CN101610216B - Ethernet message forwarding method, device and system - Google Patents
Ethernet message forwarding method, device and system Download PDFInfo
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- CN101610216B CN101610216B CN200910090148A CN200910090148A CN101610216B CN 101610216 B CN101610216 B CN 101610216B CN 200910090148 A CN200910090148 A CN 200910090148A CN 200910090148 A CN200910090148 A CN 200910090148A CN 101610216 B CN101610216 B CN 101610216B
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Abstract
The embodiment of the invention relates to an Ethernet message forwarding method, a device and a system. The Ethernet message to be forwarded is received, and the Ethernet message carries control virtual local area network identifiers; according to the control virtual local area network identifiers and forwarded messages, a corresponding output port for forwarding the Ethernet message is determined; and the Ethernet message is forwarded by the output port. Therefore, under the condition of still adopting a unicast mode to forward messages, according to the control virtual local area network identifiers carried by the Ethernet message and forwarded information, the corresponding output port for forwarding the Ethernet message is determined. Therefore, the invention avoids needing to learn media access control addresses when forwarding equipment forwards the Ethernet message, and ensures the forwarding efficiency of the Ethernet message of the forwarding equipment.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of Ethernet message forwarding method, Apparatus and system.
Background technology
In present ether metropolitan area network (ME:Metro Ethernet) solution; Shown in accompanying drawing 1; Adopt VPLS (VPLS:Virtual Private LAN Service) to set up the ME network; The user inserts user side provider edge equipment (UPE:User FacingProvider Edge) through digital subscriber line access multiplex (DSLAM:Digital Subscriber LineAccess Multiplexer); UPE and provider edge equipment (PE:Provider Edge) are formed the VPLS network; VPLS is professional for the PE termination, gets into three-layer network through network side provider edge equipment (NPE:NetworkFacing Provider Edge).
Existing scheme has two kinds of message forwarding methods: one, close media interviews control (MAC:Media Access Control) address learning, let message in virtual switch instance (VSI:VirtualSwitching Instance), broadcast; Two, study MAC Address, message can carry out clean culture and transmit.
If adopt message in VSI, to broadcast,, be infeasible therefore then owing to all very big to forwarding performance and network bandwidth influence; And if the mode of employing study MAC Address promptly E-Packets according to MAC Address, then equipment need be learnt all users' MAC Address, and is when number of users increases, also increasingly high to the requirement of equipment.Current specification is that 128K MAC Address supported in requirement, and this specification also has the constantly trend of expansion, and this has just caused the capacity of the mac address table that equipment need store increasing, causes the device forwards decrease in efficiency.
Summary of the invention
The embodiment of the invention provides a kind of Ethernet message forwarding method, Apparatus and system, thereby has avoided forwarding unit study media access control address.
The embodiment of the invention provides a kind of ether metropolitan area network message forwarding method, and in virtual special LAN service network, said method comprises:
The Ethernet message that reception is to be transmitted, said Ethernet message carries the control VLAN ID;
Based on said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port;
Transmit said Ethernet message through said outbound port.
The embodiment of the invention also provides a kind of user side provider edge equipment, and in virtual special LAN service network, said equipment comprises:
Receiver module is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module is used for entrained control VLAN ID of Ethernet message and forwarding information according to said receiver module reception, confirms to transmit said Ethernet message corresponding output port;
Forwarding module is used for transmitting the Ethernet message that said receiver module receives through the definite outbound port of said determination module.
The embodiment of the invention also provides a kind of provider edge equipment, and in virtual special LAN service network, said equipment comprises:
Receiver module is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module is used for entrained control VLAN ID of Ethernet message and forwarding information according to said receiver module reception, confirms to transmit said Ethernet message corresponding output port;
Forwarding module is used for transmitting the Ethernet message that said receiver module receives through the definite outbound port of said determination module.
The embodiment of the invention also provides a kind of ether metropolitan area network message forwarding system, and in virtual special LAN service network, said system comprises:
The user side provider edge equipment; Be used to receive Ethernet message to be transmitted; Said Ethernet message carries the control VLAN ID, and control VLAN ID and the forwarding information entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port; And, said Ethernet message is forwarded to provider edge equipment or user side equipment through said outbound port;
Provider edge equipment; Be used to receive Ethernet message to be transmitted; Said Ethernet message carries the control VLAN ID, and control VLAN ID and the forwarding information entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port; And, said Ethernet message is forwarded to network side provider edge equipment or user side provider edge equipment through said outbound port.
Technical scheme by the invention described above embodiment provides can find out that in the embodiment of the invention, through reception Ethernet message to be transmitted, said Ethernet message carries the control VLAN ID; According to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port; Transmit said Ethernet message through said outbound port.Thereby under the situation that the mode that still adopts clean culture E-Packets; Control VLAN ID and the forwarding information entrained according to the Ethernet message; Confirm to transmit Ethernet message corresponding output port; Therefore avoid forwarding unit when transmitting the Ethernet message, needed the study media access control address, guaranteed the Ethernet message forward efficiency of forwarding unit.
Description of drawings
Fig. 1 is an ether metropolitan area network networking structure sketch map in the prior art;
Fig. 2 specifically realizes sketch map one for the said method that the embodiment of the invention provides;
Fig. 3 specifically realizes sketch map two for the said method that the embodiment of the invention provides;
Fig. 4 specifically realizes sketch map three for the said method that the embodiment of the invention provides;
Fig. 5 specifically realizes sketch map four for the said method that the embodiment of the invention provides;
Fig. 6 specifically realizes sketch map five for the said method that the embodiment of the invention provides;
The said UPE structural representation one that Fig. 7 provides for the embodiment of the invention;
The said UPE structural representation two that Fig. 8 provides for the embodiment of the invention;
The said PE structural representation one that Fig. 9 provides for the embodiment of the invention;
The said PE structural representation two that Figure 10 provides for the embodiment of the invention;
The said system configuration sketch map one that Figure 11 provides for the embodiment of the invention;
The said system configuration sketch map two that Figure 12 provides for the embodiment of the invention.
Embodiment
In the specific embodiment of the Ethernet message forwarding method that the embodiment of the invention provides, shown in accompanying drawing 2, through carrying out following steps:
Step 21 receives Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Step 22 according to said control VLAN ID and forwarding information, confirms to transmit said Ethernet message corresponding output port;
Step 23 is transmitted said Ethernet message through said outbound port.
Thereby under the situation that the mode that still adopts clean culture E-Packets; The control VLAN entrained (VLAN:Virtual Local Area Network) sign (ID) according to the Ethernet message; Promptly controlling VID is keyword (key); And relevant forwarding information, confirm to transmit Ethernet message corresponding output port, therefore avoided forwarding unit when transmitting the Ethernet message; Need study media interviews control (MAC:Media Access Control) address, guaranteed the Ethernet message forward efficiency of forwarding unit.
In a specific embodiment of the Ethernet message forwarding method that the embodiment of the invention provides; MAC Address for fear of the forwarding unit learn user; And still keep adopting the mode of clean culture to transmit the Ethernet message; At control plane; Be all forwarding units,, be used for distinct interface in the same virtual switch instance of unique identification (VSI:Virtual Switching Instance) such as each the interface configuration Different control VID on user side provider edge equipment (UPE:User Facing Provider Edge) or the provider edge equipment (PE:ProviderEdge).
Need to prove, for fear of obscuring, forwarding unit in the embodiment of the invention, such as PE or UPE, the control VID of local terminal self representes with cTag, and entrained control VID in the Ethernet message that receives for forwarding unit representes with fTag.
In addition; At Forwarding plane; The embodiment of the invention has changed former with good grounds mac address table and has carried out the Ethernet message and transmit, promptly according to MAC Address and VSI index (Vsilndex) as key value (key), confirm that correspondence transfers the Ethernet message pass-through mode of port; But adopt control VID (being fTag) entrained in the Ethernet message that sends according to far-end as the key value; And other relevant forwarding informations, confirm that correspondence transfers the Ethernet message pass-through mode of port, transmit the Ethernet message.
Below in conjunction with accompanying drawing, a concrete implementation procedure of the Ethernet message forwarding method that the embodiment of the invention is provided is carried out detailed statement.
Suppose user side equipment router one (Router1) and router two (Router1) that UPE is affiliated, the label of UPE issue is 200.
So; When router one when network side provider edge equipment (NPE:Network FacingProvider Edge) sends the Ethernet message (the control VID=1 that this Ethernet message carries); The Ethernet message forwarding method that the embodiment of the invention provides is shown in accompanying drawing 3; This method is moved on user side provider edge equipment UPE, specifically can comprise:
Step 31, UPE sends the Ethernet message that carries control VID=1 through inbound port 2 (PORT=2) receiving router 1.
Step 32, the ingress port information that UPE is adopted according to control VID=1 entrained in the Ethernet message (for UPE, i.e. fTag=1) with when receiving this Ethernet message, i.e. PORT=2, corresponding output port is PORT=1 when confirming to transmit this Ethernet message.
Need to prove; In the embodiment of the invention; Forwarding unit is being a keyword according to the entrained control VLAN ID of this Ethernet message, and is aided with relevant forwarding information, confirms to transmit in the process of this Ethernet message corresponding output port; Can be according to prior foundation; And be stored in the forwarding information in the forwarding unit, such as the outgoing label of cTag or fTag, outbound port, inbound port, Vsilndex, forwarding unit with go into the corresponding relation between label or the like, corresponding port when confirming to transmit the Ethernet message.
So, corresponding to the embodiment of the invention, then can be according to forwarding information corresponding relation as shown in table 1 below, corresponding output port when confirming to transmit the Ethernet message, promptly outbound port is PORT1.
Table 1
| Equipment | fTag | VsiIndex | cTag | Inbound port | Outbound port | Outgoing label | Go into label |
| UPE | 2 | 1 | 1 | PORT1 | PORT2 | 200 | 100 |
| UPE | 1 | 1 | 2 | PORT2 | PORT1 | 200 | 100 |
| UPE | 1 | 1 | 3 | PORT3 | PORT1 | 200 | 100 |
It is understandable that; Form and form cited in the embodiment of the invention limit the forwarding information corresponding relation; The technical scheme that is just provided, but the effect that does not influence and limit for the protection range of the embodiment of the invention in order more clearly to explain the embodiment of the invention.
Such as, in another specific embodiment of the Ethernet message forwarding method that the embodiment of the invention provides, can set up and be stored in the forwarding information corresponding relation shown in below table 2, table 3, table 4 among the UPE in advance:
Table 2
| Equipment | fTag | VsiIndex | cTag | Inbound port |
| UPE | 2 | 1 | 1 | PORT1 |
| UPE | 1 | 1 | 2 | PORT2 |
| UPE | 1 | 1 | 3 | PORT3 |
Table 3
| Equipment | fTag | VsiIndex | Outgoing label | Outbound port |
| UPE | 2 | 1 | 200 | PORT2 |
| UPE | 1 | 1 | 200 | PORT1 |
| UPE | 1 | 1 | 200 | PORT1 |
Table 4
| Equipment | fTag | VsiIndex | Go into label |
| UPE | 1 | 1 | 100 |
Then in the step 32; The ingress port information that UPE is at first adopted when receiving this Ethernet message according to the entrained control fTag=1 of this Ethernet message; Be PORT=2,, confirm among the UPE through forwarding information corresponding relation as shown in table 2; With fTag=1 corresponding virtual exchange instance index, i.e. Vsilndex=1;
Then, entrained according to the Ethernet message again control VLAN ID and the definite virtual switch instance index of UPE; Be Vsilndex=1; Through inquiring about forwarding information corresponding relation as shown in table 3, confirm to transmit this Ethernet message corresponding output port, promptly outbound port is PORT1.
The outbound port that the embodiment of the invention is related, the port that is adopted when being appreciated that to forwarding Ethernet message, the port that inbound port is adopted when being appreciated that to the reception message, simultaneously, outbound port or inbound port also can be with going out the tunnel or going into the tunnel and replace; The outgoing label that the embodiment of the invention is related is appreciated that the label into forwarding unit itself issue, goes into label and is appreciated that and is the entrained device label of the message that is received.
Also need explain in addition the time; According to waiting to transmit Ethernet message entrained control VID and forwarding information, confirm to transmit in the Ethernet message corresponding output port process, also can adopt other mature technique of this area to realize; To this, the embodiment of the invention does not limit.
Step 33, the outbound port through confirming sends Ethernet message to be transmitted.
In this step, can also comprise control VID with UPE itself, i.e. the device label of cTag=2, and UPE issue, promptly outgoing label=200 are inserted in the Ethernet message, and are transmitted amended Ethernet message (specifically can be forwarded to the PE place).
Concrete; Can be according to the entrained fTag=1 of Ethernet message that receives; Through forwarding information corresponding relation as shown in table 1; Perhaps, confirm to control the device label of VID and UPE issue with the entrained corresponding UPE of fTag=1 of the Ethernet message that receives according to the forwarding information corresponding relation shown in table 2, table 3.
In another specific embodiment of Ethernet message forwarding method that the embodiment of the invention provides; As NPE (control VID=2 that this Ethernet message carries when router one sends the Ethernet message; And the control VID=1 of PE, device label=100 of PE issue), then the Ethernet message forwarding method that provides of the embodiment of the invention is shown in accompanying drawing 4; This method is moved on user side provider edge equipment UPE, specifically can comprise:
Step 41, UPE receives by what PE sent through inbound port 1 (PORT1) and waits to transmit the Ethernet message.
Step 42; UPE according to control VID=2 entrained in this Ethernet message (for UPE, i.e. fTag=2) and this Ethernet message entrained go into label=100 (being the device label of PE issue); Corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT=2.
Concrete; UPE can be according to entrained fTag=2 in this Ethernet message; With this Ethernet message entrained go into label=100, through forwarding information corresponding relation as shown in table 1, the perhaps forwarding information corresponding relation shown in table 3, table 4; Corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT2.
Step 43, UPE adopts the outbound port of confirming, sends Ethernet message to be transmitted.
In this step, can also the Ethernet message is entrained, the control VID of Ethernet message itself; Be that fTag=2 deletes (at this moment; This Ethernet message only carries the control VID=1 of PE), and transmit amended Ethernet message (specifically can be forwarded to user side equipment) like router one.
In the specific embodiment of the Ethernet message forwarding method that the embodiment of the invention provides; This method is moved on provider edge equipment PE; Suppose PE interface configuration control VID1 (being cTag=1); This interface can be handled the message that carries control VID2 and control VID3 (being fTag2 and fTag3), and the label of PE issue is 100.
So; (this Ethernet message carries the control VID=2 of Ethernet message itself when NPE sends the Ethernet message when router one; And the control VID=1 of UPE; Device label=200 of UPE issue), then the Ethernet message forwarding method that provides of the embodiment of the invention is shown in accompanying drawing 5, and PE is concrete to carry out following operation:
Step 51, PE receives by what UPE sent through inbound port 1 (PORT1) and waits to transmit the Ethernet message.
Step 52; PE according to control VID=2 entrained in this Ethernet message (for PE; Be fTag=2) and this Ethernet message entrained go into label=200 (be UPE issue device label), corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT=2.
Concrete; PE can according to fTag=2 entrained in this Ethernet message and this Ethernet message entrained go into label=200; Through the forwarding information corresponding relation shown in below table 5, corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT2.
Table 5
| Equipment | fTag | VsiIndex | cTag | Inbound port | Outbound port | Outgoing label | Go into label |
| PE | 2 | 1 | 1 | PORT1 | PORT2 | 100 | 200 |
| |
1 | 1 | 1 | PORT2 | PORT1 | 100 | 200 |
Perhaps; PE can according to fTag=2 entrained in this Ethernet message and this Ethernet message entrained go into label=200; Through the forwarding information corresponding relation shown in below table 7, table 8, corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT2.
Table 6
| Equipment | fTag | VsiIndex | cTag | Inbound port |
| PE | 2 | 1 | 1 | |
| PE | ||||
| 1 | 1 | 2 | PORT2 |
Table 7
| Equipment | fTag | VsiIndex | Outgoing label | Outbound port |
| PE | 2 | 1 | 100 | |
| PE | ||||
| 1 | 1 | 100 | PORT1 |
Table 8
| Equipment | fTag | VsiIndex | Go into label |
| PE | 2 | 1 | 200 |
Step 53, PE adopts the outbound port of confirming, sends Ethernet message to be transmitted.
In this step; Can also the Ethernet message is entrained, the control VID of Ethernet message itself is fTag=2 deletion (at this moment, this Ethernet message only carries the control VID=1 of UPE); And transmit amended Ethernet message (specifically can be forwarded to network equipment) like NPE.
So; In the specific embodiment of the Ethernet message forwarding method that the embodiment of the invention provides; This method is moved on provider edge equipment PE; When NPE when router one sends the Ethernet message (this Ethernet message carries the control VID=1 of Ethernet message itself), then the Ethernet message forwarding method that provides of the embodiment of the invention specifically can comprise shown in accompanying drawing 6:
Step 61, PE receives NPE through inbound port 2 (PORT=2) and sends the Ethernet message that carries control VID=1.
Step 62; The inbound port that PE is adopted according to control VID=1 entrained in this Ethernet message (for PE, i.e. fTag=1) with when receiving this Ethernet message, promptly inbound port is PORT=2; Corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT=1.
Concrete; The inbound port that PE can be adopted when receiving this Ethernet message based on fTag=1 entrained in this Ethernet message; Be that inbound port is PORT=2, through the forwarding information corresponding relation shown in the table 5, corresponding output port is PORT=1 when confirming to transmit this Ethernet message.
Perhaps; The outbound port that PE can be at first adopted when receiving this Ethernet message according to fTag=1 entrained in this Ethernet message; Be that outbound port is PORT=2; Through the forwarding information corresponding relation shown in table 6, the table 7, corresponding output port when confirming to transmit this Ethernet message, promptly outbound port is PORT=1.
Step 63, the outbound port through confirming sends Ethernet message to be transmitted.
In this step, can also comprise control VID with PE itself, i.e. the device label of cTag=2, and PE issue, promptly outgoing label=100 are inserted in the Ethernet message, and are transmitted amended Ethernet message (specifically can be forwarded to the UPE place).
Concrete; Can be according to the entrained fTag=1 of Ethernet message that receives; Through forwarding information corresponding relation as shown in table 5; Perhaps, confirm to control the device label of VID and PE issue with the entrained corresponding PE of fTag=1 of the Ethernet message that receives according to the forwarding information corresponding relation shown in table 6, table 7.
Above-mentioned describing can be found out, the Ethernet message forwarding method that the embodiment of the invention provides, and through reception Ethernet message to be transmitted, said Ethernet message carries the control VLAN ID; According to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port; Transmit said Ethernet message through said outbound port.Thereby under the situation that the mode that still adopts clean culture E-Packets; Control VLAN ID and the forwarding information entrained according to the Ethernet message; Confirm to transmit Ethernet message corresponding output port; Therefore avoid forwarding unit when transmitting the Ethernet message, needed the study media access control address, guaranteed the Ethernet message forward efficiency of forwarding unit.
The embodiment of the invention also provides a kind of user side provider edge equipment (UPE:User FacingProvider Edge), and shown in accompanying drawing 7, in virtual special LAN service network, this UPE specifically can comprise:
Receiver module 710 is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module 720 is used for entrained control VLAN ID of Ethernet message and forwarding information according to said receiver module 710 receptions, confirms to transmit said Ethernet message corresponding output port;
Forwarding module 730 is used for the outbound port confirmed through said determination module 720, transmits the Ethernet message that said receiver module 710 receives.
In the specific embodiment of the UPE that the embodiment of the invention provides; Media interviews control (MAC:Media Access Control) address for fear of the UPE learn user; And still keep adopting the mode of clean culture to transmit the Ethernet message; At control plane; For each interface configuration Different control VLAN on the UPE (VLAN:Virtual Local Area Network) sign (ID), promptly control VID, be used for distinct interface in the same virtual switch instance of unique identification (VSI:Virtual SwitchingInstance).
Need to prove that for fear of obscuring, the control VID of UPE self representes with cTag in the embodiment of the invention, and, represent with fTag for entrained control VID in the Ethernet message that receives.
In addition; At Forwarding plane; The embodiment of the invention has changed former with good grounds mac address table and has carried out the Ethernet message and transmit, promptly according to MAC Address and VSI index (Vsilndex) as key value (key), confirm that correspondence transfers the Ethernet message pass-through mode of port; But adopt control VID (being fTag) entrained in the Ethernet message that sends according to far-end as the key value; And other relevant forwarding informations, confirm that correspondence transfers the Ethernet message pass-through mode of port, transmit the Ethernet message.
In the specific embodiment of the UPE that the embodiment of the invention provides, receiver module 710 specifically can receive waits to transmit the Ethernet message from user side equipment or provider edge equipment (PE:Provider Edge).Carry control VID in this Ethernet message.
In the specific embodiment of the UPE that the embodiment of the invention provides, determination module 720 specifically can comprise shown in accompanying drawing 8:
Concrete, memory cell 721 can be in advance with the forwarding information among the UPE, such as the outgoing label of cTag or fTag, outbound port, inbound port, Vsilndex, forwarding unit with go into the corresponding relation between label or the like, builds the table preservation.Like above-mentioned table 1 to shown in the table 8.
Concrete; When waiting of receiving of receiver module 710 transmitted the Ethernet message for the Ethernet message transmitted from user side equipment; Search the ingress port information that unit 722 is adopted when receiving this Ethernet message based on the entrained control VLAN ID of this Ethernet message; Memory cell 721 stored through searching, and forwarding information corresponding relation as shown in table 1 confirms to transmit this Ethernet message corresponding output port;
Perhaps,
Search the ingress port information that unit 722 is at first adopted when receiving this Ethernet message according to the entrained control VLAN ID of this Ethernet message; Memory cell 721 stored through searching; Forwarding information corresponding relation as shown in table 2 is confirmed the control VLAN ID corresponding virtual exchange instance index entrained with this Ethernet message; Then; Search unit 722 the control VLAN ID and the virtual switch instance index confirmed entrained according to this Ethernet message; Memory cell 721 stored through searching, and forwarding information corresponding relation as shown in table 3 confirms to transmit said Ethernet message corresponding output port.
When waiting of receiving of receiver module 710 transmitted the Ethernet message for the Ethernet message transmitted from the network side provider edge equipment; Search the device label of unit 722 based on provider edge equipment entrained in the entrained control VLAN ID of this Ethernet message and this Ethernet message; Memory cell 721 stored through searching; Forwarding information corresponding relation as shown in table 1 confirms to transmit this Ethernet message corresponding output port;
Perhaps,
In the specific embodiment of the UPE that the embodiment of the invention provides, forwarding module 730 specifically can pass through the outbound port that determination module 720 is confirmed, waits that with what receiver module 710 received transmitting the Ethernet message is forwarded to user side equipment or PE.
Concrete; When needs will be to be transmitted Ethernet message when being forwarded to PE; Forwarding module 730 can be with the control VLAN ID corresponding UPE control VLAN ID entrained with this Ethernet message; And the device label of UPE issue, insert this Ethernet message, and send amended Ethernet message.
When needs will be to be transmitted Ethernet message when being forwarded to user side equipment, the control VLAN ID deletion that forwarding module 730 can be entrained with this Ethernet message, and send amended Ethernet message.
Above-mentioned describing can be found out, the UPE that the embodiment of the invention provides, and through reception Ethernet message to be transmitted, said Ethernet message carries the control VLAN ID; According to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port; Transmit said Ethernet message through said outbound port.Thereby under the situation that the mode that still adopts clean culture E-Packets; Control VLAN ID and the forwarding information entrained according to the Ethernet message; Confirm to transmit Ethernet message corresponding output port; Therefore avoid forwarding unit when transmitting the Ethernet message, needed the study media access control address, guaranteed the Ethernet message forward efficiency of forwarding unit.
The embodiment of the invention also provides a kind of provider edge equipment (PE:Provider Edge), and shown in accompanying drawing 9, in virtual special LAN service network, this PE specifically can comprise:
In the specific embodiment of the PE that the embodiment of the invention provides; Media interviews control (MAC:Media Access Control) address for fear of the PE learn user; And still keep adopting the mode of clean culture to transmit the Ethernet message; At control plane; For each interface configuration Different control VLAN on the PE (VLAN:Virtual Local Area Network) sign (ID), promptly control VID, be used for distinct interface in the same virtual switch instance of unique identification (VSI:Virtual Switching Instance).
Need to prove that for fear of obscuring, the control VID of PE self representes with cTag in the embodiment of the invention, and, represent with fTag for entrained control VID in the Ethernet message that receives.
In addition; At Forwarding plane; The embodiment of the invention has changed former with good grounds mac address table and has carried out the Ethernet message and transmit, promptly according to MAC Address and VSI index (Vsilndex) as key value (key), confirm that correspondence transfers the Ethernet message pass-through mode of port; But adopt control VID (being fTag) entrained in the Ethernet message that sends according to far-end as the key value; And other relevant forwarding informations, confirm that correspondence transfers the Ethernet message pass-through mode of port, transmit the Ethernet message.
In the specific embodiment of the PE that the embodiment of the invention provides, receiver module 910 specifically can receive waits to transmit the Ethernet message from user side provider edge equipment (UPE:User Facing Provider Edge) or network side provider edge equipment (NPE:Network Facing Provider Edge).Carry control VID in this Ethernet message.
In the specific embodiment of the PE that the embodiment of the invention provides, determination module 920 specifically can comprise shown in accompanying drawing 10:
Concrete, memory cell 921 can be in advance with the forwarding information among the PE, such as the outgoing label of cTag or fTag, outbound port, inbound port, Vsilndex, forwarding unit with go into the corresponding relation between label or the like, builds the table preservation.Like above-mentioned table 1 to shown in the table 8.
Concrete; When waiting of receiving of receiver module 910 transmitted the Ethernet message for the Ethernet message transmitted from NPE; Search the ingress port information that unit 922 is adopted when receiving this Ethernet message based on the entrained control VLAN ID of this Ethernet message; Memory cell 921 stored through searching, and forwarding information corresponding relation as shown in table 5 confirms to transmit this Ethernet message corresponding output port;
Perhaps,
Search the ingress port information that unit 922 is at first adopted when receiving this Ethernet message based on the entrained control VLAN ID of this Ethernet message; Memory cell 921 stored through searching; Forwarding information corresponding relation as shown in table 6 is confirmed the control VLAN ID corresponding virtual exchange instance index entrained with this Ethernet message;
Then; Search unit 922 the control VLAN ID and the virtual switch instance index confirmed entrained according to this Ethernet message; Memory cell 921 stored through searching, and forwarding information corresponding relation as shown in table 7 confirms to transmit said Ethernet message corresponding output port.
When waiting of receiving of receiver module 910 transmitted the Ethernet message for the Ethernet message transmitted from UPE; Search the device label of unit 922 based on UPE entrained in the entrained control VLAN ID of this Ethernet message and this Ethernet message; Memory cell 921 stored through searching; Forwarding information corresponding relation as shown in table 5 confirms to transmit this Ethernet message corresponding output port;
Perhaps,
Then; Search unit 922 the control VLAN ID and the virtual switch instance index confirmed entrained according to this Ethernet message; Memory cell 921 stored through searching, and forwarding information corresponding relation as shown in table 7 confirms to transmit this Ethernet message corresponding output port.
In the specific embodiment of the PE that the embodiment of the invention provides, forwarding module 930 specifically can pass through the outbound port that determination module 920 is confirmed, waits that with what receiver module 910 received transmitting the Ethernet message is forwarded to UPE or NPE.
Concrete; When needs will be to be transmitted Ethernet message when being forwarded to UPE; Forwarding module 930 can be with the control VLAN ID corresponding PE control VLAN ID entrained with this Ethernet message; And the device label of PE issue, insert this Ethernet message, and send amended Ethernet message.
When needs will be to be transmitted Ethernet message when being forwarded to NPE, the control VLAN ID deletion that forwarding module 930 can be entrained with this Ethernet message, and send amended Ethernet message.
Above-mentioned describing can be found out, the PE that the embodiment of the invention provides, and through reception Ethernet message to be transmitted, said Ethernet message carries the control VLAN ID; According to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port; Transmit said Ethernet message through said outbound port.Thereby under the situation that the mode that still adopts clean culture E-Packets; Control VLAN ID and the forwarding information entrained according to the Ethernet message; Confirm to transmit Ethernet message corresponding output port; Therefore avoid forwarding unit when transmitting the Ethernet message, needed the study media access control address, guaranteed the Ethernet message forward efficiency of forwarding unit.
The embodiment of the invention also provides a kind of Ethernet message forwarding system; Shown in accompanying drawing 11; In virtual special LAN service network, this system specifically can comprise user side provider edge equipment 1110 (UPE:User Facing Provider Edge) and provider edge equipment 1120 (PE:Provider Edge).Wherein:
User side provider edge equipment 1110; Be used to receive Ethernet message to be transmitted; Said Ethernet message carries the control VLAN ID, and control VLAN ID and the forwarding information entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port; And, said Ethernet message is forwarded to provider edge equipment 1120 or user side equipment through said outbound port;
In another specific embodiment of the Ethernet message forwarding system that the embodiment of the invention provides, shown in accompanying drawing 12, this system can also comprise:
Network side provider edge equipment 1140 is used for sending the Ethernet message to said provider edge equipment 1120, perhaps receives the Ethernet message that said provider edge equipment 1120 is transmitted.
The specific operation process of the Ethernet message forwarding system that the embodiment of the invention provides, the technical scheme shown in accompanying drawing 2 to 10 that please provides with reference to the invention described above embodiment repeats no more at this.
Above-mentioned describing can be found out, the Ethernet message forwarding system that the embodiment of the invention provides, and through reception Ethernet message to be transmitted, said Ethernet message carries the control VLAN ID; According to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port; Transmit said Ethernet message through said outbound port.Thereby under the situation that the mode that still adopts clean culture E-Packets; Control VLAN ID and the forwarding information entrained according to the Ethernet message; Confirm to transmit Ethernet message corresponding output port; Therefore avoid forwarding unit when transmitting the Ethernet message, needed the study media access control address, guaranteed the Ethernet message forward efficiency of forwarding unit.
Description through above execution mode; Those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform; Can certainly all implement, but the former is better execution mode under a lot of situation through hardware.Based on such understanding; All or part of can the coming out that technical scheme of the present invention contributes to background technology with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is 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 (13)
1. an Ethernet message forwarding method is characterized in that, in virtual special LAN service network, said method comprises:
The Ethernet message that reception is to be transmitted, said Ethernet message carries the control VLAN ID;
Based on said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port;
Transmit said Ethernet message through said outbound port; When said reception Ethernet message to be transmitted when receiving the Ethernet message of transmitting from user side or when receiving the Ethernet message of transmitting from the network side provider edge equipment, said forwarding information comprises the ingress port information that is adopted when receiving said Ethernet message; When said reception Ethernet message to be transmitted is that said forwarding information comprises the device label of said provider edge equipment entrained in the said Ethernet message when receiving the Ethernet message of transmitting from provider edge equipment; When said reception Ethernet message to be transmitted is that said forwarding information comprises the device label of said user side provider edge equipment entrained in the said Ethernet message when receiving the Ethernet message of transmitting from the user side provider edge equipment.
2. method according to claim 1; It is characterized in that; When said reception Ethernet message to be transmitted is when receiving the Ethernet message of transmitting from user side; Correspondingly, said according to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port and comprise:
The user side provider edge equipment confirms to transmit said Ethernet message corresponding output port according to the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message;
Perhaps,
At first; The user side provider edge equipment is confirmed the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message according to the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message; Then, control VLAN ID and the said virtual switch instance index of confirming that the user side provider edge equipment is entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port.
3. method according to claim 2 is characterized in that, saidly transmits said Ethernet message through said outbound port and comprises:
The corresponding user side provider edge equipment control VLAN ID of control VLAN ID that will be entrained with said Ethernet message; And the device label of said user side provider edge equipment issue; Insert said Ethernet message, and send amended said Ethernet message.
4. method according to claim 1; It is characterized in that; When said reception Ethernet message to be transmitted is when receiving the Ethernet message of transmitting from provider edge equipment; Correspondingly, said according to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port and comprise:
The user side provider edge equipment confirms to transmit said Ethernet message corresponding output port according to the device label of said provider edge equipment entrained in entrained control VLAN ID of said Ethernet message and the said Ethernet message;
Perhaps,
At first; The user side provider edge equipment is confirmed the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message according to the device label of said provider edge equipment entrained in entrained control VLAN ID of said Ethernet message and the said Ethernet message; Then, control VLAN ID and the said virtual switch instance index of confirming that the user side provider edge equipment is entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port.
5. method according to claim 4 is characterized in that, saidly transmits said Ethernet message through said outbound port and comprises:
The control VLAN ID deletion that said Ethernet message is entrained, and send amended said Ethernet message.
6. method according to claim 1; It is characterized in that; When said reception Ethernet message to be transmitted is when receiving the Ethernet message of transmitting from the user side provider edge equipment; Correspondingly, said according to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port and comprise:
Provider edge equipment confirms to transmit said Ethernet message corresponding output port according to the device label of said user side provider edge equipment entrained in entrained control VLAN ID of said Ethernet message and the said Ethernet message;
Perhaps,
At first; Provider edge equipment is confirmed the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message according to the device label of said user side provider edge equipment entrained in entrained control VLAN ID of said Ethernet message and the said Ethernet message; Then, control VLAN ID and the said virtual switch instance index of confirming that provider edge equipment is entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port.
7. method according to claim 6 is characterized in that, saidly transmits said Ethernet message through said outbound port and comprises:
The control VLAN ID deletion that said Ethernet message is entrained, and send amended said Ethernet message.
8. method according to claim 1; It is characterized in that; When said reception Ethernet message to be transmitted is when receiving the Ethernet message of transmitting from the network side provider edge equipment; Correspondingly, said according to said control VLAN ID and forwarding information, confirm to transmit said Ethernet message corresponding output port and comprise:
Provider edge equipment confirms to transmit said Ethernet message corresponding output port according to the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message;
Perhaps,
At first; Provider edge equipment is confirmed the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message according to the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said message; Then, control VLAN ID and the said virtual switch instance index of confirming that provider edge equipment is entrained according to said Ethernet message confirm to transmit said Ethernet message corresponding output port.
9. method according to claim 8 is characterized in that, saidly transmits said Ethernet message through said outbound port and comprises:
The corresponding provider edge equipment control VLAN ID of control VLAN ID that will be entrained with said Ethernet message; And the device label of said provider edge equipment issue; Insert said Ethernet message, and send amended said Ethernet message.
10. a user side provider edge equipment is characterized in that, in virtual special LAN service network, said equipment comprises:
Receiver module is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module is used for entrained control VLAN ID of Ethernet message and forwarding information according to said receiver module reception, confirms to transmit said Ethernet message corresponding output port;
Forwarding module is used for transmitting the Ethernet message that said receiver module receives through the definite outbound port of said determination module;
When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from user side; Said determination module specifically is used for: based on the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message, confirm to transmit said Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: the ingress port information that is adopted when receiving said Ethernet message based on the entrained control VLAN ID of said Ethernet message at first, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port;
When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from provider edge equipment; Said determination module specifically is used for: based on the device label of the entrained provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm to transmit this Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: at first based on the device label of the entrained provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port.
11. a provider edge equipment is characterized in that, in virtual special LAN service network, said equipment comprises:
Receiver module is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module is used for entrained control VLAN ID and the forwarding information of Ethernet message according to said receiver module reception, confirms to transmit said Ethernet message corresponding output port;
Forwarding module is used for transmitting the Ethernet message that said receiver module receives through the definite outbound port of said determination module;
When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from the network side provider edge equipment; Said determination module specifically is used for: based on the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message, confirm to transmit said Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: the ingress port information that is adopted when receiving said Ethernet message based on the entrained control VLAN ID of said Ethernet message at first, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port;
When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from the user side provider edge equipment; Said determination module specifically is used for: based on the device label of the entrained user side provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm to transmit said Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: at first based on the device label of the entrained user side provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port.
12. an Ethernet message forwarding system, its characteristic exists, and in virtual special LAN service network, said system comprises user side provider edge equipment and provider edge equipment, wherein:
The user side provider edge equipment comprises:
Receiver module is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module is used for entrained control VLAN ID of Ethernet message and forwarding information according to said receiver module reception, confirms to transmit said Ethernet message corresponding output port;
Forwarding module is used for transmitting Ethernet message to provider edge equipment or user side equipment that said receiver module receives through the definite outbound port of said determination module;
When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from user side; Said determination module specifically is used for: based on the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message, confirm to transmit said Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: the ingress port information that is adopted when receiving said Ethernet message based on the entrained control VLAN ID of said Ethernet message at first, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port; When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from provider edge equipment; Said determination module specifically is used for: based on the device label of the entrained provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm to transmit this Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: at first based on the device label of the entrained provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port;
Provider edge equipment comprises:
Receiver module is used to receive Ethernet message to be transmitted, and said Ethernet message carries the control VLAN ID;
Determination module is used for entrained control VLAN ID and the forwarding information of Ethernet message according to said receiver module reception, confirms to transmit said Ethernet message corresponding output port;
Forwarding module is used for transmitting Ethernet message to network side provider edge equipment or user side provider edge equipment that said receiver module receives through the definite outbound port of said determination module;
When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from the network side provider edge equipment; Said determination module specifically is used for: based on the ingress port information that the entrained control VLAN ID of said Ethernet message is adopted when receiving said Ethernet message, confirm to transmit said Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: the ingress port information that is adopted when receiving said Ethernet message based on the entrained control VLAN ID of said Ethernet message at first, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port; When waiting of receiving of said receiver module transmitted the Ethernet message for the Ethernet message transmitted from the user side provider edge equipment; Said determination module specifically is used for: based on the device label of the entrained user side provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm to transmit said Ethernet message corresponding output port; Perhaps; Said determination module specifically is used for: at first based on the device label of the entrained user side provider edge equipment of the entrained control VLAN ID of said Ethernet message and said Ethernet message, confirm the control VLAN ID corresponding virtual exchange instance index entrained with said Ethernet message; Then, based on said Ethernet message entrained control VLAN ID and the virtual switch instance index of confirming, confirm to transmit said Ethernet message corresponding output port.
13. system according to claim 12 is characterized in that, said system also comprises:
User side equipment is used for sending the Ethernet message to said user side provider edge equipment, perhaps receives the Ethernet message that said user side provider edge equipment is transmitted;
The network side provider edge equipment is used for sending the Ethernet message to said provider edge equipment, perhaps receives the Ethernet message that said provider edge equipment is transmitted.
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| CN102035659B (en) * | 2010-12-09 | 2015-04-01 | 中兴通讯股份有限公司 | Method and device for broadcasting messages in domain dividing process |
| CN102185775B (en) * | 2011-05-10 | 2016-06-22 | 中兴通讯股份有限公司 | Identify method and the multiport Ethernet interface device of multiport Ethernet interface device port |
| CN102739498B (en) * | 2012-07-04 | 2015-09-30 | 瑞斯康达科技发展股份有限公司 | A kind of transmission method of hierarchical virtual private LAN service and system |
| CN103685022B (en) * | 2012-09-17 | 2016-12-21 | 杭州华三通信技术有限公司 | Message forwarding method and service provider network edge equipment |
| WO2016037326A1 (en) * | 2014-09-10 | 2016-03-17 | 华为技术有限公司 | Data forwarding method and apparatus, and access device |
| CN107317752B (en) * | 2016-04-27 | 2020-12-01 | 华为技术有限公司 | Method and device for forwarding data message |
| CN110224915B (en) * | 2018-03-01 | 2021-04-16 | 上海汽车集团股份有限公司 | Local network working method and system in vehicle-mounted hybrid network |
| CN108833472B (en) * | 2018-05-07 | 2019-09-17 | 杭州数梦工场科技有限公司 | System is established in the connection of cloud host |
| CN109756411B (en) * | 2018-12-17 | 2021-10-12 | 新华三技术有限公司成都分公司 | Message forwarding method and device, first VTEP device and storage medium |
| CN112688849B (en) * | 2020-12-25 | 2022-06-24 | 京信网络***股份有限公司 | QinQ configuration method, device, medium and communication equipment based on flow classification |
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