CN1741405A - Communication system and method for realizing back-up and negation - Google Patents
Communication system and method for realizing back-up and negation Download PDFInfo
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- CN1741405A CN1741405A CNA2004100767147A CN200410076714A CN1741405A CN 1741405 A CN1741405 A CN 1741405A CN A2004100767147 A CNA2004100767147 A CN A2004100767147A CN 200410076714 A CN200410076714 A CN 200410076714A CN 1741405 A CN1741405 A CN 1741405A
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Abstract
A method for realizing back - up and rotation function of communication system includes adding two Ethernet exchanger between PDN and communication entity and disposing communication entity with master and back - up relation , connecting each communication entity separately to two Ethernet exchangers through master and back - up Ethernet port , simultaneously connecting two Ethernet exchanger with each other .
Description
Technical field
The present invention relates to the communications field, particularly the backup of communication system and switching technique.
Background technology
Along with the continuous intensification of the level of informatization, the mankind are more and more higher to the requirement of capacity, speed, quality and the type service of communication.A common 80Gb/s capacity of communication system has been equivalent to 100 No. ten thousand phones, and it is that unit calculates speech channel that the Tb/s level system then rises to ten million the tunnel.Huge like this information capacity, in case facility communication system or communication port lost efficacy, its influence surface is wide, the heaviness of economic loss is difficult to the imagination.And along with popularizing of personal computer and Internet, the develop rapidly of data service and E-mail communication and various broadband access technologys has proposed strict more requirement for the reliability of communication network and communication equipment.
At present, the mode that adopts backup to switch is to satisfy a kind of key technology of the high reliability request of communication system, if promptly in the communication port certain equipment take place to interrupt and can be switched to soon on the stand-by equipment, unaffected to guarantee regular traffic.But, back up and switch design and realize all more complicated, often at specific application scenarios, need carry out special software and hardware setting, software and hardware all there is higher requirement.In some application scenarios, we need a kind ofly utilize existing common apparatus, and do not need to introduce in addition under the situation of any complicated software and hardware cooperation processing, just can realize backing up the strategy of switching.
Introduce the method that Packet Data Network in two kinds of prior aries (Packet Data Network is called for short " PDN ") and communication entity communicate below.A kind of method is with reference to Fig. 1, and the communication entity 13,14 and 15 among the figure is connected to hub (HUB) 12 by netting twine respectively, and HUB12 is connected to PDN11 by netting twine.In this scheme, be connected with a plurality of communication entities by HUB12, make the external interface of PDN obtain certain expansion.
Another kind method is referring to Fig. 2, and two communication entity A22 with main and standby relation and communication entity A ' the 23 active and standby network interface by separately respectively are connected to PDN21.In this case, break down with communication entity A22, then proceed communication by spare communication entity A 23 when main.
In actual applications, there is following problem in such scheme: the communication reliability of first kind of technical scheme is relatively poor.The PDN of second kind of scheme is limited to external port, has limited the quantity of the communication equipment that can insert, thereby has influenced PDN efficient, and on the other hand, the realization cost of second kind of scheme is very high.
Cause the main cause of this situation to be, in first kind of scheme, only realize HUB12 and PDN11 by single netting twine, and being connected between HUB12 and communication entity 13,14 and 15, netting twine between them breaks down, and then can directly influence normally carrying out of communication.
And,, must between communication entity and PDN, increase active and standby moderator owing to will realize the backup of communication entity according to second kind of scheme, and therefore implementing very complexity, cost is also very high.Simultaneously communication entity directly takies the external interface of PDN, and the current number of devices that allows to insert PDN has been received restriction.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of and realizes backing up and the communication system of switch function and a kind of backup and switch function implementation method of communication system, make it possible to realize the backup of high reliability and switch with respect to first kind of technical scheme, simultaneously expanded PDN to external port with respect to second kind of technical scheme, and implementation is simpler, and cost is also lower.
For achieving the above object, the invention provides a kind of communication system that realizes backing up with switch function, comprise at least two communication entities, also comprise with active and standby Ethernet interface:
Two Ethernet switches, and described each communication entity is connected with two described Ethernet switches respectively by active and standby Ethernet interface;
Two described Ethernet switches are connected with the upper level network respectively.
Wherein, interconnect between two described Ethernet switches.
Described upper level network is a Packet Data Network.
Described system comprises two communication entities with main and standby relation.
Described communication entity can be computer or server.
The present invention also provides a kind of backup and switch function implementation method of communication system, and the method includes the steps of:
The described communication entity of A judge its main whether can operate as normal with Ethernet interface, if can, then insert first Ethernet switch with Ethernet interface by this master, and enter step B, otherwise, insert second Ethernet switch by standby Ethernet interface, and enter step C;
Described first Ethernet switch of B judges whether the link that is connected to the upper level network is effective, if, then insert described upper level network by this link, otherwise, by the link between described first Ethernet switch and described second Ethernet switch, and second the link between Ethernet switch and the described upper level network, insert described upper level network;
Described second Ethernet switch of C judges whether the link that is connected to the upper level network is effective, if, then insert described upper level network by this link, otherwise, by the link between described second Ethernet switch and described first Ethernet switch, and first the link between Ethernet switch and the described upper level network, insert described upper level network.
Wherein, described upper level network is a Packet Data Network.
Described communication entity can be computer or server.
In addition, described method also comprises step:
When described communication entity breaks down, start its spare communication entity and use communication entity as main, and execution in step A.
By relatively finding, technical scheme difference with the prior art of the present invention is, two Ethernet switches between PDN and communication entity, have been increased, and be equipped with communication entity with main and standby relation, each communication entity all is connected with above-mentioned two Ethernet switches by active and standby Ethernet interface respectively, simultaneously, also interconnect between two Ethernet switches.
Difference on this technical scheme has brought comparatively significantly beneficial effect, and the Ethernet switch by increasing has avoided communication entity to be directly connected to PDN on the one hand, has expanded the external port of PDN, has improved the ability of PDN; The communication entity that has main and standby relation on the other hand can substitute its work under main situation about breaking down with communication entity, thereby has effectively guaranteed the reliability of communication, and this implementation is fairly simple, and cost is also lower; In addition, interconnect between the Ethernet switch also and can further improve the reliability of communication.
Description of drawings
Fig. 1 is PDN and a communication entity method of attachment schematic diagram in the prior art;
Fig. 2 is another PDN and a communication entity method of attachment schematic diagram in the prior art;
Fig. 3 is the structural formula intention of the communication system of realization backup according to an embodiment of the invention and switch function;
Fig. 4 is the schematic flow sheet according to the backup of the communication system of first embodiment of the invention and switch function implementation method.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Generally speaking, principle of the present invention is, by two Ethernet switches are set in system, and the communication entity that has main and standby relation, and the active and standby Ethernet interface in the communication entity is respectively by being connected with two Ethernet switches, be connected to the upper level network by Ethernet switch again, simultaneously, also interconnect between the Ethernet switch by netting twine, thereby realized when the purpose of leading when breaking down by standby current its operate as normal of equipment replacement on the one hand with communication entity with lower cost, on the other hand by Ethernet switch expanded PDN to external port, and improved the reliability of communication owing to multiple communication path.
Below in conjunction with Fig. 3, further explain and illustrate the formation and the operation principle of the communication system of realization backup that the present invention proposes and switch function.
As shown in the figure, native system comprises main communication entity B31 and spare communication entity B ' 32, Ethernet switch (Lanswitch) 33, Ethernet switch 34, PDN30, Ethernet switch A37, Ethernet switch B38, the main communication entity A39 with main and standby relation and spare communication entity A ' 40 with main and standby relation, and the Ethernet switch 35 and the Ethernet switch 36 that are arranged in PDN30.Wherein each communication entity all includes a major network card and a standby network interface card, is respectively arranged with Ethernet interface on the network interface card, and promptly active and standby Ethernet interface is used for being connected with outside.
As seen from Figure 3, main communication entity A39, spare communication entity A ' 40 link to each other with Ethernet switch B38 with Ethernet switch A37 respectively by active and standby network interface card separately, and Ethernet switch A37 and Ethernet switch B38 are except interconnection, also be connected with the upper level network by netting twine respectively, in the present embodiment, be connected to Ethernet switch 36 among the PDN30; Same, communication entity B31 and communication entity B ' 32 are by their active and standby network interface card, be connected respectively to Ethernet switch 33 and Ethernet switch 34, these two Ethernet switches interconnect, and be connected to the upper level network, in the present embodiment, be connected to Ethernet switch 35 among the PDN30.
It is pointed out that in other embodiment, both can comprise the communication entities with main and standby relation more, also two Ethernet switches can only be set, be used for being connected between communication entity and the PDN according to principle of the present invention.
Main communication entity A39 can be the initial sender of data, can be the final data recipient also, and the people who is familiar with this area should be understood that the communication entity of indication among the present invention can be computer or server.
For main communication entity 39, as mentioned above, it links to each other with Ethernet switch 38 with Ethernet switch 37 respectively with B by netting twine A by its built-in active and standby network interface card.Be configured in the state that operating system on the main communication entity 39 or software detect network interface card in real time, judge whether network interface card can operate as normal.The function of spare communication entity A ' 40 and to connect mode outward the same fully with main communication entity A39, it is also by its built-in active and standby network interface card, link to each other with Ethernet switch B38 with Ethernet switch A37 with D by netting twine C, in other words, it is exactly in fact the copy of main communication entity A39, when main communication entity A39 breaks down and during cisco unity malfunction, it just proceeds with one's work as the backup of main communication entity A39.
Ethernet switch 37 is connected with the upper level network with netting twine E by netting twine F respectively with Ethernet switch 38, as mentioned above, and in the present embodiment, the upper level network is PDN31, specifically, be that wherein Ethernet switch 36 links to each other, also link to each other between them simultaneously by netting twine.Those of ordinary skill in the art know that Ethernet switch adopts full duplex (Full Duplex) communication mode, just can receive data simultaneously and send data; The principle of Ethernet switch is exactly that its detects the source address of the Frame that receives from the ether port and media interviews control (the Medium AccessControl of destination, be called for short " MAC "), dynamic routing table with internal system compares then, if Frame gets MAC Address not in routing table, then this address is joined in the routing table, then Frame is sent to the corresponding target port; Ethernet switch generally adopts storage to transmit exchange (store andforward swith) or straight-through exchange (cut through swith) mode, store-and-forward mode is meant after a port is received Frame and is temporarily stored in buffering area, destination address according to Frame is forwarded to suitable port then, and straight-through exchanged form determines its forwarding port when being meant receiving data frames immediately according to the destination address of Frame.Present popular on the market intelligent switch generally has self-learning function, automatically the physical address of port institute attached device is kept in the address table of oneself.The purpose that in the technical program Ethernet switch 37 is linked to each other with Ethernet switch 38 is just utilized the self-learning function of switch, monitor the other side's operating state, when finding that master ethernet switch 37 is out of order, switch to standby Ethernet switch 38 immediately and work on, realize switching of communication very easily.
PDN30 logically is a netted topological structure, and it is made up of with the high-speed link that is connected these switches several contact switches (nodeswitch).Each contact switch is all the same to the processing mode of data grouping, and the packet elder generation buffer memory that is about to receive is searched routing table then, gives suitable port with this grouping at last and is forwarded to next node.PDN supports a series of procotol, under the cooperation of user's access protocol, can be a plurality of user's services simultaneously, realize different rates, different terminals and terminal, the communication between different terminals and computer and the local area network (LAN) (Local Area Network is called for short " LAN "); PDN generally can provide two kinds of basic services: crossover virtual circuit (Switch VirtualCircuit is called for short " SVC ") and permanent type virtual circuit (Permanent Virtual Circuit is called for short " PVC ").
As shown in Figure 3, the Ethernet switch 33 and the Ethernet switch 34 that are connected with Ethernet switch among the PDN30 35 also are connected to each other, their function and above-mentioned Ethernet switch 37, Ethernet switch 38 are just the same, utilize the self-learning function of switch equally, when Ethernet switch 33 breaks down, automatically switch on the Ethernet switch 34 and work.
Be similar to main communication entity A39 and spare communication entity A ' 40 thereof, when main communication entity B31 broke down, its work was just taken in spare communication entity B ' 32.They also can be computer or server, also link to each other with Ethernet switch 33, Ethernet switch 34 respectively by netting twine by built-in active and standby network interface card, realize the backup of communicating by letter or switch.
Being transferred to main communication entity B31 with data from main communication entity A39 below is example, in conjunction with the accompanying drawings 3, specifically describe in detail according to the technical program, each Single Point of Faliure when how backup by communication system equipment and switch function solve communication between main communication entity A39, the main communication entity B31, thus realize reliable transfer of data.
Data from the concrete communication port that main communication entity A39 is transferred to main communication entity B31 process are: data are crossed netting twine A from the major network cartoon of main communication entity A39 and are transferred to Ethernet switch A37, Ethernet switch A37 passes through netting twine F with data, be forwarded to certain Ethernet switch 36 of PDN30, data finally are forwarded on the Ethernet switch 35 in PDN30, then data are forwarded on the Ethernet switch 33 that is connecting main communication entity B31, final data is transferred among the main communication entity B31 by the major network card, and any one communication equipment all may break down in this communication port.To analyze one by one the settling mode of contingent various faults and the technical program correspondence in the communication port below.
When system detected main communication entity A39 and breaks down, then system can start standby spare communication entity A ' 40 and works on.
When the specific software that is configured in main communication entity A39 detects the major network card and breaks down, then communication entity just automatically switches on the standby network interface card, data just are transferred on the Ethernet switch B38 by the netting twine B that is connected on the standby network interface card like this, send on the PDN30 by netting twine E then.
When netting twine A cisco unity malfunction, when the software detection on the then main communication entity A39 arrives these abnormal conditions, just start the standby network interface card that is connected with netting twine B immediately, realize the automatic switchover of netting twine A to netting twine B, data also just are transferred on the Ethernet switch B38 by the netting twine B that is connected on the standby network interface card 5 like this, deliver to PDN30 then and go up transmission.
When Ethernet switch A37 cisco unity malfunction, because Ethernet switch B38 and Ethernet switch A37 are interconnected, Ethernet switch B38 listens to Ethernet switch A37 very soon and breaks down like this, convenient self-learning function with switch is realized automaticallying switch, Ethernet switch B38 activates and starts working, and main communication entity A39 also switches on the standby network interface card, data are sent on the Ethernet switch B38 by netting twine B, then be forwarded to PDN30 and go up the continuation transmission by netting twine E, with it simultaneously, Ethernet switch 36 on the PDN30 is also revised the routing table of oneself, the address of Ethernet switch B38 is write address table, be sent on the Ethernet switch B38 by netting twine E (rather than netting twine F) so that main communication entity B31 is sent to the data (such as feedback information) of main communication entity A39, send back main communication entity A39 again.
When if netting twine F breaks down, Ethernet switch A37 detects the port that links to each other with netting twine A and can not work, then utilize the address learning function of switch, revise routing table, the address of Ethernet switch B38 is write address table, the data that receive are forwarded on the Ethernet switch B38 by netting twine E, be forwarded to PDN30 by Ethernet switch B38 and go up transmission, with it simultaneously, Ethernet switch 36 on the PDN30 is also revised the routing table of oneself, the address of Ethernet switch B38 is write address table, be sent on the Ethernet switch B38 by netting twine E so that main communication entity B31 is sent to the data (such as feedback information) of main communication entity A39, send back main communication entity A39 again.Because the symmetry of network topology structure in the accompanying drawing 3, the fault solution of communication path is in full accord between the fault solution of communication path between main communication entity B31 and the PDN30 and main communication entity A39 and PDN30, just is not repeated here.
In conjunction with one embodiment of the present of invention, describe and analyzed principle of the present invention in detail above, concise and to the point more below backup and the switch function implementation method of describing the communication system that proposes according to the principle of the invention.Referring to Fig. 4, in the method, at first in step 400, communication entity judge its main whether can operate as normal with Ethernet interface, if can, then enter step 410, insert first Ethernet switch by this master with Ethernet interface, and enter step 430; Otherwise, enter step 420, insert second Ethernet switch by standby Ethernet interface, and enter step 440.In step 430, first Ethernet switch judges whether the link that is connected to the upper level network is effective, if, then enter step 450, insert the upper level network by this link; Otherwise, enter step 460, by the link between first Ethernet switch and second Ethernet switch, and the link between second Ethernet switch and the upper level network, insert described upper level network.On the other hand, in step 440, because communication entity inserts second Ethernet switch by standby Ethernet interface, therefore in this step, second Ethernet switch judges whether the link that is connected to the upper level network is effective, if, then enter step 470, insert the upper level network by this link, otherwise, enter step 480, by the link between second Ethernet switch and first Ethernet switch, and first the link between Ethernet switch and the upper level network, insert described upper level network.In the present embodiment, the upper level network can be PDN, and described communication entity can be computer or server.
Need to prove in addition, in according to another embodiment of the invention, can stand-by equipment be set for communication entity.By the active and standby communication entity of using, when the master is broken down with communication entity, substitute work by the spare communication entity, can better promote security of communication system.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (9)
1. a communication system that realizes backing up with switch function comprises at least two communication entities with active and standby Ethernet interface, it is characterized in that, also comprises:
Two Ethernet switches, and
Described each communication entity is connected with two described Ethernet switches respectively by active and standby Ethernet interface;
Two described Ethernet switches are connected with the upper level network respectively.
2. the communication system of realization backup according to claim 1 and switch function is characterized in that, interconnects between two described Ethernet switches.
3. the communication system of realization backup according to claim 2 and switch function is characterized in that, described upper level network is a Packet Data Network.
4. the communication system of realization backup according to claim 2 and switch function is characterized in that, described system comprises two communication entities with main and standby relation.
5. the communication system of realization backup according to claim 2 and switch function is characterized in that, described communication entity can be computer or server.
6. the backup of a communication system and switch function implementation method is characterized in that,
Comprise following steps:
The described communication entity of A judge its main whether can operate as normal with Ethernet interface, if can, then insert first Ethernet switch with Ethernet interface by this master, and enter step B, otherwise, insert second Ethernet switch by standby Ethernet interface, and enter step C;
Described first Ethernet switch of B judges whether the link that is connected to the upper level network is effective, if, then insert described upper level network by this link, otherwise, by the link between described first Ethernet switch and described second Ethernet switch, and second the link between Ethernet switch and the described upper level network, insert described upper level network;
Described second Ethernet switch of C judges whether the link that is connected to the upper level network is effective, if, then insert described upper level network by this link, otherwise, by the link between described second Ethernet switch and described first Ethernet switch, and first the link between Ethernet switch and the described upper level network, insert described upper level network.
7. the backup of communication system according to claim 6 and switch function implementation method is characterized in that, described upper level network is a Packet Data Network.
8. the backup of communication system according to claim 6 and switch function implementation method is characterized in that, described communication entity can be computer or server.
9. the backup of communication system according to claim 6 and switch function implementation method is characterized in that, described method also comprises step:
When described communication entity breaks down, start its spare communication entity and use communication entity as main, and execution in step A.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2004100767147A CN1741405A (en) | 2004-08-29 | 2004-08-29 | Communication system and method for realizing back-up and negation |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2004100767147A CN1741405A (en) | 2004-08-29 | 2004-08-29 | Communication system and method for realizing back-up and negation |
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| CN1741405A true CN1741405A (en) | 2006-03-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227371B (en) * | 2008-02-18 | 2011-06-22 | 中兴通讯股份有限公司 | Method and apparatus of backup switch among same level switch equipments |
| CN102237929A (en) * | 2011-07-15 | 2011-11-09 | 北京星网锐捷网络技术有限公司 | Equipment switching method, device and system based on fiber communication network |
| CN102546206A (en) * | 2010-12-22 | 2012-07-04 | 中兴通讯股份有限公司 | Ethernet port protection method and device |
| CN102891762A (en) * | 2011-07-20 | 2013-01-23 | 鸿富锦精密工业（深圳）有限公司 | System and method for continuously processing network data |
| CN111641569A (en) * | 2020-05-22 | 2020-09-08 | 杭州电力设备制造有限公司 | Transformer substation communication system |
-
2004
- 2004-08-29 CN CNA2004100767147A patent/CN1741405A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227371B (en) * | 2008-02-18 | 2011-06-22 | 中兴通讯股份有限公司 | Method and apparatus of backup switch among same level switch equipments |
| CN102546206A (en) * | 2010-12-22 | 2012-07-04 | 中兴通讯股份有限公司 | Ethernet port protection method and device |
| CN102237929A (en) * | 2011-07-15 | 2011-11-09 | 北京星网锐捷网络技术有限公司 | Equipment switching method, device and system based on fiber communication network |
| CN102891762A (en) * | 2011-07-20 | 2013-01-23 | 鸿富锦精密工业（深圳）有限公司 | System and method for continuously processing network data |
| CN102891762B (en) * | 2011-07-20 | 2016-05-04 | 赛恩倍吉科技顾问（深圳）有限公司 | The system and method for network data continuously |
| CN111641569A (en) * | 2020-05-22 | 2020-09-08 | 杭州电力设备制造有限公司 | Transformer substation communication system |
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