Large Copacity request forward in car-mounted terminal monitoring, apply to the device of claim 1-4, it is characterized in that: the device realizing Large Copacity request forward in car-mounted terminal monitoring, is characterized in that: described main transponder and a standby transponder all adopt based on Linux system.
5. realize the method for Large Copacity request forward in car-mounted terminal monitoring, apply to the device of claim 1-4, it is characterized in that: comprise the following steps:
Car-mounted terminal is sent request to main transponder by virtual network, main transponder searches virtual routing tables according to this request, a front end processor RIP is selected according to polling algorithm, and the target MAC (Media Access Control) address of request bag is modified as MAC Address corresponding to front end processor RIP, and by this request Packet forwarding to corresponding front end processor
Front end processor receives request bag by after auth response, directly response is sent to car-mounted terminal by wireless network.
6. the method realizing Large Copacity request forward in car-mounted terminal monitoring according to claim 5, is characterized in that: when main transponder delays machine, the MAC Address corresponding to virtual IP address is modified as the MAC Address of standby transponder.
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| CN201510758729.XA CN105245429A (en) | 2015-11-10 | 2015-11-10 | Device and method for realizing high-capacity request forwarding in vehicle-mounted terminal monitoring |
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| CN106155637A (en) * | 2016-07-26 | 2016-11-23 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of Multi-target machine parallel communication method based on redundance |
| CN107360264A (en) * | 2016-05-10 | 2017-11-17 | 平安科技（深圳）有限公司 | A kind of communication means and terminal based on SDN |
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