CN102204186A - Method for forwarding routing message and border device - Google Patents
Method for forwarding routing message and border device Download PDFInfo
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- CN102204186A CN102204186A CN2011800005809A CN201180000580A CN102204186A CN 102204186 A CN102204186 A CN 102204186A CN 2011800005809 A CN2011800005809 A CN 2011800005809A CN 201180000580 A CN201180000580 A CN 201180000580A CN 102204186 A CN102204186 A CN 102204186A
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- vlan
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
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- Computer Networks & Wireless Communication (AREA)
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- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention embodiment provides a method for forwarding routing message and a border device. The method comprises that: the border device confirms that within the self-configured VLAN, the MAC address of at least one local host device connected to the border device is learned; and the MAC routing message, preserved in ISIS link state database of the border device, learned from a distant border device, and corresponding to the VLAN, is forwarded to the MVRF of the border device. The invention embodiment can meet the demand of decreasing the volume of the MVRF of the border device and increase the extensibility of the MVRF of the border device, thereby saving MVRF resources.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of delivery method and edge device of routing iinformation.
Background technology
Transparent interconnected (the Transparent Interconnection of Lots of Links of multilink; Hereinafter to be referred as: be that a kind of use intermediate system is to intermediate system (Intermediate System to Intermediate System TRILL); Hereinafter to be referred as: ISIS) link-state routing protocol provides internet engineering task group (the Internet Engineering Task Force of two layers of bridge network function; Hereinafter to be referred as: IETF) standard agreement.
In the existing TRILL scheme, TRILL equipment, just routing bridge (Routing Bridge; Hereinafter to be referred as: RB) can spread medium access control (the Media Access Control of main frame by the ISIS link-state routing protocol; Hereinafter to be referred as: MAC) address reachability information, avoid a large amount of unknown unicast packet of broadcasting inundation in the TRILL network range, thereby can reduce of the negative effect of data inundation network performance.Used the tunnel encapsulation technology in the TRILL scheme, thereby made the TRILL nucleus equipment only need install to arrive the route of other RB to get final product, so the route forwarding table capacity requirement of TRILL nucleus equipment is lowered, do not have the route forwarding table scalability problem.But the TRILL edge device, promptly border routing bridge (edge RB) still needs to install all VLANs (the Virtual Local Area Network that is connected with this TRILL edge device; Hereinafter to be referred as: VLAN) the MAC routing iinformation of Nei main frame.In the large-scale data center, host number all reaches up to ten thousand even hundreds of thousands platform usually to millions of, and when using the big Layer 2 data central site network of TRILL technique construction, the TRILL edge device often faces the challenge of route forwarding table extensibility aspect.
But in the prior art, the extensibility of the route forwarding table of TRILL edge device is relatively poor, and has the problem of the route forwarding table wasting of resources.
Summary of the invention
The embodiment of the invention provides a kind of delivery method and edge device of routing iinformation, with the extensibility of the route forwarding table that improves edge device, saves the route forwarding table resource.
The embodiment of the invention provides a kind of delivery method of routing iinformation, comprising:
Learnt the medium access control address of at least one local host equipment of described edge device connection in the VLAN that edge device is determined self to dispose;
Described edge device with the intermediate system of described edge device preserve to the intermediate system LSD from far-end border learning equipment to the medium access control routing iinformation corresponding with described VLAN be issued to the route forwarding table of described edge device.
The present invention also provides a kind of edge device, comprising:
Determination module is used for determining whether having learnt in the VLAN of described edge device configuration the medium access control address of at least one the local host equipment that described edge device connects;
Issue module, be used in described determination module is determined the VLAN of described edge device configuration, having learnt after the medium access control address of at least one the local host equipment that described edge device connects, with the intermediate system of described edge device preserve to the intermediate system LSD from far-end border learning equipment to the medium access control routing iinformation corresponding with described VLAN be issued to the route forwarding table of described edge device.
Pass through the embodiment of the invention, in edge device is determined the VLAN of self configuration, learnt after the medium access control address of at least one the local host equipment that this edge device connects, this edge device preserve in just can ISIS LSD this edge device from far-end border learning equipment to the medium access control routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of this edge device.Thereby can reduce demand, improve the extensibility of the route forwarding table of edge device, and then can save the route forwarding table resource edge device route forwarding table capacity.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of an embodiment of delivery method of routing iinformation of the present invention;
Fig. 2 is the schematic diagram of an embodiment of application scenarios of the present invention;
Fig. 3 is the flow chart of another embodiment of delivery method of routing iinformation of the present invention;
Fig. 4 is the structural representation of an embodiment of edge device of the present invention;
Fig. 5 is the structural representation of another embodiment of edge device of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Fig. 1 is the flow chart of an embodiment of delivery method of routing iinformation of the present invention, and as shown in Figure 1, the delivery method of this routing iinformation can comprise:
Wherein, the ISIS LSD is a topology information base, and the routing iinformation in the route forwarding table is to calculate according to the topology information in the ISIS LSD.
In the foregoing description, in edge device is determined the VLAN of self configuration, learnt after the MAC Address of at least one the local host equipment that this edge device connects, this edge device preserve in just can ISIS LSD this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of this edge device.Thereby can reduce demand, improve the extensibility of the route forwarding table of edge device, and then can save the route forwarding table resource edge device route forwarding table capacity.
Fig. 2 is the schematic diagram of an embodiment of application scenarios of the present invention, the delivery method of the present invention's routing iinformation that provides embodiment illustrated in fig. 1 can be applied in the scene shown in Figure 2, with the TRILL network is example, as shown in Figure 2, comprise nucleus equipment 3, nucleus equipment 4 and nucleus equipment 5 in the TRILL network, and edge device 1 and edge device 2; At least one local host equipment that edge device 1 connects comprises host A, host B and host C, and at least one local host equipment that edge device 2 connects comprises main frame D, main frame E and main frame F; The VLAN of edge device 1 among Fig. 2 and edge device 2 configurations is VLAN 10.
In the present embodiment, for edge device 1, edge device 2 is the far-end edge device of edge device 1, after the VLAN 10 of edge device 1 configuration learnt in host A, host B and the host C MAC Address of at least one, what edge device 1 was preserved in just can the ISIS LSD with this edge device 1 was issued to the route forwarding table of edge device 1 from the edge device 2 MAC routing iinformation corresponding with VLAN 10 that learn.In addition, after the VLAN 10 of edge device 1 configuration learnt in host A, host B and the host C MAC Address of at least one, the MAC routing iinformation corresponding with VLAN 10 that edge device 1 is learnt this edge device 1 this locality automatically was issued to the route forwarding table of edge device 1.
In the present embodiment, the route forwarding table of edge device 1 can be as shown in table 1.
In the table 1, MAC A, MAC B and MAC C are respectively the MAC Address of host A, host B and host C, and MAC D, MAC E and MAC F are respectively main frame D, main frame E and main frame
Table 1
The MAC Address of F.Wherein, the MAC routing iinformation corresponding with VLAN 10 that learn this locality is the information in table 1 the 2nd row, is information table 1 the 3rd row from the edge device 2 MAC routing iinformation corresponding with VLAN 10 that learn.
Certainly, application scenarios shown in Figure 2 only is an example of application scenarios of the present invention, does not constitute limitation of the invention.
Fig. 3 is the flow chart of another embodiment of delivery method of routing iinformation of the present invention, and as shown in Figure 3, the delivery method of this routing iinformation can comprise:
301, the VLAN of edge device monitoring self configuration is to the study situation of the MAC Address of the local host equipment of this edge device connection.
302, edge device determines whether to learn in the VLAN of self configuration the MAC Address of at least one the local host equipment that this edge device connects.
If learn, then carry out 303; If do not learn the MAC Address of any one local host equipment of this edge device connection in the VLAN that edge device is determined self to dispose, then carry out 304.
303, preserve in the ISIS LSD of edge device with this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of above-mentioned edge device.
Referring to Fig. 2 and table 1, with edge device 1 is example, and VLAN that learn from far-end edge device (edge device 2) and edge device 1 configuration the 10 corresponding MAC routing iinformations of preserving in the ISIS LSD of edge device 1 are the information table 1 the 3rd row.
304, edge device do not preserve in the ISIS LSD with this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of above-mentioned edge device.
In the present embodiment, in determining the VLAN of self configuration, do not learn edge device after the MAC Address of any one the local host equipment that this edge device connects, except that preserve in the ISIS LSD not this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of above-mentioned edge device, this edge device can also with existed in the route forwarding table from far-end border learning equipment to the MAC routing iinformation deletion corresponding with this VLAN.
In addition, in the present embodiment, after the VLAN of edge device configuration learnt the MAC Address of at least one the local host equipment that this edge device connects, the MAC routing iinformation corresponding with above-mentioned VLAN that this edge device is learnt this edge device this locality automatically was issued to the route forwarding table of this edge device.Referring to Fig. 2 and table 1, be example with edge device 1, the MAC routing iinformation corresponding with VLAN10 that learn edge device 1 this locality is the information in table 1 the 2nd row.
With the TRILL edge device is example, if the TRILL edge device (for example: the MAC Address of at least one the local host equipment that connects of this TRILL edge device not in Pei Zhi the VLAN 10 edge device 1 among Fig. 2), that is to say, VLAN 10 does not also find any one local host equipment that this TRILL edge device connects, so this TRILL edge device just do not need to preserve in the ISIS LSD with this TRILL edge device (for example: the MAC routing iinformation of the edge device 2 Fig. 2) learning corresponding with VLAN 10 is issued to the route forwarding table of this TRILL edge device from the far-end edge device; Otherwise, if the MAC Address of at least one the local host equipment that existing this TRILL edge device connects in the VLAN 10 of TRILL edge device configuration, that is to say, VLAN 10 has found at least one local host equipment that this TRILL edge device connects, so this TRILL edge device just need to preserve in the ISIS LSD with this TRILL edge device from far-end border learning equipment to the MAC routing iinformation corresponding with VLAN 10 be issued to the route forwarding table of this TRILL edge device.
Wherein, preserve in the ISIS LSD of this TRILL edge device from far-end border learning equipment to the MAC routing iinformation corresponding with VLAN 10 send to this TRILL edge device by far-end TRILL edge device.
The foregoing description can reduce the demand to edge device route forwarding table capacity, improves the extensibility of the route forwarding table of edge device, and then can save the route forwarding table resource.
Need to prove that the delivery method of the routing iinformation that the embodiment of the invention provides not only goes for the TRILL agreement, be applicable to that also stack transmits virtual (Overlay Transport Virtualization; Hereinafter to be referred as: OTV) or shortest path bridge (Shortest Path Bridge; Hereinafter to be referred as: SPB) etc. use ISIS spreads layer 2 (L2) project of network technique of main frame MAC reachability information.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 4 is the structural representation of an embodiment of edge device of the present invention, and the edge device in the present embodiment can be realized the flow process that the present invention is embodiment illustrated in fig. 1, and as shown in Figure 4, this edge device can comprise:
In the foregoing description, determination module 41 is determined to have learnt in the VLAN of self configuration after the MAC Address of at least one the local host equipment that this edge device connects, issue that module 42 preserves in just can the ISIS LSD with this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of this edge device.Thereby can reduce demand, improve the extensibility of the route forwarding table of edge device, and then can save the route forwarding table resource edge device route forwarding table capacity.
Fig. 5 is the structural representation of another embodiment of edge device of the present invention, and the edge device in the present embodiment can be realized Fig. 1 of the present invention and flow process embodiment illustrated in fig. 3.
For instance, in the present embodiment, issue module 42 and in determination module 41 is determined the VLAN of edge devices configuration, do not learn after the MAC Address of any one the local host equipment that above-mentioned edge device connects, do not preserve in the ISIS LSD with this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of this edge device.
For instance, further, this edge device can also comprise, removing module 43, be used in determination module 41 is determined the VLAN of this edge devices configuration, not learning after the MAC Address of any one the local host equipment that this edge device connects, existed in the route forwarding table with this edge device from far-end border learning equipment to the MAC routing iinformation deletion corresponding with VLAN.
For instance, further, this edge device can also comprise, monitoring modular 44, be used to monitor the study situation of the MAC Address of the local host equipment that in the VLAN of this edge device configuration above-mentioned edge device is connected, determine whether to have learnt in the VLAN of edge device configuration the MAC Address of at least one the local host equipment that above-mentioned edge device connects for determination module 41 according to this study situation.
For instance, in determination module 41 is determined the VLAN of this edge devices configuration, do not learn in the present embodiment after the MAC Address of any one the local host equipment that this edge device connects, this edge device do not preserve in the ISIS LSD with this edge device from far-end border learning equipment to the MAC routing iinformation corresponding with above-mentioned VLAN be issued to the route forwarding table of this edge device.
Above-mentioned edge device can reduce the demand to edge device route forwarding table capacity, improves the extensibility of the route forwarding table of edge device, and then can save the route forwarding table resource.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. the delivery method of a routing iinformation is characterized in that, comprising:
Learnt the medium access control address of at least one local host equipment of described edge device connection in the VLAN that edge device is determined self to dispose;
Described edge device with the intermediate system of described edge device preserve to the intermediate system LSD from far-end border learning equipment to the medium access control routing iinformation corresponding with described VLAN be issued to the route forwarding table of described edge device.
2. method according to claim 1 is characterized in that, also comprises:
If described edge device determines not learn in the VLAN of self configuration the medium access control address of any one the local host equipment that described edge device connects, then the intermediate system of described edge device is not preserved to the intermediate system LSD from far-end border learning equipment to the medium access control routing iinformation corresponding with described VLAN be issued to the route forwarding table of described edge device.
3. method according to claim 1 and 2 is characterized in that, also comprises:
If described edge device determines not learn in the VLAN of self configuration the medium access control address of any one the local host equipment that described edge device connects, existed in the route forwarding table of then described edge device with described edge device from far-end border learning equipment to the medium access control routing iinformation deletion corresponding with described VLAN.
4. method according to claim 1 and 2 is characterized in that, described edge device is determined to have learnt in the VLAN of self configuration also to comprise before the medium access control address of at least one the local host equipment that described edge device connects:
The study situation of the medium access control address of the local host equipment that the VLAN of described edge device monitoring self configuration connects described edge device determines to have learnt in the VLAN of self configuration the medium access control address of at least one the local host equipment that described edge device connects according to described study situation for described edge device.
5. an edge device is characterized in that, comprising:
Determination module is used for determining whether having learnt in the VLAN of described edge device configuration the medium access control address of at least one the local host equipment that described edge device connects;
Issue module, be used in described determination module is determined the VLAN of described edge device configuration, having learnt after the medium access control address of at least one the local host equipment that described edge device connects, with the intermediate system of described edge device preserve to the intermediate system LSD from far-end border learning equipment to the medium access control routing iinformation corresponding with described VLAN be issued to the route forwarding table of described edge device.
6. edge device according to claim 5 is characterized in that,
The described module that issues is not learnt in described determination module is determined the VLAN of described edge device configuration after the medium access control address of any one the local host equipment that described edge device connects, the intermediate system of described edge device is not preserved to the intermediate system LSD from far-end border learning equipment to the medium access control routing iinformation corresponding with described VLAN be issued to the route forwarding table of described edge device.
7. according to claim 5 or 6 described edge devices, it is characterized in that, also comprise:
Removing module, be used in described determination module is determined the VLAN of described edge device configuration, not learning after the medium access control address of any one the local host equipment that described edge device connects, existed in the route forwarding table with described edge device from far-end border learning equipment to the medium access control routing iinformation deletion corresponding with described VLAN.
8. according to claim 5 or 6 described edge devices, it is characterized in that, also comprise:
Monitoring modular, the study situation of the medium access control address of the local host equipment that the VLAN that is used to monitor described edge device configuration connects described edge device determines whether to have learnt in the VLAN of described edge device configuration the medium access control address of at least one the local host equipment that described edge device connects according to described study situation for described determination module.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/074336 WO2011144042A2 (en) | 2011-05-19 | 2011-05-19 | Method and edge device for delivering route information |
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| CN102204186A true CN102204186A (en) | 2011-09-28 |
| CN102204186B CN102204186B (en) | 2013-08-14 |
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| CN201180000580.9A Active CN102204186B (en) | 2011-05-19 | 2011-05-19 | Method for forwarding routing message and border device |
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| WO (1) | WO2011144042A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102857415A (en) * | 2012-09-13 | 2013-01-02 | 华为技术有限公司 | Routing bridge and device and method for controlling media access control address study |
| WO2014071811A1 (en) * | 2012-11-07 | 2014-05-15 | 华为技术有限公司 | Construction method, node and system of trill network |
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| CN101394341A (en) * | 2007-09-17 | 2009-03-25 | 华为技术有限公司 | Route maintaining method, system and apparatus |
| CN101442467A (en) * | 2007-11-23 | 2009-05-27 | 上海贝尔阿尔卡特股份有限公司 | Method for providing multipoint to multipoint connection in network based on operator backbone network transmission |
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- 2011-05-19 WO PCT/CN2011/074336 patent/WO2011144042A2/en active Application Filing
- 2011-05-19 CN CN201180000580.9A patent/CN102204186B/en active Active
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| US20080175254A1 (en) * | 2007-01-22 | 2008-07-24 | Alpha Nerworks Inc. | Method of learning address in Virtual LAN system |
| CN101394341A (en) * | 2007-09-17 | 2009-03-25 | 华为技术有限公司 | Route maintaining method, system and apparatus |
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| CN102857415A (en) * | 2012-09-13 | 2013-01-02 | 华为技术有限公司 | Routing bridge and device and method for controlling media access control address study |
| CN102857415B (en) * | 2012-09-13 | 2015-04-22 | 华为技术有限公司 | Routing bridge and device and method for controlling media access control address study |
| WO2014071811A1 (en) * | 2012-11-07 | 2014-05-15 | 华为技术有限公司 | Construction method, node and system of trill network |
| US10084656B2 (en) | 2012-11-07 | 2018-09-25 | Huawei Technologies Co., Ltd. | TRILL network establishing method, node, and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011144042A2 (en) | 2011-11-24 |
| CN102204186B (en) | 2013-08-14 |
| WO2011144042A3 (en) | 2012-04-19 |
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