CN104092605A - Routers for forming virtue routing device in stacking mode and virtue routing device - Google Patents
Routers for forming virtue routing device in stacking mode and virtue routing device Download PDFInfo
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- CN104092605A CN104092605A CN201410335022.3A CN201410335022A CN104092605A CN 104092605 A CN104092605 A CN 104092605A CN 201410335022 A CN201410335022 A CN 201410335022A CN 104092605 A CN104092605 A CN 104092605A
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Abstract
The invention discloses routers for forming a virtue routing device in a stacking mode and the virtue routing device. Stacking of the routers can be achieved by means of serial connection of memory interconnection networks of the routers, therefore, memory resources in the stacked routers are fused in the virtue routing device, and interworking of kernel resource pools of the stacked router is achieved through the memory interconnection networks fused into a whole. In addition, an available management kernel is configured to one of the stacked routers only, not to every router, so that integral fusion of the interworked kernel resource pools of the stacked routers is achieved in the virtue routing device.
Description
Technical field
The present invention relates to Stack Technology, particularly a kind of router for the virtual routing device of stacking formation and this virtual routing device.
Background technology
In the prior art, many routers can be realized by Ethernet exchanging mutually stacking and by stacking and logically form a virtual routing device.But in the virtual routing device of stacking formation, it is individual and do not realize mutual fusion that many routers are still separately independently operation, this has just caused occurrence of a problem:
1, for the ease of many routers of independent operating are separately carried out to resource management, prior art has to adopt the integration software architecture taking virtual routing device as carrying main body, but, at present ripe router correlation function is all to depend on taking separate unit router independently as the individuation software architecture of carrying main body to realize, if desired at these ripe correlation functions of virtual route route implementing, can only be by transplanting to realize to the software function of integration software architecture from individuation software architecture, and the construction cycle that software function is transplanted is very long, thereby limit the function of virtual routing device.
2, in the time of router independently and virtual routing device mixed networking, between the integration software architecture that the individuation software architecture that independently router adopts and virtual routing device adopt, certainly will there is many difference, when this just makes mixed networking, administer and maintain that difficulty is large, cost is high.
3, many routers in virtual routing device are for independently operation is individual separately, and therefore, coordination between these operation individualities, the factor such as mutual will affect stability and the reliability of virtual routing device.
Summary of the invention
In view of this, the invention provides a kind of router for the virtual routing device of stacking formation and this virtual routing device, can realize the Resource Fusion between each stacking router.
A kind of router for the virtual routing device of stacking formation provided by the invention, this router comprises the stacking LI(link interface) of internal memory, polycaryon processor and serial, wherein:
In polycaryon processor, there is nuclear resource pond, the internal memory interference networks that connect internal memory that comprise multiple vouching unit and the serial deserializer that connects internal memory interference networks;
The stacking LI(link interface) of serial connects internal memory interference networks by serial deserializer, for by being connected and realizing the stacking of this router and other router with the stacking LI(link interface) of serial of other router;
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, the nuclear resource pond of the polycaryon processor of this router provides management core and business core for virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the nuclear resource pond of the polycaryon processor of this router provides business core for virtual routing device.
Preferably, this router further comprises management port and service port, and in polycaryon processor, further has the I/O network of connection management port and service port;
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, this router provides management port and service port for virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, this router provides service port and management port is given over to the management port for subsequent use of virtual routing device for virtual routing device.
Preferably:
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, all business cores of the management core configuration virtual routing device that this router provides for virtual routing device are from this router loading procedure;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the business core that this router provides for virtual routing device is preferentially from active router loading procedure.
Preferably:
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, the internal memory of this router is for all business core priority access of virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the business core that this router provides for virtual routing device is configured to the internal memory of the active router in the virtual routing device of priority access;
Or,
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, all business core priority access of internal memory the machine of this router;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the business core that this router provides for virtual routing device is configured to the internal memory of priority access the machine.
Preferably:
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, a vouching unit in the nuclear resource pond of the polycaryon processor of this router is configured to the management core of virtual routing device, the business core that all the other vouching units are configured to virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, all vouchings unit in the nuclear resource pond of the polycaryon processor of this router is configured to the business core of virtual routing device, or a vouching unit in the nuclear resource pond of the polycaryon processor of this router is configured to the management core for subsequent use of virtual routing device, the business core that all the other vouching units are configured to virtual routing device.
Preferably, in the polycaryon processor of this router, further there is the quick distribution module of message, be balancedly distributed to all business cores of virtual routing device for the message that the service port of this router is received.
Preferably, in the polycaryon processor of this router, further there is encrypting and decrypting module, Compress softwares module and message depth detection module, call for any business core that is virtualized routing device.
The virtual routing device of one provided by the invention, comprises at least two stacking routers mutually, and every router comprises the stacking LI(link interface) of internal memory, polycaryon processor and serial;
Wherein, in polycaryon processor, there is nuclear resource pond, the internal memory interference networks that connect internal memory that comprise multiple vouching unit and the serial deserializer that connects internal memory interference networks; The stacking LI(link interface) of serial connects internal memory interference networks by serial deserializer, for by being connected and realizing the stacking of this router and other router with the stacking LI(link interface) of serial of other router;
And, at least two described routers one as active router, all the other are as secondary router, the management core of virtual routing device by active router provide, business core provides jointly by active router and secondary router.
Preferably, every router further comprises management port and service port, and in the polycaryon processor of every router, further has the I/O network of connection management port and service port;
The management port of virtual routing device by active router provide, service port provides jointly by active router and secondary router, and the management port of secondary router gives over to the management port for subsequent use of virtual routing device.
Preferably, active router is set to all business caryogamy of virtual routing device preferentially from active router loading procedure for the management core that virtual routing device provides.
Preferably, the internal memory of all business core priority access active routers of virtual routing device, or, the internal memory of the router at its affiliated polycaryon processor place of each business core priority access of virtual routing device.
Preferably:
A vouching unit in the nuclear resource pond of the polycaryon processor of active router is configured to the management core of virtual routing device, the business core that all the other vouching units are configured to virtual routing device;
All vouchings unit in the nuclear resource pond of the polycaryon processor of secondary router is configured to the business core of virtual routing device, or a vouching unit in the nuclear resource pond of the polycaryon processor of secondary router is configured to the management core for subsequent use of virtual routing device, the business core that all the other vouching units are configured to virtual routing device.
Preferably, in the polycaryon processor of active router and secondary router, all further there is the quick distribution module of message, be balancedly distributed to all business cores of virtual routing device for the message that the service port of this router is received.
Preferably, in the polycaryon processor of active router and secondary router, all further there is encrypting and decrypting module, Compress softwares module and message depth detection module, call for any business core that is virtualized routing device.
As can be seen here, in the present invention, stacking between router can pass through the realization connected in series between the internal memory interference networks of each router, thereby, the fusion of the memory source of having realized each stacking router in virtual routing device, and then, make each stacking router realize the intercommunication in nuclear resource pond by the internal memory Internet combining together; And, in each stacking router, only have one to dispose available management core instead of every equal configuration management core of router, thereby integral fusion is realized in the nuclear resource pond that each stacking router communicates with each other in virtual routing device.
Brief description of the drawings
Fig. 1 is the example arrangement schematic diagram of the virtual routing device that formed by router overlapping in the embodiment of the present invention;
Fig. 2 is the schematic diagram of the preferred connected mode between many routers of stacking formation virtual routing device as shown in Figure 1;
Fig. 3 is the example logic schematic diagram of realizing Resource Fusion in virtual routing device as shown in Figure 1;
Fig. 4 is the schematic diagram of the preferable procedure load mode in virtual routing device as shown in Figure 1;
Fig. 5 a and Fig. 5 b are the schematic diagram of the preferred internal storage access mode in virtual routing device as shown in Figure 1;
Fig. 6 is the exemplary extended structural representation that has increased the quick distribution mechanisms of message in virtual routing device as shown in Figure 1;
Fig. 7 is the exemplary extended structural representation that has increased COM Continuation of Message treatment mechanism in virtual routing device as shown in Figure 1;
Fig. 8 possesses the example logic schematic diagram of realizing Resource Fusion in the virtual routing device of the quick distribution mechanisms of message as shown in Figure 6 and COM Continuation of Message treatment mechanism as shown in Figure 7.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The embodiment of the present invention, for fear of each the router deficiency that independent operating causes separately due to stacking, is intended to realize the Resource Fusion of each stacking router in virtual routing device.
Fig. 1 shows the virtual routing device being formed by two router overlappings, and every router wherein comprises the stacking LI(link interface) of polycaryon processor, management port and service port, internal memory and serial.
Refer to Fig. 1, in polycaryon processor, have the nuclear resource pond, connection management port and the service port that comprise multiple Core (vouching unit) I/O network, connect internal memory internal memory interference networks, be connected to internal memory between I/O network and internal memory interference networks and I/O bridge and be connected the SERDES (SERializer/DESerializer of internal memory interference networks, serial deserializer), in addition, in polycaryon processor, can also there is many buffer memorys, shown in Figure 1 for the purpose of simplifying the description and not herein;
And the stacking LI(link interface) of serial connects internal memory interference networks by SERDES, for by being connected and realizing the stacking of this router and other router with the stacking LI(link interface) of serial of other router.It should be noted that, in Fig. 1, be only to form virtual routing device as example taking two router overlappings, in practical application, also can be by forming virtual routing device more than two router overlappings, now, the stacking LI(link interface) of serial of many routers can adopt as shown in Figure 2 form the totally interconnected mode of virtual routing device as example taking three router overlappings, or adopt the such as cascade mode such as snakelike, annular, but no matter adopt the interconnection mode of which kind of topological form, can realize stacking between router.
That is to say, regardless of the quantity of the router of the virtual routing device of stacking formation, the stacking realization connected in series that can pass through low time delay between the internal memory interference networks of router between each router, thereby, the fusion of the memory source of having realized each stacking router in virtual routing device, and then, make each stacking router realize the intercommunication in nuclear resource pond by the internal memory Internet combining together.
Please again referring to Fig. 1, in virtual routing device, have a router as active router, remaining is as secondary router, active router and secondary router can complete by the dynamic election between static configuration or router in advance, as for how realizing such static configuration or dynamically election, can be achieved with reference to prior art, repeat no more herein.When active router occurs when abnormal, secondary router can be taken over the role of active router, wherein, for the situation that forms virtual routing device more than two router overlappings, secondary router also can be more than one, now, and can be to ranking compositor being set more than a secondary router, when active router occurs when abnormal, taken over the role of active router by a highest secondary router of current ranking compositor.
For virtual routing device, its management core by the nuclear resource pond of active router provide, business core provides jointly by the nuclear resource pond of active router and secondary router, and, the management port of virtual routing device by active router provide, service port provides jointly by active router and secondary router.Wherein, in nuclear resource pond with active router in Fig. 1, represent management core with hatched Core, in the nuclear resource pond of active router and secondary router, be not with hatched all the other Core to represent business core, and, in Fig. 1, be to be only configured to management core with a Core of active router, it is example that every other Core in active router and secondary router is all configured to business core, but in practical application, except a Core of active router is configured to management core, a Core of secondary router also can be configured to management core for subsequent use, and then the every other Core except management core and management core for subsequent use in active router and secondary router is configured to business core, so that secondary router can be taken over as early as possible and abnormal active router occurs provide management core for virtual routing device.
That is to say, regardless of the quantity of the router of the virtual routing device of stacking formation, in virtual routing device, only have an active router dispose available management core and be correspondingly equipped with available management interface instead of every router all to configure available management core and available management interface, thereby, virtual router forms resource pool according to the configuration frame of " management core, multi-service core " identical with separate unit router, makes the nuclear resource pond communicating with each other between stacking router realize integral fusion in virtual routing device.
Thus, Core in the polycaryon processor of every router of the virtual routing device of stacking formation can both access by the internal memory interference networks equality of intercommunication between each router the resource (at least comprising program, internal memory, interface etc.) of other routers, make all resources in virtual routing device realize integral fusion, as shown in Figure 3.
Based on above-mentioned Resource Fusion, the scheme in the present embodiment can produce following beneficial effect than prior art:
1, only need to improve applicable to virtual router on a small quantity taking separate unit router independently as the individuation software architecture of carrying main body, therefore, the ripe router correlation function of realizing based on individuation software architecture can be realized at virtual router without integral transplanting, thereby has reduced the limit of functions of software architecture difference to virtual router.
2, in the time of router independently and virtual router mixed networking, independently router can adopt similar software architecture with virtual router, thereby administers and maintains difficulty and cost while having reduced mixed networking.
3, many routers in virtual router do not relate to the coordination of operation between individuality, the factor such as mutual, thereby can effectively ensure stability and the reliability of virtual router.
It should be noted that, the resource that the Core of every router can both equality accesses other routers refers to the equality of access rights and access performance, instead of refers to balancedly to access the resource of each router.
For example, refer to Fig. 4, in order to realize compatible better fusion, in each router in virtual routing device, can unify to record program (as bios program, application program) operation and nonessential from respectively loading procedure of the machine from active router, correspondingly, the program in secondary router can be as backup, to load for other secondary routers after secondary router is promoted as active router., active router is set to all business caryogamy of virtual routing device preferentially from active router loading procedure for the management core that virtual routing device provides.Because the Core of every router can both equality accesses the resource of other routers, therefore, no matter the Core that is configured to be configured in the Core of business core or secondary router business core in active router, can both be as realize the program loading procedure from active router from the machine loading procedure.
Again for example, refer to Fig. 5 a, in internal memory, need to store a large amount of information, transmit as various, statistical information, packet buffer, user journal etc., in order to reduce internal memory cost, all business cores of virtual routing device all can priority access active router internal memory, the internal memory of secondary router can as backup, with after secondary router is promoted as active router for other secondary router access.
Certainly, refer to Fig. 5 b, each business core of virtual routing device also can priority access the internal memory in the router at polycaryon processor place under it, that is, realize local first principle.
In practical application, can select arbitrarily according to the actual disposition situation of internal memory and the user demand to memory source the one in two kinds of modes as shown in Fig. 5 a and Fig. 5 b; The preferred DIMM of internal memory (Dual Inline Memory Module, dual inline memory module) is so that flexible configuration.In addition, for forwarding and the processing of message, above-mentioned equality is accessed and also can be used for realizing load balancing.
For example, refer to Fig. 6, the quick distribution module of message all can be further set in the polycaryon processor of active router and secondary router, balancedly be distributed to all business cores of virtual routing device for the message that the service port of the router at its place is received.For example, in the time that message reaches, the quick distribution module of message can be according to the idle condition of all business cores, according to the principle of fair poll by a message of message be delivered to these Business Processing cores, message payload stores in internal memory and (can preferentially leave in the internal memory of active router).In practical application, the quick distribution module of message can be realized by the programmable hardware resource in polycaryon processor, or, also can bear message distribution by a Core in nuclear resource pond, select the handling property that can reduce polycaryon processor using Core as the mode of the quick distribution module of message.
That is to say, because the Core in the polycaryon processor of every router can both access by the internal memory interference networks equality of intercommunication between each router the interface resource of other routers, thereby can make load balancing between business core that message that the business interface of virtual routing device is received provides at each router by the quick distribution module of message.
For example, refer to Fig. 7, in the polycaryon processor of active router and secondary router, all can further there is encrypting and decrypting module, Compress softwares module and message depth detection (Deep Packet Inspection) module, call for any business core that is virtualized routing device, the message payload being stored in internal memory can carry out the corresponding operation of processing by encrypting and decrypting module, Compress softwares module and message depth detection module.In practical application, encrypting and decrypting module, Compress softwares module and message depth detection module preferably can be realized by the programmable hardware resource in polycaryon processor.
That is to say, because the Core in the polycaryon processor of every router can both access by the internal memory interference networks equality of intercommunication between each router the memory source of other routers, thereby encrypting and decrypting module, Compress softwares module and message depth detection module that the message payload of depositing in internal memory can be shared in each router are processed.
In addition, the quick distribution module of above-mentioned message, encrypting and decrypting module, Compress softwares module and message depth detection module in fact also belong to Fused resource, refer to Fig. 8.
Resource Fusion based on the present embodiment in virtual routing device, if every router has 4 Core, 1 quick distribution module of message, 1 encrypting and decrypting module, 1 Compress softwares module, and 1 message depth detection module, the virtual routing device being formed by N platform (N is more than or equal to 2 positive integer) router overlapping just can have 2N-1 and be configured to business core, N the quick distribution module of message, N encrypting and decrypting module, N Compress softwares module, and N message depth detection module, thereby realize the resource capacity expansion identical with separate unit router architectures based on Resource Fusion.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (14)
1. for a router for the virtual routing device of stacking formation, it is characterized in that, this router comprises the stacking LI(link interface) of internal memory, polycaryon processor and serial, wherein:
In polycaryon processor, there is nuclear resource pond, the internal memory interference networks that connect internal memory that comprise multiple vouching unit and the serial deserializer that connects internal memory interference networks;
The stacking LI(link interface) of serial connects internal memory interference networks by serial deserializer, for by being connected and realizing the stacking of this router and other router with the stacking LI(link interface) of serial of other router;
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, the nuclear resource pond of the polycaryon processor of this router provides management core and business core for virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the nuclear resource pond of the polycaryon processor of this router provides business core for virtual routing device.
2. router according to claim 1, is characterized in that, this router further comprises management port and service port, and in polycaryon processor, further has the I/O network of connection management port and service port;
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, this router provides management port and service port for virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, this router provides service port and management port is given over to the management port for subsequent use of virtual routing device for virtual routing device.
3. router according to claim 1, is characterized in that,
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, all business cores of the management core configuration virtual routing device that this router provides for virtual routing device are from this router loading procedure;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the business core that this router provides for virtual routing device is preferentially from active router loading procedure.
4. router according to claim 1, is characterized in that,
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, the internal memory of this router is for all business core priority access of virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the business core that this router provides for virtual routing device is configured to the internal memory of the active router in the virtual routing device of priority access;
Or,
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, all business core priority access of internal memory the machine of this router;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, the business core that this router provides for virtual routing device is configured to the internal memory of priority access the machine.
5. router according to claim 1, is characterized in that,
During when this router and other router overlapping and as active router in the virtual routing device of stacking formation, a vouching unit in the nuclear resource pond of the polycaryon processor of this router is configured to the management core of virtual routing device, the business core that all the other vouching units are configured to virtual routing device;
During when this router and other router overlapping and as secondary router in the virtual routing device of stacking formation, all vouchings unit in the nuclear resource pond of the polycaryon processor of this router is configured to the business core of virtual routing device, or a vouching unit in the nuclear resource pond of the polycaryon processor of this router is configured to the management core for subsequent use of virtual routing device, the business core that all the other vouching units are configured to virtual routing device.
6. router according to claim 1, it is characterized in that, in the polycaryon processor of this router, further there is the quick distribution module of message, be balancedly distributed to all business cores of virtual routing device for the message that the service port of this router is received.
7. router according to claim 1, it is characterized in that, in the polycaryon processor of this router, further there is encrypting and decrypting module, Compress softwares module and message depth detection module, call for any business core that is virtualized routing device.
8. a virtual routing device, is characterized in that, comprises at least two stacking routers mutually, and every router comprises the stacking LI(link interface) of internal memory, polycaryon processor and serial;
Wherein, in polycaryon processor, there is nuclear resource pond, the internal memory interference networks that connect internal memory that comprise multiple vouching unit and the serial deserializer that connects internal memory interference networks; The stacking LI(link interface) of serial connects internal memory interference networks by serial deserializer, for by being connected and realizing the stacking of this router and other router with the stacking LI(link interface) of serial of other router;
And, at least two described routers one as active router, all the other are as secondary router, the management core of virtual routing device by active router provide, business core provides jointly by active router and secondary router.
9. virtual routing device according to claim 8, is characterized in that, every router further comprises management port and service port, and in the polycaryon processor of every router, further has the I/O network of connection management port and service port;
The management port of virtual routing device by active router provide, service port provides jointly by active router and secondary router, and the management port of secondary router gives over to the management port for subsequent use of virtual routing device.
10. virtual routing device according to claim 8, is characterized in that, active router is set to all business caryogamy of virtual routing device preferentially from active router loading procedure for the management core that virtual routing device provides.
11. virtual routing devices according to claim 8, it is characterized in that, the internal memory of all business core priority access active routers of virtual routing device, or, the internal memory of the router at its affiliated polycaryon processor place of each business core priority access of virtual routing device.
12. virtual routing devices according to claim 8, is characterized in that,
A vouching unit in the nuclear resource pond of the polycaryon processor of active router is configured to the management core of virtual routing device, the business core that all the other vouching units are configured to virtual routing device;
All vouchings unit in the nuclear resource pond of the polycaryon processor of secondary router is configured to the business core of virtual routing device, or a vouching unit in the nuclear resource pond of the polycaryon processor of secondary router is configured to the management core for subsequent use of virtual routing device, the business core that all the other vouching units are configured to virtual routing device.
13. virtual routing devices according to claim 8, it is characterized in that, in the polycaryon processor of active router and secondary router, all further there is the quick distribution module of message, be balancedly distributed to all business cores of virtual routing device for the message that the service port of this router is received.
14. virtual routing devices according to claim 8, it is characterized in that, in the polycaryon processor of active router and secondary router, all further there is encrypting and decrypting module, Compress softwares module and message depth detection module, call for any business core that is virtualized routing device.
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