CN1897596A - Method and system for controlling access address by virtual medium in Ethernet - Google Patents
Method and system for controlling access address by virtual medium in Ethernet Download PDFInfo
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- CN1897596A CN1897596A CNA2006100574105A CN200610057410A CN1897596A CN 1897596 A CN1897596 A CN 1897596A CN A2006100574105 A CNA2006100574105 A CN A2006100574105A CN 200610057410 A CN200610057410 A CN 200610057410A CN 1897596 A CN1897596 A CN 1897596A
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- 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
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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Abstract
The method thereof comprises: the virtual MAC is used to configure the service tunnel in the MAC-in- Mac networking. By the invention, when the port data of PE device of PBT tunnel varies, there is no need to reconfigure the forwarding list item on the exchanger of PBT tunnel and on the equipment of other service provider.
Description
Technical field
The present invention relates to field of network communication, relate in particular to a kind of method and system that in Ethernet is used, uses virtual MAC (media interviews control) address.
Background technology
Mac-in-Mac is the key technology of the PBB (Provider Backbone Bridges, provider backbone bridging) that provides of IEEE (IEEE) 802.1ah draft.Mac-in-Mac is a kind of Ethernet application scheme, by mode at the outer outer MAC of interpolation of client's ethernet frame (media interviews control) head and srvice instance ID, client's Ethernet and operator's Ethernet are kept apart, thereby can solve in the past because Ethernet is used a series of problems that do not have level to cause.
IEEE 802.1ag has proposed PBT (Provider Backbone Transport, provider backbone transmission) scheme.The PBT scheme is set up the tunnel by configuration mode, closes mac learning and multicast functionality, simplifies networking, satisfies point-to-point and uses.
In traditional IP network,, use VRRP (Virtual Router Redundacy Protocol) agreement to come networking sometimes in order to improve up link/reliability of nodes.VRRP is organized into a virtual router with the set of router of local area network (LAN).This virtual router also is referred to as a backup group, comprises a MASTER (main using) router and several BACKUP (backup) router, has IP address and the virtual mac address of oneself.Main frame in the network just comes to communicate with other network by this virtual router.When if the MASTER router in the backup group breaks down, other BACKUP router in the backup group will be taken over and become new MASTER, and the main frame that continues in network provides route service.In the VRRP agreement, downstream plant relearned ARP (address resolution protocol) when the application of virtual mac address had avoided network to switch.
A kind of method of carrying out the message transmission in Ethernet is in the prior art: at local end PE (Provider Edge Device, provider edge equipment) hop-by-hop configuration MAC+VLAN (VLAN) and on the Ethernet tunnel between the PE of opposite end, distinguish different tunnels by different VLAN or MAC, trigger switching of tunnel by 802.1ag, but the process of switching also there is not textual description.
In application shown in Figure 1 in the PBT networking schematic diagram in tunnel of Mac-in-Mac, client's message is through Metro Ethernet and opposite end client's intercommunication.After two layers of Ethernet message that the client sends arrive PE1, PE1 carries out the Mac-in-Mac encapsulation to this message, after in this message, adding layer two MAC head and srvice instance, with the main PBT tunnel of using of this message input, after middle P equipment (such as switch) inquiry layer two MAC is transmitted, this message forwarded hop-by-hop is arrived opposite equip. PE2, PE2 termination PBT tunnel, after this message peelled off outer MAC encapsulation and srvice instance, be transmitted to the opposite end client again.
Above-mentioned shortcoming of carrying out the method for message transmission in Ethernet is: the tunnel between local end PE and opposite end PE all is a static configuration.Such as, application as shown in Figure 2 the PBT typical case in tunnel of Mac-in-Mac use in the networking schematic diagram, the tunnel between PE1 and the PE2 all is a static configuration.On switch A (seeing the mark among Fig. 2), the master is configured to tunnel A: the physics MAC Address of purpose MAC:PE2/ incoming interface 1, VLAN:VLAN1, outgoing interface: outgoing interface A; Over run tunnel B is configured to the physics MAC Address of purpose MAC:PE2/ incoming interface 2, VLAN:VLAN2, outgoing interface: outgoing interface B.When the interface 1 of PE2 breaks down constantly for some reason, PE1 perceives main state with tunnel A by 802.1ag OAM (Operations, Administration and Maintenance) and breaks down, so the service traffics that will arrive between the PE2 switch to over run tunnel B (seeing the mark among Fig. 2).P equipment for the centre, because the tunnel is that configured in advance is good, the switching of flow just switches to and hits another forwarding-table item from hitting a forwarding-table item, and promptly the list item on the intermediary switch equipment does not need to revise, the tunnel to switch middle equipment be transparent.
But when the physical interface (such as interface 1 and interface 2) of PE1 to the PE2 of the tunnel correspondence of PE2 needs to change, then need to reconfigure the forwarding-table item on PE1 and the P equipment in the middle of all, workload is very big.
Generally under following several situations, PE1 may change to tunnel corresponding physical incoming interface and the incoming interface MAC of PE2:
1, physical damage badly needs to change such as veneer, and at this moment MAC Address changes certainly;
When 2, port is redundant, such as ports having state variation under the Trunk port;
3, PE2 equipment replacement.
Under above-mentioned several situations, because PE1 to the tunnel corresponding physical incoming interface MAC Address of PE2 variation has taken place, need to upgrade the forwarding-table item on two ends PE equipment and the P equipment in the middle of all, workload is very big, and it is maintainable to cause Ethernet to lack.
Summary of the invention
The purpose of this invention is to provide a kind of method and system that in Ethernet is used, uses virtual media access control address.Thereby can realize when the port data of the PE in PBT tunnel equipment changes, not need the switch in PBT tunnel and the forwarding-table item on other operator's equipment are reconfigured.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of using virtual media access control address in Ethernet is used comprises:
Use virtual media access control MAC Address that the service tunnel in the MAC-in-Mac networking is configured.
Comprise step:
Configuration virtual MAC Address on the Provider Edge PE equipment of A, the service tunnel in the MAC-in-Mac networking and the operator's nucleus equipment;
B, when the port information of the PE of described service tunnel equipment changes, on the PE of described service tunnel equipment, reconfigure described virtual mac address.
Described steps A specifically comprises:
Configuration virtual MAC Address on the destination PE equipment of A1, the service tunnel in the MAC-in-Mac networking;
A2, on operator's nucleus equipment of described service tunnel, use described virtual mac address to dispose the destination address of this service tunnel.
Described steps A 1 also comprises:
The a plurality of virtual mac address of configuration on the two ends PE equipment in the MAC-in-Mac networking, many groups service tunnel between these a plurality of virtual mac address and the described two ends PE equipment is corresponding, according to these a plurality of virtual mac address the many groups service tunnel between the PE equipment of described two ends is distinguished.
Described virtual mac address is a unicast mac address, does not conflict mutually in network.
Described service tunnel comprises provider backbone transmission PBT tunnel.
Described operator nucleus equipment comprises switch and other operator's equipment.
Described step B specifically comprises:
When the PE equipment of the service tunnel in the described MAC-in-Mac networking breaks down, use new PE equipment to replace the described PE equipment that breaks down, and on this new PE equipment, reconfigure described virtual mac address.
A kind of system that uses virtual media access control address in Ethernet is used comprises:
PE equipment: dispose one or more virtual mac address, be used for identifying one or more service tunnels of the MAC-in-Mac networking between the PE equipment;
Operator's nucleus equipment: use the one or more virtual mac address that dispose on the described PE equipment to dispose the destination address in the corresponding business tunnel in the described MAC-in-Mac networking.
Described operator nucleus equipment comprises switch and other operator's equipment.
Described service tunnel comprises the PBT tunnel.
As seen from the above technical solution provided by the invention, the present invention is by the one or more virtual MAC of definition, uses the virtual mac address of definition to dispose the address that PBT uses the PBT tunnel of switch and other P equipment in the networking.Thereby can realize when the port data of the two ends in PBT tunnel PE equipment changes, not need the switch in PBT tunnel and the forwarding-table item on other operator's equipment are reconfigured.Avoid to refresh the trouble of tunnel configuration, reduced the complexity of control plane, reduced operational overhead, improved the expandability of network.
Description of drawings
Fig. 1 is a PBT networking schematic diagram of having used the tunnel of Mac-in-Mac;
CE wherein: increase professional tag (S-Tag) for the ethernet frame of ethernet frame or band C-Tag, and it is forwarded to PE; Receive client's ethernet frame and be transmitted to CE equipment from PE; PE: S-Tag is mapped to I-Tag and encapsulates client's ethernet frame and in the MinM frame, transmit the MinM frame to the PBT work tunnel; Receive the MinM frame, and client's ethernet frame is sent to CE equipment; Switch operating tunnel when 802.1ag detects tunnel failure by clean culture CCM; The 802.1p priority of mapping S-Tag is perhaps carried out remark by configuration to the priority of I-Tag/S-Tag to the priority of I-Tag; Dispatch for PBT tunnel bandwidth reserved and to the flow of different priorities; Switch: transmit the MinM frame based on outer purpose MAC and B-Tag; Filter the unknown/broadcast/multi broadcast frame;
Fig. 2 is that the PBT typical case who has used the tunnel of Mac-in-Mac uses in the networking schematic diagram;
Fig. 3 is the process chart of the embodiment of the method for the invention;
Fig. 4 is the networking schematic diagram of the embodiment of use virtual mac address of the present invention;
Fig. 5 is the networking schematic diagram of the embodiment of the many virtual mac address of use of the present invention.
Embodiment
The invention provides a kind of method and system that uses virtual mac address in Ethernet is used, core of the present invention is: do not use the physics MAC Address when configuration PBT tunnel, and use virtual mac address.
Describe the present invention in detail below in conjunction with accompanying drawing, be applied as example with the PBT in the tunnel of having used Mac-in-Mac, the process chart of the embodiment of the method for the invention comprises the steps: as shown in Figure 3
Step 3-1: use virtual mac address to dispose the address that PBT uses the PBT tunnel of PE equipment, operator's nucleus equipment in the networking.
At operator's nucleus equipment of PBT being used in the networking, when carrying out PBT tunnel (comprising main) address configuration, use virtual mac address rather than physical port MAC Address destination address as this PBT tunnel with tunnel and over run tunnel such as switch and other operator's equipment.This virtual mac address is determined by the destination PE equipment in PBT tunnel, promptly at first at this virtual mac address of destination PE equipment disposition, disposes the destination address in the corresponding PBT tunnel on the described operator nucleus equipment by this destination PE equipment.
The form of above-mentioned virtual mac address is identical with the form of physics MAC Address, all is the reference format that adopts IEEE.But it is non-reservation or multicast mac address that this virtual mac address requires, and promptly should adopt clean culture MAC.Simultaneously, this virtual mac address requires to guarantee not conflict in network.
Such as, in the networking schematic diagram of the embodiment of use virtual mac address shown in Figure 4, the PE1 on the switch A is configured to purpose MAC:PE2/ virtual mac address with tunnel A, VLAN:VLAN1, outgoing interface: outgoing interface A to the main of PE2 direction; Over run tunnel B is configured to purpose MAC:PE2/ virtual mac address, VLAN:VLAN2, outgoing interface: outgoing interface B.Above-mentioned virtual mac address is gone up by disposing definite by PE2.PE2 on the switch A is definite by disposing on PE1 to the virtual mac address of the over run tunnel of PE1 direction.
Step 3-2: when the port data of the PE in PBT tunnel equipment changes, on the PE in PBT tunnel equipment, reconfigure described virtual mac address, need not revise PBT and use the forwarding-table item on the switch and other operator's equipment in the networking.
After the address of using virtual mac address PBT to be used the PBT tunnel of PE equipment, switch and other operator's equipment in the networking is configured, when the port data of the PE in PBT tunnel equipment changes, such as, PE equipment generation physical damage, the PE equipment that need more renew, at this moment, the physics MAC Address of new PE equipment and former PE equipment can change.At this moment, on the PE in this PBT tunnel equipment, reconfigure described virtual mac address, do not need to revise PBT and use the forwarding-table item on the switch and other operator's equipment in the networking.
Such as, in the networking schematic diagram of the embodiment of use virtual mac address shown in Figure 4, when the physical port data of PE2 change, during the PE equipment that need more renew, directly on the PE2 after the replacing to reconfiguring above-mentioned virtual mac address, do not need to revise the forwarding-table item on switch A and other operator's equipment.Thereby alleviated the workload of network management widely.Reduced the configuration effort amount.If carry out protocol extension in addition, introduce control plane, also can reduce requirement greatly to control plane.
On the PE equipment of the two ends in PBT tunnel, can only dispose a virtual mac address, also can dispose a plurality of virtual mac address, be used for the many groups of configuration PBT tunnel between the PE equipment of two ends.
Use in the networking at typical PBT, between the PE equipment of two ends, only need one group of tunnel of configuration (comprising main), be used for the carrying client business with tunnel and over run tunnel.In the time need giving different SLA (service-level agreement) to client's different business or client's different business isolated, just can between the PE equipment of two ends, dispose many groups tunnel, and be every group of virtual mac address that tunnel configuration is different.
Such as, in the networking schematic diagram of the embodiment of the many virtual mac address of use shown in Figure 5, between PE1 and PE2, carry different business by many groups service tunnel, during such as business such as voice-bearer, video and data application, can distinguish many group service tunnels by giving the different different VLAN of service tunnel configuration, but the VLAN address space has only 4K, and planning is got up just pretty troublesome.Another is selected is exactly that each virtual mac address is corresponding with one group of service tunnel for many group service tunnels dispose a plurality of virtual mac address, and each virtual mac address identifies one group of service tunnel uniquely.Promptly utilize the virtual mac address of configuration that every group of service tunnel distinguished.Thereby reach and to dispose different VLAN and only distinguish different service tunnels by different virtual mac address.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (11)
1, a kind of method of using virtual media access control address in Ethernet is used is characterized in that, comprising:
Use virtual media access control MAC Address that the service tunnel in the MAC-in-Mac networking is configured.
2, method according to claim 1 is characterized in that, comprises step:
Configuration virtual MAC Address on the Provider Edge PE equipment of A, the service tunnel in the MAC-in-Mac networking and the operator's nucleus equipment;
B, when the port information of the PE of described service tunnel equipment changes, on the PE of described service tunnel equipment, reconfigure described virtual mac address.
3, method according to claim 2 is characterized in that, described steps A specifically comprises:
Configuration virtual MAC Address on the destination PE equipment of A1, the service tunnel in the MAC-in-Mac networking;
A2, on operator's nucleus equipment of described service tunnel, use described virtual mac address to dispose the destination address of this service tunnel.
4, method according to claim 3 is characterized in that, described steps A 1 also comprises:
The a plurality of virtual mac address of configuration on the two ends PE equipment in the MAC-in-Mac networking, many groups service tunnel between these a plurality of virtual mac address and the described two ends PE equipment is corresponding, according to these a plurality of virtual mac address the many groups service tunnel between the PE equipment of described two ends is distinguished.
5, method according to claim 2 is characterized in that, described virtual mac address is a unicast mac address, does not conflict mutually in network.
6, method according to claim 2 is characterized in that, described service tunnel comprises provider backbone transmission PBT tunnel.
7, method according to claim 3 is characterized in that, described operator nucleus equipment comprises switch and other operator's equipment.
8, according to claim 2,3,4,5,6 or 7 described methods, it is characterized in that described step B specifically comprises:
When the PE equipment of the service tunnel in the described MAC-in-Mac networking breaks down, use new PE equipment to replace the described PE equipment that breaks down, and on this new PE equipment, reconfigure described virtual mac address.
9, a kind of system that uses virtual media access control address in Ethernet is used is characterized in that, comprising:
PE equipment: dispose one or more virtual mac address, be used for identifying one or more service tunnels of the MAC-in-Mac networking between the PE equipment;
Operator's nucleus equipment: use the one or more virtual mac address that dispose on the described PE equipment to dispose the destination address in the corresponding business tunnel in the described MAC-in-Mac networking.
10, system according to claim 9 is characterized in that, described operator nucleus equipment comprises switch and other operator's equipment.
11, system according to claim 9 is characterized in that, described service tunnel comprises the PBT tunnel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100574105A CN1897596A (en) | 2006-03-13 | 2006-03-13 | Method and system for controlling access address by virtual medium in Ethernet |
| PCT/CN2006/003311 WO2007104201A1 (en) | 2006-03-13 | 2006-12-06 | A method for forwarding message in the service tunnel of the ethernet application and a system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100574105A CN1897596A (en) | 2006-03-13 | 2006-03-13 | Method and system for controlling access address by virtual medium in Ethernet |
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| Publication Number | Publication Date |
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| CN1897596A true CN1897596A (en) | 2007-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100574105A Pending CN1897596A (en) | 2006-03-13 | 2006-03-13 | Method and system for controlling access address by virtual medium in Ethernet |
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| CN (1) | CN1897596A (en) |
| WO (1) | WO2007104201A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018760A1 (en) * | 2007-08-08 | 2009-02-12 | Huawei Technologies Co., Ltd. | A method and device for network protection |
| WO2009097796A1 (en) * | 2008-01-30 | 2009-08-13 | Huawei Technologies Co., Ltd. | Multicast method of provider backbone transport loop and multicast loop network and node device |
| WO2009135392A1 (en) * | 2008-05-05 | 2009-11-12 | 华为技术有限公司 | Method, system and device of signaling control |
| CN102148735A (en) * | 2010-02-10 | 2011-08-10 | 成都市华为赛门铁克科技有限公司 | Virtual link establishing method, communication network element and Ethernet network system |
| CN101146054B (en) * | 2007-11-09 | 2012-04-18 | 杭州华三通信技术有限公司 | Packet forward method and device under PBT multi-point-to-point mode |
| CN103812780A (en) * | 2012-11-15 | 2014-05-21 | 财团法人工业技术研究院 | Method of converting routing mode of network, central controller and data center network system using the method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7260097B2 (en) * | 2002-01-30 | 2007-08-21 | Nortel Networks Limited | Label control method and apparatus for virtual private LAN segment networks |
| CN100337453C (en) * | 2004-03-19 | 2007-09-12 | 华为技术有限公司 | Method for implementing message forwarding along RPR ring and RPR network |
| CA2571795C (en) * | 2004-06-23 | 2013-10-22 | Nortel Networks Limited | Backbone provider bridging networks |
-
2006
- 2006-03-13 CN CNA2006100574105A patent/CN1897596A/en active Pending
- 2006-12-06 WO PCT/CN2006/003311 patent/WO2007104201A1/en active Application Filing
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018760A1 (en) * | 2007-08-08 | 2009-02-12 | Huawei Technologies Co., Ltd. | A method and device for network protection |
| CN101364926B (en) * | 2007-08-08 | 2011-06-01 | 华为技术有限公司 | Method and apparatus for network protection |
| CN101146054B (en) * | 2007-11-09 | 2012-04-18 | 杭州华三通信技术有限公司 | Packet forward method and device under PBT multi-point-to-point mode |
| WO2009097796A1 (en) * | 2008-01-30 | 2009-08-13 | Huawei Technologies Co., Ltd. | Multicast method of provider backbone transport loop and multicast loop network and node device |
| CN101499950B (en) * | 2008-01-30 | 2011-12-28 | 华为技术有限公司 | Service provider backbone transmission ring multicast method, multicast ring network and node equipment |
| WO2009135392A1 (en) * | 2008-05-05 | 2009-11-12 | 华为技术有限公司 | Method, system and device of signaling control |
| CN102148735A (en) * | 2010-02-10 | 2011-08-10 | 成都市华为赛门铁克科技有限公司 | Virtual link establishing method, communication network element and Ethernet network system |
| CN102148735B (en) * | 2010-02-10 | 2013-07-10 | 成都市华为赛门铁克科技有限公司 | Virtual link establishing method, communication network element and Ethernet network system |
| CN103812780A (en) * | 2012-11-15 | 2014-05-21 | 财团法人工业技术研究院 | Method of converting routing mode of network, central controller and data center network system using the method |
| CN103812780B (en) * | 2012-11-15 | 2017-06-06 | 财团法人工业技术研究院 | Network route pattern conversion method, central controller and data centre network system |
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| Publication number | Publication date |
|---|---|
| WO2007104201A1 (en) | 2007-09-20 |
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Open date: 20070117 |