CN104869038A - Computer networking method with redundancy function - Google Patents
Computer networking method with redundancy function Download PDFInfo
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- CN104869038A CN104869038A CN201510225181.2A CN201510225181A CN104869038A CN 104869038 A CN104869038 A CN 104869038A CN 201510225181 A CN201510225181 A CN 201510225181A CN 104869038 A CN104869038 A CN 104869038A
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Abstract
The invention provides a computer networking method with a redundancy function. The computer networking method comprises the following specific implementation steps: physically arranging two switches inside each subnet of computer networking, and implementing subnet internal link redundancy configuration inside the subnets through port binding, port aggregation and spanning tree enabling; and implementing inter-subnet routing redundancy configuration among the subnets through a VRRP (Virtual Router Redundancy Protocol), port aggregation and spanning tree enabling. Compared with the prior art, the computer networking method with the redundancy function has the advantages that the redundancy function of the computer networking is implemented; and when the switches fail, smooth communication is kept, so that data loss is avoided, and normal communication of data flow is realized. The computer networking method has high practicability, and is easy to popularize.
Description
Technical field
The present invention relates to technical field of the computer network, specifically a kind of construction of computer network method with redundancy feature.
Background technology
Switch needs the data receiving certain length to forward detection accordingly before carrying out swap operation, Layer2 switching is the forwarding that the target MAC (Media Access Control) address detected in data frame format realizes data, tri-level exchange is by detection Data expansion to IP packet header part, is carried out the forwarding of data by the IP address detected wherein.The communication mode actual use MAC Address of 802.3+IP network communicates, and in same data link layer, it uses ARP mode, directly obtains the MAC Address of the other side.If between different pieces of information link layer, then need router to forward, communication process is a process not stopping for source, object MAC to rewrite, and IP can not rewrite as logical address.
The maximum benefit of switch is quick, because switch only need identify MAC Address in frame, directly selects to forward port according to MAC Address, algorithm is simple, be convenient to ASIC realize, therefore forwarding speed is high, 100Mbps and 1Gbps communication link can accomplish surface speed forwarding.But the working mechanism of switch also brings the problem such as loop, load centralization, broadcast.Along with the development of technology, these problems are also obtained for reasonable solution now.
In the prior art, the establishment of computer network then depends on the various network equipment, as noted above switch and router etc.
Common network design switch (two layers) carries out subnet interconnected, carries out sub-network supporting base with router, but the normal three-tier switch that adopts replaces router to carry out network design at present.Three-tier switch both can carry out any virtual subnet division, can complete inter-subnet communication again, thus save expensive router by switch three layers of routing function.As shown in Figure 1.This networking mode does not possess redundancy feature, when switch breaks down, can cause the interruption of communication.Based on this, now provide a kind of and use switch to solve above-mentioned communicating interrupt problem, there is the construction of computer network method of redundancy feature.
Summary of the invention
Technical assignment of the present invention is in the deficiencies in the prior art, provides a kind of construction of computer network method with redundancy feature.
Technical scheme of the present invention realizes in the following manner, a kind of this construction of computer network method with redundancy feature, its specific implementation process is, first inner at each subnet of construction of computer network, physically be equipped with two switches, described subnet is inner by port binding, port trunking and enable spanning tree mode and realize subnet inner link redundant configuration; By VRRP, port trunking and enable spanning tree mode and to realize between subnet route redundancy configuration between subnet.
In described network-building method, each subnet is inner, software is equipped with network interface binding, spanning tree STP/RSTP and link aggregation, provides the automatic fault handoff functionality of data link; Interconnect between subnet, be equipped with two switches physically, software be equipped with virtual route redundancy VRRP, spanning tree STP/RSTP and link aggregation, the redundancy feature of routing node is provided.
Described subnet internal network connection procedure is: possess at least two-way network at the computer that subnet is inner and switch is interconnected, be connected respectively to two switches, and interconnected by trunk mouth between switch after binding.
Network attach procedure between described subnet is: each switch of each subnet is simultaneously attached to two three-tier switch, and is interconnected by trunk mouth between three-tier switch;
Run RSTP on the device, set up spanning tree;
Carry out VRRP configuration at two switches simultaneously, and enable track function monitoring upstream Interface, after solution up link breaks down, the synchronism switching of main and standby relation, realizes the normal communication of upstream.The beneficial effect that the present invention is compared with prior art produced is:
A kind of construction of computer network method with redundancy feature of the present invention achieves the redundancy feature of construction of computer network, and when switch breaks down, communication keeps unimpeded, avoids the loss of data, realizes the normal communication of data flow, practical, is easy to promote.
Accompanying drawing explanation
Accompanying drawing 1 is traditional computer networking schematic diagram.
Accompanying drawing 2 is networking schematic diagrames of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of construction of computer network method with redundancy feature provided by the present invention is described in detail below.
Have a construction of computer network method for redundancy feature, in subnet, the network equipment is Layer 2 switch, and it possesses mac learning function, forwards based on MAC Address.Time interconnected between switch, configurable multiple port trunking also adopts trunk pattern to connect.When adopting multiple port to connect among the switches, can network loop be formed, thus cause broadcast storm.Spanning-Tree Protocol, by running spanning tree algorithm at switch, makes redundancy port be placed in " blocked state ", and automatically find a network not having the tree topology of loop, this network has enough connections to lead to each part of whole network.
Between subnet, the network equipment is three-tier switch, and it carries out addressing according to IP address, selects route by routing table, and routing table is produced by Routing Protocol, and foundation and the maintenance of routing table are carried out automatically by switch.The foundation of routing table comprises static routing, dynamic routing and virtual redundancy route (VRRP) three kinds of modes.The set of router of subnet (comprising a Master and active router and several Backup and backup router) is organized into a virtual router by VRRP, is referred to as a backup group.Main frame in network is just communicated with other network by this virtual router.If the Master router in backup group breaks down, Backup router will select a new Master router by election strategy, continues to provide route service to the main frame in network.Thus the main frame realized in network communicates with external network incessantly.
As shown in Figure 2, the detailed process of the method is: first inner at each subnet of construction of computer network, physically be equipped with two switches, described subnet is inner by port binding, port trunking and enable spanning tree mode and realize subnet inner link redundant configuration; By VRRP, port trunking and enable spanning tree mode and to realize between subnet route redundancy configuration between subnet.
In described network-building method, each subnet is inner, software is equipped with network interface binding, spanning tree STP/RSTP and link aggregation, provides the automatic fault handoff functionality of data link; Interconnect between subnet, be equipped with two switches physically, software be equipped with virtual route redundancy VRRP, spanning tree STP/RSTP and link aggregation, the redundancy feature of routing node is provided.
Described subnet internal network connection procedure is: possess at least two-way network at the computer that subnet is inner and switch is interconnected, be connected respectively to two switches, and interconnected by trunk mouth between switch after binding.
Network attach procedure between described subnet is: each switch of each subnet is simultaneously attached to two three-tier switch, and is interconnected by trunk mouth between three-tier switch;
Run RSTP on the device, set up spanning tree, solve the problem owing to carrying out existing in same broadcast domain that double layer intercommunication causes loop between switch;
Carry out VRRP configuration at two switches simultaneously, and enable " track " function monitoring upstream Interface, after solution up link breaks down, the synchronism switching of main and standby relation, realizes the normal communication of upstream.
By reference to the accompanying drawings 2, specific embodiment of the invention process is:
1) computer is accessed respectively two Layer 2 switch, and carry out port binding;
2) layer 2-switched port is bound, carry out between switch interconnected after being configured to trunk pattern, enable RSTP Spanning-Tree Protocol on switches simultaneously;
3) by two three-tier switch composition VRRP backup groups, and the computer gateway of subnet inside is configured to this virtual gateway, uses trunk mode port carry out interconnected and run stp spanning-tree protocol between two switches simultaneously;
4) all there is n computer each subnet inside, and when the computer 1 of subnet inside needs communication to computer n, communication path has two, is namely communicated by switch 2 or switch 1;
If occur in figure
shown in Single Point of Faliure, data can bypass switch 2 and transfer to computer n by switch 1;
If occur in figure
shown in Single Point of Faliure, be sent to switch 2 data can normal transmission to computer n.The data being sent to switch 1 will go to switch 2 through trunk link, then be sent to computer n by switch 2;
If occur in figure
,
during place's multipoint fault, first data will be sent to switch 1, then go to switch 2 through trunk link, then be sent to computer n by switch 2;
5) when the computer 1 of subnet 1 needs communication to the computer n in subnet 3, if occur in figure
during place's fault, can carry out transfer of data between subnet 1 and subnet 3 by this virtual gateway, the data sent from subnet 1 can be gone to the switch 2 of subnet 3 by VRRP backup group automatically, and are finally sent to the computer n of its inside.
Except the technical characteristic described in specification, be the known technology of those skilled in the art.
Claims (4)
1. one kind has the construction of computer network method of redundancy feature, it is characterized in that, specific implementation process is, first inner at each subnet of construction of computer network, physically be equipped with two switches, described subnet is inner by port binding, port trunking and enable spanning tree mode and realize subnet inner link redundant configuration; By VRRP, port trunking and enable spanning tree mode and to realize between subnet route redundancy configuration between subnet.
2. a kind of construction of computer network method with redundancy feature according to claim 1, it is characterized in that, in described network-building method, each subnet is inner, software is equipped with network interface binding, spanning tree STP/RSTP and link aggregation, the automatic fault handoff functionality of data link is provided; Interconnect between subnet, be equipped with two switches physically, software be equipped with virtual route redundancy VRRP, spanning tree STP/RSTP and link aggregation, the redundancy feature of routing node is provided.
3. a kind of construction of computer network method with redundancy feature according to claim 2, it is characterized in that, described subnet internal network connection procedure is: possess at least two-way network at the computer that subnet is inner and switch is interconnected, be connected respectively to two switches after binding, and interconnected by trunk mouth between switch.
4. a kind of construction of computer network method with redundancy feature according to claim 3, it is characterized in that, network attach procedure between described subnet is: each switch of each subnet is simultaneously attached to two three-tier switch, and is interconnected by trunk mouth between three-tier switch;
Run RSTP on the device, set up spanning tree;
Carry out VRRP configuration at two switches simultaneously, and enable track function monitoring upstream Interface, after solution up link breaks down, the synchronism switching of main and standby relation, realizes the normal communication of upstream.
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Cited By (6)
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| CN106936613A (en) * | 2015-12-31 | 2017-07-07 | 北京网御星云信息技术有限公司 | A kind of method and system of Openflow interchangers quick master-slave switching |
| CN107682286A (en) * | 2017-09-22 | 2018-02-09 | 山东超越数控电子有限公司 | A kind of server group planar network architecture of high link stability |
| CN108989147A (en) * | 2018-07-16 | 2018-12-11 | 西安电子科技大学 | SDN network Flow Measuring System and method based on FPGA |
| CN110011841A (en) * | 2019-03-27 | 2019-07-12 | 山东超越数控电子股份有限公司 | A kind of network-building method of three-layer network link redundancy |
| CN110572289A (en) * | 2019-09-11 | 2019-12-13 | 浙江众合科技股份有限公司 | Main/standby switching system based on third-party channel |
| CN114785636A (en) * | 2022-03-23 | 2022-07-22 | 中国第一汽车股份有限公司 | Method and system for realizing welding network communication of three-layer switch |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936613A (en) * | 2015-12-31 | 2017-07-07 | 北京网御星云信息技术有限公司 | A kind of method and system of Openflow interchangers quick master-slave switching |
| CN107682286A (en) * | 2017-09-22 | 2018-02-09 | 山东超越数控电子有限公司 | A kind of server group planar network architecture of high link stability |
| CN108989147A (en) * | 2018-07-16 | 2018-12-11 | 西安电子科技大学 | SDN network Flow Measuring System and method based on FPGA |
| CN110011841A (en) * | 2019-03-27 | 2019-07-12 | 山东超越数控电子股份有限公司 | A kind of network-building method of three-layer network link redundancy |
| CN110572289A (en) * | 2019-09-11 | 2019-12-13 | 浙江众合科技股份有限公司 | Main/standby switching system based on third-party channel |
| CN114785636A (en) * | 2022-03-23 | 2022-07-22 | 中国第一汽车股份有限公司 | Method and system for realizing welding network communication of three-layer switch |
| CN114785636B (en) * | 2022-03-23 | 2023-10-27 | 中国第一汽车股份有限公司 | Method and system for realizing welding network communication by three-layer switch |
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