CN103888386A

CN103888386A - Extensible virtual local area network message transmission method, device and system

Info

Publication number: CN103888386A
Application number: CN201210564482.4A
Authority: CN
Inventors: 朱旭琪; 冯江平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Cloud Computing Technologies Co Ltd
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2014-06-25
Anticipated expiration: 2032-12-24
Also published as: WO2014101394A1; CN103888386B

Abstract

The invention discloses an extensible virtual local area network message transmission method, a device and a system, which can be applied to an open flow network. When an open flow switch receives a first message sent by a first virtual machine in the open flow network, a match of the first message is built according to the information of the first message; according to the match of the first message, a first flow table entry corresponding to the match of the first message is acquired; according to the first flow table entry, package of the extensible virtual local area network VXLAN is ensealed by the first message, and the packaged first message is sent to a second virtual machine; and the first virtual machine and the second virtual machine are located in different open flow switches or different physical machines. The problem that the existing OpenFlow network protocol does not fully support the VXLAN can be solved.

Description

Can expand the transmission method of virtual local area network packet and device, system

Technical field

The embodiment of the present invention relates to networking technology area, relates in particular to a kind of transmission method of expanding virtual local area network packet and device, system.

Background technology

Open flows (OpenFlow) technology can, by the Forwarding plane of network insertion switch or router, realize more advanced traffic management, especially in virtualized environment.The core concept of OpenFlow is by the complete script package forward process by switch or router control, is converted into the self-contained process being completed respectively by open flows switch (OpenFlow Switch) and open flows controller (OpenFlow Controller).

Can expand VLAN (Virtual Extensible Local Area Network, be called for short VXLAN) be a kind of technology that two layer message is encapsulated with three layer protocols, can expand three layers of scope double layer network, virtual machine can be moved within the scope of the three-layer network interconnecting, and do not need to change Internet protocol (Internet Protocol, be called for short IP) address and medium access control (Medium Access Control, be called for short MAC) address, the continuity of guarantee business.

At present, due to the not support to VXLAN in OpenFlow procotol, therefore, be unfavorable for the deployment of VXLAN in OpenFlow network, the application of VXLAN is limited.

Summary of the invention

The embodiment of the present invention provides a kind of transmission method of expanding virtual local area network packet and device, system, be applied in OpenFlow network, in order to solve the not support completely to VXLAN in existing OpenFlow procotol, cause being unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN.

First aspect, the invention provides a kind of transmission method of expanding virtual local area network packet, is applied in open flows network, comprising:

Open flows switch receives the first message of the first virtual machine transmission that is arranged in open flows network, according to the occurrence of the first message described in the information architecture of described the first message;

According to the occurrence of described the first message, obtain the first-class list item corresponding with the occurrence of described the first message;

According to described first-class list item, described the first message is sealed up and can be expanded VLAN VXLAN encapsulation, the first message after described encapsulation is sent to and is positioned at the second virtual machine;

Described the first virtual machine and described the second virtual machine are positioned in different open flows switches or different physical machine.

Based on first aspect, in the first implementation, according to the occurrence of described the first message, obtain the first-class list item corresponding with the occurrence of described the first message, comprising:

The stream table of open flows switch described in described open flows switch query, if determine in described stream table and preserve the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item, otherwise the occurrence of described the first message and described the first message is sent to open flows controller, so that described open flows controller sends the first-class list item corresponding with the occurrence of described the first message to described open flows switch.

The first implementation based on first aspect and first aspect, in the second implementation, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

The instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, and the occurrence of described first-class list item comprises the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place.

Second aspect, the invention provides a kind of transmission method of expanding virtual local area network packet, is applied in open flows network, comprising:

Open flows switch receives the second message that the second virtual machine sends, according to the occurrence of the second message described in the information architecture of described the second message;

According to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message;

Can expand VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network;

Based on second aspect, in the second implementation, according to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message, comprising:

The stream table of open flows switch described in described open flows switch query, if determine in described stream table and preserve the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item, otherwise the occurrence of described the second message and described the second message is sent to open flows controller, so that described open flows controller sends the second list item corresponding with the occurrence of described the second message to described open flows switch, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

The third aspect, the invention provides a kind of transmission method of expanding virtual local area network packet, is applied in open flows network, comprising:

Open flows controller receives the first message of open flows switch transmission and the occurrence of described the first message, described the first message is that described open flows switch receives and is arranged in the message that the first virtual machine of open flows network sends, and the occurrence of described the first message is described open flows switch according to the information architecture of described the first message;

Described first-class list item is sent to described open flows switch, so that described open flows switch is sealed up and can be expanded VLAN VXLAN encapsulation described the first message according to described first-class list item, the first message after described encapsulation is sent to the second virtual machine;

Based on the third aspect, in the first implementation, according to the occurrence of described the first message, obtain the first-class list item corresponding with the occurrence of described the first message, comprising:

Described open flows controller is inquired about the stream table of described open flows controller, if there is the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtains described first-class list item; If there is not the first-class list item corresponding with the occurrence of described the first message, build described first-class list item.

The first implementation based on the third aspect, in the second implementation, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

Based on first, second kind of implementation of the third aspect and the third aspect, in the third implementation, according to the occurrence of described the first message, after obtaining the first-class list item corresponding with the occurrence of described the first message, comprising:

Described open flows controller is sealed up and can be expanded VLAN VXLAN encapsulation described the first message according to described first-class list item, and the first message after described encapsulation is sent to the second virtual machine.

Fourth aspect, the invention provides a kind of transmission method of expanding virtual local area network packet, is applied in open flows network, comprising:

Open flows controller receives the second message of open flows switch transmission and the occurrence of described the second message, described the second message is that described open flows switch receives the message that the second virtual machine sends, and the occurrence of described the second message is described open flows switch according to the information architecture of described the second message;

Described second list item is sent to described open flows switch, so that described open flows switch can be expanded VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network;

Based on fourth aspect, in the first implementation, according to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message, comprising:

Described open flows controller is inquired about the stream table of described open flows controller, if there is the second list item corresponding with the occurrence of described the second message, from described stream table, obtains described second list item; If there is not the second list item corresponding with the occurrence of described the second message, build described second list item, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

The first implementation based on fourth aspect and fourth aspect, in the second implementation, according to the occurrence of described the second message, after obtaining the second list item corresponding with the occurrence of described the second message, comprising:

Described open flows controller encapsulates VXLAN described in described the second message deblocking according to described second list item, the second message that described solution is honored as a queen sends to described open flows switch, so that described open flows switch is stated the second message that solution is honored as a queen and sent to described the first virtual machine described.

Based on fourth aspect, in the third implementation, described open flows controller comprises after receiving the second message of described open flows switch transmission and the occurrence of described the second message:

Described open flows controller, according to the IP address of the VTEP at the MAC Address of the second virtual machine comprising in the information of described the second message and described the second virtual machine place, is set up the corresponding relation between the MAC Address of described the second virtual machine and the IP address of the VTEP at described the second virtual machine place.

The 5th aspect, the invention provides a kind of transmitting device of expanding virtual local area network packet, is positioned at open flows exchanger side, is applied in open flows network, comprising:

Build module, for receiving the first message of the first virtual machine transmission that is positioned at open flows network, according to the occurrence of the first message described in the information architecture of described the first message;

Acquisition module, for according to the occurrence of the first message of described structure module construction, obtains the first-class list item corresponding with the occurrence of described the first message;

Package module, seals up and can expand VLAN VXLAN encapsulation described the first message for the first-class list item obtaining according to described acquisition module, and the first message after described encapsulation is sent to the second virtual machine;

Based on the 5th aspect, in the first implementation, described acquisition module, specifically for inquiring about the stream table of described open flows switch, if determine in described stream table and preserve the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item, otherwise the occurrence of described the first message and described the first message is sent to open flows controller, so that described open flows controller sends the first-class list item corresponding with the occurrence of described the first message to described open flows switch.

Based on the first implementation of the 5th aspect and the 5th aspect, in the second implementation, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

The 6th aspect, the invention provides a kind of transmitting device of expanding virtual local area network packet, is positioned at open flows exchanger side, is applied in open flows network, comprising:

Build module, the second message sending for receiving the second virtual machine, according to the occurrence of the second message described in the information architecture of described the second message;

Acquisition module, for according to the occurrence of described the second message, obtains the second list item corresponding with the occurrence of described the second message;

Deblocking module, for expanding VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network;

Based on the 6th aspect, in the first implementation, described acquisition module, specifically for inquiring about the stream table of described open flows switch, if determine in described stream table and preserve the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item, otherwise the occurrence of described the second message and described the second message is sent to open flows controller, so that described open flows controller sends the second list item corresponding with the occurrence of described the second message to described open flows switch, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

The 7th aspect, the invention provides a kind of transmitting device of expanding virtual local area network packet, is positioned at open flows controller side, is applied in open flows network, comprising:

Receiver module, for receiving the first message of open flows switch transmission and the occurrence of described the first message, described the first message is that described open flows switch receives and is arranged in the message that the first virtual machine of open flows network sends, and the occurrence of described the first message is described open flows switch according to the information architecture of described the first message;

Acquisition module, for according to the occurrence of described the first message, obtains the first-class list item corresponding with the occurrence of described the first message;

Sending module, for described first-class list item is sent to described open flows switch, so that described open flows switch is sealed up and can be expanded VLAN VXLAN encapsulation described the first message according to described first-class list item, the first message after described encapsulation is sent to the second virtual machine;

Based on the 7th aspect, in the first implementation, described acquisition module specifically for inquiring about the stream table of described open flows controller, if there is the first-class list item corresponding with the occurrence of described the first message, obtains described first-class list item from described stream table; If there is not the first-class list item corresponding with the occurrence of described the first message, build described first-class list item.

Based on the first implementation of the 7th aspect and the 7th aspect, in the second implementation, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

Based on first, second kind of implementation of the 7th aspect and the 7th aspect, in the third implementation, described device also comprises:

Package module, for according to described first-class list item, described the first message being sealed up and can be expanded VLAN VXLAN encapsulation, sends to the second virtual machine by the first message after described encapsulation.

Eight aspect, the invention provides a kind of transmitting device of expanding virtual local area network packet, is positioned at open flows controller side, is applied in open flows network, comprising:

Receiver module, for receiving the second message of open flows switch transmission and the occurrence of described the second message, described the second message is that described open flows switch receives the message that the second virtual machine sends, and the occurrence of described the second message is described open flows switch according to the information architecture of described the second message;

Sending module, for described second list item is sent to described open flows switch, so that described open flows switch can be expanded VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network;

Based on eight aspect, in the first implementation, described acquisition module specifically for inquiring about the stream table of described open flows controller, if there is the second list item corresponding with the occurrence of described the second message, obtains described second list item from described stream table; If there is not the second list item corresponding with the occurrence of described the second message, build described second list item, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

Based on the first implementation of eight aspect and eight aspect, in the second implementation, described device also comprises:

Deblocking module, for VXLAN described in described the second message deblocking being encapsulated according to described second list item, the second message that described solution is honored as a queen sends to described open flows switch.

Based on eight aspect, in the third implementation, described device also comprises:

Set up module, for the MAC Address of the second virtual machine that comprises according to the information of described the second message and the IP address of the VTEP at described the second virtual machine place, set up the corresponding relation between the MAC Address of described the second virtual machine and the IP address of the VTEP at described the second virtual machine place.

The 9th aspect, the invention provides a kind of transmission system of expanding virtual local area network packet, is applied in open flows network, comprising: open flows switch and open flows controller;

Open flows switch comprises the transmitting device of the virtual local area the expanded network packet described in the 5th aspect and the 6th aspect;

Open flows controller comprises the transmitting device of the virtual local area the expanded network packet described in the 7th aspect and eight aspect.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of new type of action (add VXLAN encapsulation) or new occurrence newly, thereby while making open flows switch reception local virtual machine send message to the far-end virtual machine that belongs to a VXLAN together, the occurrence building according to message information, get corresponding stream list item, further, according to stream list item, message is sealed up to VXLAN encapsulation, and the message after encapsulation is sent to far-end virtual machine, can solve the not support to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

Brief description of the drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 1 provides for one embodiment of the invention;

Fig. 2 is the structural representation of the stream list item that specifies of OpenFlow agreement;

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 3 provides for another embodiment of the present invention;

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 4 provides for another embodiment of the present invention;

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 5 provides for another embodiment of the present invention;

The signaling diagram of the transmission method of the virtual local area the expanded network packet that Fig. 6 provides for another embodiment of the present invention;

The system architecture diagram of the transmission method application of the virtual local area the expanded network packet that Fig. 7 provides for the embodiment of the present invention;

The structural representation of the transmitting device of the virtual local area the expanded network packet that Fig. 8 provides for another embodiment of the present invention;

The structural representation of the transmitting device of the virtual local area the expanded network packet that Fig. 9 provides for another embodiment of the present invention;

The structural representation of the transmitting device of the virtual local area the expanded network packet that Figure 10 provides for another embodiment of the present invention;

The structural representation of the transmitting device of the virtual local area the expanded network packet that Figure 11 provides for another embodiment of the present invention;

The structural representation of the transmission system of the virtual local area the expanded network packet that Figure 12 provides for another embodiment of the present invention.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

The first virtual machine described in the following embodiment of the present invention and described the second virtual machine are positioned in different open flows switches or different physical machine, wherein, the first virtual machine is connected with the open flows switch described in the present embodiment, the second virtual machine is not connected with the open flows switch described in the present embodiment, physical machine can be common computer, work station or professional server etc., in this no limit.

Below the system architecture of various embodiments of the present invention application is described, the system architecture diagram of the transmission method application of the virtual local area the expanded network packet that Fig. 7 provides for the embodiment of the present invention, as shown in Figure 7, OpenFlow network system comprises open flows switch, open flows controller and the OpenFlow agreement for communicating by letter between open flows switch and open flows controller.Wherein, in open flows controller, be deployed with VXLAN endpoint of a tunnel (VXLAN Tunnel End Point, be called for short VTEP) control plane (VTEP Control Plane), in open flows switch, be deployed with VTEP data plane (VTEP Data Plane).

Add VXLAN encapsulation and go the type of action of VXLAN encapsulation to describe what apply in various embodiments of the present invention below, table 1 adds VXLAN encapsulation and removes the structure of the type of action of VXLAN encapsulation for what apply in various embodiments of the present invention, as shown in table 1:

The type of action that adds VXLAN encapsulation is OFPAT_PUSH_VXLAN, corresponding structure is ofp_action_push_vxlan or ofp_action_push, IP address and outside VLAN (the Virtual Local Area Network of the VTEP at far-end place in structure, are increased, be called for short VLAN) two parameters of VLAN mark ID, outside object IP address and outside VLAN field in respectively corresponding VXLAN encapsulation.Wherein, outside object IP address is the outer_ip parameter adding in table 1 in the structure of type of action of VXLAN encapsulation; Outside VLAN field is the outer_vlan_id parameter adding in table 1 in the structure of type of action of VXLAN encapsulation; For the situation that does not need to arrange outside VLAN, outside VLANID parameter can be omitted.

Removing the type of action of VXLAN encapsulation is OFPAT_POP_VXLAN, and corresponding structure is exactly Action structure head ofp_action_header, and wherein, ofp_action_header is the structure head of a kind of type of action of defining in openflow agreement; Go in the structure of type of action of VXLAN encapsulation without any extraneous information.

It should be noted that, in the structure of type of action that adds VXLAN encapsulation, only increase the ID(outer_vlan_id of outside object IP address (outer_ip) and outside VLAN), be because other VXLAN encapsulate required information all can be by configuring, table look-up, the mode such as calculating obtains, the present invention is not construed as limiting this.

Table 1:

Wherein, struct represents structure, type represents type, Length represents length, ethertype represents ethernet type, and outer_ip represents outside object IP address, and outer_vlan_id represents the mark ID of outside VLAN, pad represents filler, and (sizeof (struct ofp_action_push_vxlan)==16 represents that the shared byte number of structure is 16 bytes to OFP_ASSERT.(sizeof (struct ofp_action_header)==8 represents that the shared byte number of structure is 8 bytes to OFP_ASSERT.

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 1 provides for one embodiment of the invention, is applied in OpenFlow network, and as shown in Figure 1, the transmission method of the virtual local area the expanded network packet of the present embodiment can comprise:

101, open flows switch receives the first message of the first virtual machine transmission that is arranged in open flows network, according to the occurrence of the first message described in the information architecture of described the first message;

Wherein, include but not limited to source MAC, source IP, target MAC (Media Access Control) address and object IP in the information of the first message, the first message can be broadcasting packet, multicast message, unknown unicast message or known unicast message.

Suppose that the first virtual machine knows the MAC Address of the second virtual machine, the first message that the first virtual machine sends is known unicast message, and the information of the first message comprises the first virtual machine MAC Address, the first virtual machine IP, the second virtual machine MAC Address and the second virtual machine IP; Suppose that the first virtual machine do not know the MAC Address of the second virtual machine, the first message that the first virtual machine sends is broadcasting packet, be specifically as follows address resolution protocol (Address Resolution Protocol, be called for short ARP) request message, the information of the first message comprises the first virtual machine MAC Address, the first virtual machine IP, broadcast MAC Address and the second virtual machine IP.

In the present embodiment, the information that comprises the first message in the occurrence of described the first message, further, what in the occurrence of described the first message, also comprise the first message enters to hold port information.

102,, according to the occurrence of described the first message, obtain the first-class list item corresponding with the occurrence of described the first message;

For instance, in open flows switch, be preset with stream table, for preserving the stream list item not exceeding the time limit, Fig. 2 is the structural representation of the stream list item that specifies of OpenFlow agreement, as shown in Figure 2, and conventionally, stream list item comprises occurrence, priority, counter, instruction and overtime, wherein, occurrence comprises message information, for mating corresponding stream list item.Priority represents to flow the coupling priority of list item.Counters count is mated the message number of this stream list item.Instruction comprises action or behavior aggregate (English: Action or Action Set), further, can also comprise the information such as stream table of next stage inquiry in instruction.This stream list item of overtime expression is in the expired time of open flows switch.Conventionally, most important in a stream list item is exactly occurrence and instruction, is also to realize the key normally E-Packeting in OpenFlow network.

Further, open flows switch can be according to the occurrence of the first message, the stream table of inquiry open flows switch, if determine in stream table and preserve the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item, otherwise the occurrence of described the first message and described the first message is sent to open flows controller, so that described open flows controller sends the first-class list item corresponding with the occurrence of described the first message to described open flows switch.

103, according to described first-class list item, described the first message is sealed up and can be expanded VLAN VXLAN encapsulation, the first message after described encapsulation is sent to the second virtual machine.

Because the first virtual machine is arranged in open flows network, the first message that the first virtual machine sends is not sealed up VXLAN encapsulation, in order smoothly the first message to be sent to the second virtual machine of far-end, when specific implementation:

For example, on the basis of the Action type specifying in existing OpenFlow agreement, increase new Action type, wherein, newly-increased Action type comprises that adding VXLAN encapsulates, and adds VXLAN and is encapsulated as OFPAT_PUSH_VXLAN, wherein, add IP address and two parameters of outside VLAN mark ID of in the structure of type of action of VXLAN encapsulation, including but not limited to the VTEP at far-end place, outside object IP and outside VLAN field in respectively corresponding VXLAN encapsulation.For the situation that does not need to arrange outside VLAN, outside VLAN ID parameter can be omitted.

Therefore, the type of action in the instruction of first-class list item is for adding VXLAN encapsulation, described in add VXLAN encapsulation structure comprise the IP address of the VTEP at described the second virtual machine place.Accordingly, open flows switch is sealed up VXLAN encapsulation according to the type of action in the instruction of first-class list item (adding VXLAN encapsulation) to the first message, and the first message after encapsulation is sent to the second virtual machine.

Again for example, on the basis of the Action type specifying in existing OpenFlow agreement, new Action type and new occurrence are increased, wherein, newly-increased Action type comprises that adding VXLAN encapsulates, wherein, adding the structure of the type of action of VXLAN encapsulation can be existing for adding the universal architecture body ofp_action_push of head by existing OpenFlow agreement.Wherein, new occurrence OXM_OF_OUTER_IP is used for the IP address of the VTEP that represents far-end place.

Therefore, the instruction of first-class list item comprises that adding VXLAN encapsulates, and the occurrence of described first-class list item comprises the IP address of the VTEP at described the second virtual machine place.Accordingly, the IP address of the VTEP at the second virtual machine place that the type of action (adding VXLAN encapsulation) that open flows switch comprises according to the instruction of first-class list item and the occurrence of first-class list item comprise, described the first message is sealed up to VXLAN encapsulation, the first message after described encapsulation is sent to the second virtual machine.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of new type of action (add VXLAN encapsulation) or new occurrence newly, thereby while making open flows switch receive local virtual machine to far-end virtual machine transmission message, the occurrence building according to message information, get corresponding stream list item, further, according to stream list item, message is sealed up to VXLAN encapsulation, and the message after encapsulation is sent to far-end virtual machine, can solve the not support to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 3 provides for another embodiment of the present invention, is applied in OpenFlow network, as shown in Figure 3, comprising:

301, open flows switch receives the second message that the second virtual machine sends, according to the occurrence of the second message described in the information architecture of described the second message;

Wherein, include but not limited to source MAC, source IP, target MAC (Media Access Control) address and object IP in the information of the second message, the second message can be broadcasting packet, multicast message, unknown unicast message or known unicast message.

Suppose that the second virtual machine knows the MAC Address of the first virtual machine, source MAC, source IP, object MAC and object IP that the information of the second message that the second virtual machine sends to the first virtual machine comprises; Wherein, source MAC is that the second virtual machine MAC Address, source IP are that the second virtual machine IP, target MAC (Media Access Control) address are that the first virtual machine MAC Address, object IP are the first virtual machine IP.

In the present embodiment, the information that comprises the second message in the occurrence of described the second message, further, what in the occurrence of described the second message, also comprise the second message enters to hold port information.

302,, according to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message;

Particularly, open flows switch can be according to the occurrence of the second message, the stream table of inquiry open flows switch, if determine in stream table and preserve the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item, otherwise the occurrence of described the second message and described the second message is sent to open flows controller, so that described open flows controller sends the second list item corresponding with the occurrence of described the second message to described open flows switch.

303, can expand VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network;

Because the second message that the second virtual machine sends has been sealed up VXLAN encapsulation, in order smoothly the second message to be sent to the first virtual machine that is positioned at open flows network-external, when specific implementation:

For example, on the basis of the Action type specifying in existing OpenFlow agreement, increase new Action type, wherein, newly-increased Action type comprises VXLAN encapsulation OFPAT_POP_VXLAN, wherein, goes can not comprise any information in the structure of type of action of VXLAN encapsulation, and, the Action structure head that goes the structure of the type of action of VXLAN encapsulation to specify for existing OpenFlow agreement.

Therefore, type of action in the instruction of second list item is for going VXLAN encapsulation, accordingly, open flows switch is according to the type of action in the instruction of second list item (going VXLAN encapsulation) to the second message deblocking VXLAN encapsulation, and the second message that solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of the type of action that goes VXLAN encapsulation newly, thereby make open flows switch in the time receiving the message of sealing up VXLAN encapsulation that far-end virtual machine sends to local virtual machine, the occurrence building according to message information, obtain corresponding stream list item, further, according to the VXLAN encapsulation of going in stream list item, VXLAN described in described message deblocking is encapsulated, afterwards, the message that open flows switch is honored as a queen solution sends to the virtual machine that is arranged in OpenFlow network, can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 4 provides for another embodiment of the present invention, is applied in OpenFlow network, as shown in Figure 4, comprising:

401, open flows controller receives the first message of open flows switch transmission and the occurrence of described the first message.

Wherein, described the first message is that described open flows switch receives and is arranged in the message that the first virtual machine of local open flows network sends, and the occurrence of described the first message is described open flows switch according to the information architecture of described the first message.

402,, according to the occurrence of described the first message, obtain the first-class list item corresponding with the occurrence of described the first message;

Particularly, suppose that open flows controller is preset with stream table, in stream table, preserve the stream list item not exceeding the time limit, open flows controller is according to the occurrence of described the first message, inquiry stream table, if there is the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item; If there is not the first-class list item corresponding with the occurrence of described the first message, build described first-class list item.When specific implementation:

For example, open flows controller does not complete the address learning to VXLAN, while not setting up the corresponding relation between the home address of the second virtual machine and the IP address of the VTEP at the second virtual machine place, as shown in Figure 7, in open flows controller, be deployed with VTEP control plane, in VTEP control plane, be preset with the corresponding table of VXLAN VNI-multicast address, open flows controller is according to the MAC Address of the first virtual machine comprising in the information of the first message and IP address, by searching the corresponding table of VXLAN VNI-multicast address, obtain affiliated multicast address corresponding to VXLAN of the first virtual machine, IP address using the multicast address obtaining as the VTEP at the second virtual machine place, the home address of wherein said the second virtual machine comprises MAC Address and the IP address of described the second virtual machine.

Again for example, open flows controller has completed the address learning to VXLAN, and while setting up the corresponding relation between the home address of the second virtual machine and the IP address of the VTEP at the second virtual machine place, open flows controller directly obtains the IP address of the VTEP at the second virtual machine place according to the MAC Address of the second virtual machine; The home address of wherein said the second virtual machine comprises MAC Address and the IP address of described the second virtual machine.

Because the first virtual machine is positioned at open flows switch this locality, the first message that the first virtual machine sends is not sealed up VXLAN encapsulation, in order smoothly the first message to be sent to the second virtual machine of far-end, in the optional execution mode of one, on the basis of the Action type specifying in existing OpenFlow agreement, increase new Action type, wherein, newly-increased Action type comprises that adding VXLAN encapsulates OFPAT_PUSH_VXLAN, wherein, add IP address and two parameters of outside VLAN mark ID of in the structure of VXLAN encapsulation, including but not limited to the VTEP at far-end place, outside object IP and outside VLAN field in respectively corresponding VXLAN encapsulation.For the situation that does not need to arrange outside VLAN, outside VLAN ID parameter can be omitted.Therefore, type of action in the instruction of the first-class list item that open flows controller builds is for adding VXLAN encapsulation, and the IP address of the VTEP at the second virtual machine place is added in the outer_ip parameter in the structure that adds VXLAN encapsulation, outer_ip represents outside object IP.

In the optional execution mode of another kind, on the basis of the Action type specifying in existing OpenFlow agreement, new Action type and new occurrence are increased, wherein, newly-increased Action type comprises that adding VXLAN encapsulates, and wherein, the structure that adds VXLAN encapsulation can be existing for adding the universal architecture body of head by existing OpenFlow agreement, wherein, OpenFlow agreement is existing is ofp_action_push for the universal architecture body that adds head.Wherein, new occurrence OXM_OF_OUTER_IP is used for the IP address of the VTEP that represents far-end place.Therefore, the instruction of the first-class list item that open flows controller builds comprises that adding VXLAN encapsulates, and adds the IP address of the VTEP at the second virtual machine place in the occurrence of first-class list item to.

403, described first-class list item is sent to described open flows switch.

Accordingly, open flows switch is sealed up and can be expanded VLAN VXLAN encapsulation described the first message according to described first-class list item, and the first message after described encapsulation is sent to the second virtual machine.

Alternatively, open flows controller is sealed up and can be expanded VLAN VXLAN encapsulation described the first message according to described first-class list item, and the first message after described encapsulation is sent to the second virtual machine.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of the type of action and the new occurrence that add VXLAN encapsulation newly, message and occurrence thereof that open flows controller is sent according to open flows switch, build or definite stream list item corresponding with described occurrence, and stream list item is sent to open flows switch, the type of action that adds VXLAN encapsulation comprising in the stream list item that open flows switch is sent according to open flows controller, message is sealed up to VXLAN encapsulation, message after encapsulation is sent to the virtual machine of far-end, can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The schematic flow sheet of the transmission method of the virtual local area the expanded network packet that Fig. 5 provides for another embodiment of the present invention; Be applied in OpenFlow network, as shown in Figure 5, comprise:

501, open flows controller receives open flows and hands over the second message of switch transmission and the occurrence of described the second message.

Wherein, described the second message is that described open flows switch receives the message that the second virtual machine sends, and the occurrence of described the second message is described open flows switch according to the information architecture of described the second message.Because the second message is that the second virtual machine that is positioned at far-end sends, the second message has been sealed up VXLAN encapsulation.

Alternatively, open flows controller can be according to the VXLAN encapsulation of the second message, obtain the IP address of the VTEP at the second virtual machine place, according to the MAC Address of acquisition of information second virtual machine of the second message, set up the corresponding relation between the home address of described the second virtual machine and the IP address of the VTEP at described the second virtual machine place, thereby complete the address learning process of VXLAN; The home address of wherein said the second virtual machine comprises MAC Address and the IP address of described the second virtual machine.

502,, according to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message;

Open flows controller is inquired about the stream table of described open flows controller, if there is the second list item corresponding with the occurrence of described the second message, from described stream table, obtains described second list item;

If there is not the second list item corresponding with the occurrence of described the second message, build described second list item.When specific implementation:

The second message that the second virtual machine sends is to have sealed up VXLAN encapsulation, in order smoothly the second message to be sent to the first virtual machine that is positioned at open flows switch this locality, in the optional execution mode of one, on the basis of the Action type specifying in existing OpenFlow agreement, increase new Action type, wherein, newly-increased Action type comprises VXLAN encapsulation, go can not comprise any information in structure that the type of action of VXLAN encapsulation is corresponding, and, the Action structure head that goes the structure of VXLAN encapsulation to specify for existing OpenFlow agreement.Type of action in the instruction of the second list item that therefore, open flows controller builds is for going VXLAN encapsulation.

503, described second list item is sent to described open flows switch.

Accordingly, open flows switch can be expanded VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, and the second message that described solution is honored as a queen sends to the first virtual machine that is arranged in described open flows network.

Alternatively, the type of action comprising in the second list item that open flows controller can obtain according to step 502 goes VXLAN encapsulation, to described the second message deblocking VXLAN encapsulation, the second message that described solution is honored as a queen sends to open flows switch, makes the second message that open flows switch is honored as a queen solution send to the first virtual machine.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of the type of action that goes VXLAN encapsulation newly, the occurrence that open flows controller sends according to open flows switch is built or definite stream list item corresponding with described occurrence, and stream list item is sent to open flows switch, the VXLAN that goes comprising in the stream list item that open flows switch is sent according to open flows controller encapsulates, to described message deblocking VXLAN encapsulation, and the message that solution is honored as a queen sends to and is positioned at local virtual machine; Can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN; Can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The signaling diagram of the transmission method of the virtual local area the expanded network packet that Fig. 6 provides for another embodiment of the present invention; Be applied in OpenFlow network the system architecture diagram of the transmission method application of the virtual local area the expanded network packet that Fig. 7 provides for the embodiment of the present invention; As shown in Figure 6 and Figure 7, comprising:

601, the ARP request message that open flows switch sink virtual machine VM-1 sends.

As shown in Figure 7, OpenFlow network system comprises open flows switch, open flows controller and the OpenFlow agreement for communicating by letter between open flows switch and open flows controller.Wherein, in open flows controller, be deployed with VTEP control plane, in open flows switch, be deployed with VTEP data plane; VM-1 and virtual machine VM-3 belong to same VXLAN; VTEP under VM-1 is different from the VTEP under VM-3.

Conventionally,, before VM-1 communicates by letter with VM-3, if when VM-1 does not know the MAC Address of VM-3, VM-1 need to go to obtain by ARP request message the MAC Address of VM-3.Now, VM-1 broadcast arp request message, this ARP request message comprises transmitting terminal MAC Address and IP address, and object IP address, wherein, the IP address that object IP address is VM-3, transmitting terminal MAC Address is the MAC Address of VM-1, the IP address that transmitting terminal IP address is VM-1.

602, the occurrence of ARP request message and ARP request message is sent to open flows controller by open flows switch.

Open flows switch is according to the occurrence of the information architecture ARP request message of ARP request message, inquire about in the stream list item of buffer memory in local stream table and determine and do not have the stream list item corresponding with described occurrence, the occurrence of ARP request message and ARP request message is sent to open flows controller.

603, open flows controller builds the stream list item corresponding with the occurrence of ARP request message.

After open flows controller is received the occurrence of ARP request message and ARP request message, in the stream table of open flows controller, again mate.Conventionally also cannot find the stream list item of coupling, now, open flows controller builds the stream list item corresponding with the occurrence of ARP request message.When specific implementation:

Open flows controller is known according to the occurrence of ARP request message, is to send ARP request message from local VM-1 to far-end VM-3, and therefore, the Action that the instruction of the stream list item of structure comprises is OFPAT_PUSH_VXLAN and OFPAT_OUTPUT.As shown in Figure 7, in open flows controller, be deployed with VTEP control plane, in VTEP control plane, be preset with the corresponding table of VXLAN VNI-multicast address, therefore, open flows controller is by searching the corresponding table of VXLAN VNI-multicast address, obtain VXLAN is corresponding under VM-1 multicast address as the VTEP IP address under the opposite end in OFPAT_PUSH_VXLAN structure (VM-3), and the VTEP IP address under VM-3 is added in OFPAT_PUSH_VXLAN structure.

604, the stream list item of structure is sent to open flows switch by open flows controller.

Alternatively, open flows controller can directly be sealed up VXLAN encapsulation according to the instruction in the stream list item building to ARP request message, afterwards, the ARP request message after this encapsulation is sent.

605, the instruction in the stream list item that open flows switch sends according to open flows controller is sealed up VXLAN encapsulation to ARP request message and is sent.

Alternatively, the stream list item that open flows switch can send open flows controller is cached in the stream table of open flows switch.

606, open flows switch receives the arp reply message of sealing up VXLAN encapsulation returning from VM-3.

In the time that the VM-3 of far-end receives the ARP request message of VM-1 broadcast, determine that VM-1 need to communicate with VM-3, now, VM-3 can return to an arp reply message to VM-1, and wherein, arp reply message has been sealed up VXLAN encapsulation.

607, open flows switch is issued open flows controller by sealing up the arp reply message of VXLAN encapsulation and the occurrence of arp reply message.

After open flows switch is received the arp reply message of sealing up VXLAN encapsulation of beaming back from VM-3, extract the occurrence that VXLAN encapsulates the information architecture arp reply message of inner arp reply message, and by the stream list item of buffer memory in the stream table of open flows switch, if determine and do not have the stream list item corresponding with the occurrence of arp reply message, issue open flows controller by sealing up the arp reply message of VXLAN encapsulation and the occurrence of arp reply message.

608, open flows controller builds the stream list item corresponding with the occurrence of arp reply message.

The Action that the instruction of the stream list item that open flows controller builds according to the occurrence of arp reply message comprises is OFPAT_POP_VXLAN and OFPAT_OUTPUT.

Alternatively, the MAC Address of the VM-3 that open flows controller comprises according to arp reply message and VXLAN encapsulate the IP address of the VTEP under the VM-3 comprising, set up the corresponding relation between the IP address of the VTEP under the MAC Address of VM-3 and VM-3, and the corresponding relation between the IP address of the VTEP under the MAC Address of VM-3 and VM-3 is saved in the corresponding table of VMMAC-VTEP IP, complete the address learning process of VXLAN.

609, the stream list item of structure is sent to open flows switch by open flows controller.

610, the instruction in the stream list item that open flows switch sends according to open flows controller is to arp reply message deblocking VXLAN encapsulation, and the arp reply message that solution is honored as a queen sends to VM-1.

Particularly, open flows switch receives the stream list item that open flows controller sends, and wherein, the Action that the instruction of this stream list item comprises is OFPAT_POP_VXLAN and OFPAT_OUTPUT, in the structure of OFPAT_POP_VXLAN without any information.Open flows switch is according to the VXLAN encapsulation of OFPAT_POP_VXLAN deblocking arp reply message, and according to the structure of OFPAT_OUTPUT, the arp reply message that solution is honored as a queen sends to VM-1.

Alternatively, open flows switch receives the stream list item that open flows controller sends, and this stream list item can be cached in the stream table of open flows switch.

611, open flows switch receives the unicast message that VM-1 sends.

When VM-1 receives the arp reply message that VM-3 returns, can obtain the MAC Address of VM-3, afterwards, VM-1 can send unicast message to VM-3.

612, the occurrence of unicast message and unicast message is issued open flows controller by open flows switch.

Open flows switch is received when VM-1 mails to the unicast message of VM-3, according to the occurrence of the information architecture unicast message of unicast message, in inquiry open flows switch stream table, in the stream list item of buffer memory, whether there is the stream list item of coupling, suppose that the stream list item of the coupling of buffer memory is overtime, cannot determine the stream list item of coupling.Open flows switch can be issued open flows controller by the occurrence of unicast message and unicast message.

613, open flows controller builds stream list item according to the occurrence of unicast message.

Whether the occurrence of the unicast message that open flows controller sends according to open flows switch, there is corresponding stream list item in the stream table of inquiry open flows controller, if exist, this stream list item directly sent to open flows switch; If there is not corresponding stream list item, build the stream list item corresponding with the occurrence of unicast message, be specially:

Open flows controller is known according to the occurrence of unicast message, is to send unicast message from local VM-1 to far-end VM-3, and therefore, the Action that the instruction of the stream list item of structure comprises is OFPAT_PUSH_VXLAN and OFPAT_OUTPUT.The corresponding table of VM MAC-VTEP IP of setting up by searching open flows controller, the IP address of the VTEP under acquisition VM-3, is filled up to the IP address of the VTEP under VM-3 in the outer_ip parameter of OFPAT_PUSH_VXLAN structure.

614, the stream list item of structure is sent to open flows switch by open flows controller.

615, the instruction in the stream list item that open flows switch sends according to open flows controller is sealed up VXLAN encapsulation to unicast message, and the unicast message after encapsulation is sent to VM-3.

Alternatively, the stream list item that open flows switch can send open flows controller is cached in stream table.

Further, in the time that open flows switch receives VM-3 and sends to the unicast message of sealing up VXLAN encapsulation of VM-1, according to the occurrence corresponding to information architecture of unicast message of sealing up VXLAN encapsulation.First in open flows switch stream table, whether the stream list item of buffer memory coupling there is corresponding stream list item, if do not exist, unicast message and the corresponding occurrence thereof of sealing up VXLAN encapsulation is issued to open flows controller.

Open flows controller is according to unicast message and the corresponding occurrence thereof of sealing up VXLAN encapsulation, searches in the stream table of open flows controller whether have corresponding stream list item, if exist, directly the stream list item of coupling sent to open flows switch; If do not exist, build new stream list item, the Action that new stream list item comprises is OFPAT_POP_VXLAN and OFPAT_OUTPUT, and newly-built stream list item is sent to open flows switch.

Open flows switch can this newly-built stream list item of buffer memory, and according to the VXLAN encapsulation of the Action deblocking unicast message in this newly-built stream list item, and the unicast message that solution is honored as a queen sends to VM-1.

By embodiment illustrated in fig. 6, to the unicast communication between VM-1 and VM-3, set up corresponding stream list item, and in open flows switch buffer memory.If between VM-1 and VM-3 again when unicast communication, open flows switch receives when not sealing up VXLAN encapsulation or having sealed up the message of VXLAN encapsulation, can be in the stream table of open flows switch find the stream list item of coupling in the stream list item of buffer memory, and according to Action in the stream list item of coupling, message is sealed up to VXLAN encapsulation or deblocking VXLAN encapsulates and forwards.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of type of action (add VXLAN encapsulation and go VXLAN encapsulation) newly, the occurrence that open flows controller sends according to open flows switch is built or definite stream list item corresponding with described occurrence, and stream list item is sent to open flows switch, make open flows switch seal up VXLAN encapsulation or deblocking VXLAN encapsulation according to the instruction in the stream list item of open flows controller transmission to described message, and send the message of sealing up after VXLAN encapsulation or deblocking VXLAN encapsulation virtual machine or the local virtual machine to far-end, can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The structural representation of the transmitting device of the virtual local area the expanded network packet that Fig. 8 provides for another embodiment of the present invention; Be positioned at open flows exchanger side, be applied in open flows network, as shown in Figure 8, specifically comprise:

Build module 81, the first message sending for receiving the first virtual machine, according to the occurrence of the first message described in the information architecture of described the first message;

Acquisition module 82, for according to the occurrence of the first message of described structure module construction, obtains the first-class list item corresponding with the occurrence of described the first message;

Package module 83, seals up and can expand VLAN VXLAN encapsulation described the first message for the first-class list item obtaining according to described acquisition module, and the first message after described encapsulation is sent to the second virtual machine;

For instance, acquisition module 82, specifically for inquiring about the stream table of described open flows switch, if determine in described stream table and preserve the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item, otherwise the occurrence of described the first message and described the first message is sent to open flows controller, so that described open flows controller sends the first-class list item corresponding with the occurrence of described the first message to described open flows switch.

Wherein, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

In further example, build module 81, the second message also sending for receiving the second virtual machine, according to the occurrence of the second message described in the information architecture of described the second message;

Acquisition module 82, also, for according to the occurrence of described the second message, obtains the second list item corresponding with the occurrence of described the second message;

Described device also comprises:

Deblocking module 84, for expanding VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine;

For instance, acquisition module 82, concrete also for inquiring about the stream table of described open flows switch, if determine in described stream table and preserve the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item, otherwise the occurrence of described the second message and described the second message is sent to open flows controller, so that described open flows controller sends the second list item corresponding with the occurrence of described the second message to described open flows switch.

Wherein, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of type of action (add VXLAN encapsulation and go VXLAN encapsulation) or new occurrence newly, make open flows switch build occurrence according to the message information receiving, obtain corresponding stream list item according to occurrence, further according to the instruction in stream list item, described message is sealed up to VXLAN encapsulation or deblocking VXLAN encapsulation, and send the message of sealing up after VXLAN encapsulation or deblocking VXLAN encapsulation to far-end virtual machine or local virtual machine; Can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN; Can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The structural representation of the transmitting device of the virtual local area the expanded network packet that Fig. 9 provides for another embodiment of the present invention; Be positioned at open flows controller side, be applied in open flows network, as shown in Figure 9, specifically comprise:

Receiver module 91, for receiving the first message of open flows switch transmission and the occurrence of described the first message, described the first message is that described open flows switch receives the message that the first virtual machine sends, and the occurrence of described the first message is described open flows switch according to the information architecture of described the first message;

Acquisition module 92, for according to the occurrence of described the first message, obtains the first-class list item corresponding with the occurrence of described the first message;

Sending module 93, for described first-class list item is sent to described open flows switch, so that described open flows switch is sealed up and can be expanded VLAN VXLAN encapsulation described the first message according to described first-class list item, the first message after described encapsulation is sent to the second virtual machine;

For instance, acquisition module 92 specifically for inquiring about the stream table of described open flows controller, if there is the first-class list item corresponding with the occurrence of described the first message, obtains described first-class list item from described stream table; If there is not the first-class list item corresponding with the occurrence of described the first message, build described first-class list item.

Described device also comprises:

Package module 94, for according to described first-class list item, described the first message being sealed up and can be expanded VLAN VXLAN encapsulation, sends to the second virtual machine by the first message after described encapsulation.

In further example, receiver module 91, also for receiving the second message of open flows switch transmission and the occurrence of described the second message, described the second message is that described open flows switch receives the message that the second virtual machine sends, and the occurrence of described the second message is described open flows switch according to the information architecture of described the second message;

Acquisition module 92, for according to the occurrence of described the second message, obtains the second list item corresponding with the occurrence of described the second message;

Sending module 93, for described second list item is sent to described open flows switch, so that described open flows switch can be expanded VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine;

Wherein, acquisition module 92, concrete also for inquiring about the stream table of described open flows controller, if there is the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item; If there is not the second list item corresponding with the occurrence of described the second message, build described second list item.

For instance, described device also comprises: deblocking module 95, for VXLAN described in described the second message deblocking being encapsulated according to described second list item, the second message that described solution is honored as a queen sends to described open flows switch.

For instance, described device also comprises: set up module 96, the MAC Address of the second virtual machine comprising for the information of described the second message of receiving according to receiver module 91 and the IP address of the VTEP at described the second virtual machine place, set up the corresponding relation between the MAC Address of described the second virtual machine and the IP address of the VTEP at described the second virtual machine place.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of type of action (add VXLAN encapsulation and go VXLAN encapsulation) or new occurrence newly, the occurrence that open flows controller sends according to open flows switch is built or definite stream list item corresponding with described occurrence, and stream list item is sent to open flows switch, make open flows switch seal up VXLAN encapsulation or deblocking VXLAN encapsulation according to the instruction in the stream list item of open flows controller transmission to described message, and send the message of sealing up after VXLAN encapsulation or deblocking VXLAN encapsulation virtual machine or the local virtual machine to far-end, can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.The structural representation of the transmitting device of the virtual local area the expanded network packet that Figure 10 provides for another embodiment of the present invention; Be specifically as follows open flows switch, be applied in open flows network, as shown in figure 10, open flows switch specifically comprises: processor, memory and communication bus, processor is connected with memory by communication bus, preserves realization and can expand the instruction of the transmission method of virtual local area network packet in memory, further, open flows switch specifically also comprises communication interface, for example, communicates by letter with other network element devices (open flows controller) by communication interface.

In the time that processor is transferred the instruction in memory, carry out following steps:

Receive the first message that the first virtual machine sends, according to the occurrence of the first message described in the information architecture of described the first message;

According to the occurrence of the first message of described structure module construction, obtain the first-class list item corresponding with the occurrence of described the first message;

The first-class list item obtaining according to described acquisition module is sealed up and can be expanded VLAN VXLAN encapsulation described the first message, and the first message after described encapsulation is sent to the second virtual machine;

For instance, according to the occurrence of the first message of described structure module construction, obtain the first-class list item corresponding with the occurrence of described the first message, comprising:

Inquire about the stream table of described open flows switch, if determine in described stream table and preserve the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item, otherwise the occurrence of described the first message and described the first message is sent to open flows controller, so that described open flows controller sends the first-class list item corresponding with the occurrence of described the first message to described open flows switch.

In the time that processor is transferred the instruction in memory, also carry out following steps:

Receive the second message that the second virtual machine sends, according to the occurrence of the second message described in the information architecture of described the second message;

Can expand VLAN VXLAN encapsulation according to described second list item to described the second message deblocking, the second message that described solution is honored as a queen sends to the first virtual machine;

For instance, according to the occurrence of the second message of described structure module construction, obtain the second list item corresponding with the occurrence of described the second message, comprising:

Inquire about the stream table of described open flows switch, if determine in described stream table and preserve the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item, otherwise the occurrence of described the second message and described the second message is sent to open flows controller, so that described open flows controller sends the second list item corresponding with the occurrence of described the second message to described open flows switch.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of type of action (add VXLAN encapsulation and go VXLAN encapsulation) or new occurrence newly, make open flows switch build occurrence according to the message information receiving, obtain corresponding stream list item according to occurrence, further according to the instruction in stream list item, described message is sealed up to VXLAN encapsulation or deblocking VXLAN encapsulation, and send virtual machine or the local virtual machine of sealing up the message remote after VXLAN encapsulation or deblocking VXLAN encapsulation; Can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN; Can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The structural representation of the transmitting device of the virtual local area the expanded network packet that Figure 11 provides for another embodiment of the present invention; Be specifically as follows open flows controller, be applied in open flows network, as shown in figure 11, open flows controller specifically comprises: processor, memory and communication bus, processor is connected with memory by communication bus, preserves realization and can expand the instruction of the transmission method of virtual local area network packet in memory, further, open flows controller specifically also comprises communication interface, for example, communicates by letter with other network element devices (open flows switch) by communication interface.

Receive the first message of open flows switch transmission and the occurrence of described the first message, described the first message is that described open flows switch receives the message that the first virtual machine sends, and the occurrence of described the first message is described open flows switch according to the information architecture of described the first message;

For instance, according to the occurrence of described the first message, obtain the first-class list item corresponding with the occurrence of described the first message, comprising:

Inquire about the stream table of described open flows controller, if there is the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item; If there is not the first-class list item corresponding with the occurrence of described the first message, build described first-class list item.

In further example, according to the occurrence of described the first message, after obtaining the first-class list item corresponding with the occurrence of described the first message, comprising:

According to described first-class list item, described the first message is sealed up and can be expanded VLAN VXLAN encapsulation, the first message after described encapsulation is sent to the second virtual machine.

In further example, in the time that processor is transferred the instruction in memory, carry out following steps:

Receive the second message of open flows switch transmission and the occurrence of described the second message, described the second message is that described open flows switch receives the message that the second virtual machine sends, and the occurrence of described the second message is described open flows switch according to the information architecture of described the second message;

Wherein, according to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message, comprising:

Inquire about the stream table of described open flows controller, if there is the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item; If there is not the second list item corresponding with the occurrence of described the second message, build described second list item.

For instance, according to the occurrence of described the second message, after obtaining the second list item corresponding with the occurrence of described the second message, comprising:

According to described second list item, to VXLAN encapsulation described in described the second message deblocking, the second message that described solution is honored as a queen sends to described open flows switch.

For instance, after receiving the second message of open flows switch transmission and the occurrence of described the second message, comprising:

According to the IP address of the VTEP at the MAC Address of the second virtual machine comprising in the information of described the second message and described the second virtual machine place, set up the corresponding relation between the MAC Address of described the second virtual machine and the IP address of the VTEP at described the second virtual machine place.

The embodiment of the present invention adopts on the basis of the Action type specifying in existing OpenFlow agreement, increase the technological means of type of action (add VXLAN encapsulation and go VXLAN encapsulation) or new occurrence newly, the occurrence that open flows controller sends according to open flows switch is built or definite stream list item corresponding with described occurrence, and stream list item is sent to open flows switch, make open flows switch seal up VXLAN encapsulation or deblocking VXLAN encapsulation according to the instruction in the stream list item of open flows controller transmission to described message, and send the message of sealing up after VXLAN encapsulation or deblocking VXLAN encapsulation virtual machine or the local virtual machine to far-end, can solve the not support completely to VXLAN in existing OpenFlow procotol, what cause is unfavorable for the deployment of VXLAN in OpenFlow network, the limited problem of application of VXLAN, can make full use of the advantage of existing OpenFlow agreement, keeping under unified machine-processed prerequisite, the completely support of the OpenFlow having realized to VXLAN, reduce the difficulty that VXLAN disposes in OpenFlow network, open up the application of VXLAN, enrich OpenFlow agreement, be conducive to further developing of agreement.

The structural representation of the transmission system of the virtual local area the expanded network packet that Figure 12 provides for another embodiment of the present invention, as shown in figure 12, comprising: open flows switch 121 and open flows controller 122;

Open flows switch 121 is the transmitting device of the virtual local area the expanded network packet as described in Fig. 8 or Figure 10, and detailed content is with reference to the associated description in the transmitting device of the virtual local area the expanded network packet described in figure 8 or Figure 10;

Open flows controller 122 is the transmitting device of the virtual local area the expanded network packet as described in Fig. 9 or Figure 11, and detailed content is with reference to the associated description in the transmitting device of the virtual local area the expanded network packet described in figure 9 or Figure 11.

Those skilled in the art can be well understood to, for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.

The specific descriptions of above embodiment are the situations at the same network segment and same VXLAN based on the first virtual machine and the second virtual machine, are still suitable for for the present invention of other situations.For example, if the first virtual machine and the second virtual machine are in different segment, the first virtual machine can directly not obtain the MAC Address of the second virtual machine by ARP request message, will first obtain the MAC Address of the IP gateway of the first virtual machine, and MAC Address using the MAC Address of the IP gateway of the first virtual machine as the second virtual machine of the present invention.If the first virtual machine is arranged in non-VXLAN from the second virtual machine at different VXLAN or the second virtual machine, described open flows switch and controller also can directly not obtain the IP address of the second virtual machine place VTEP, but obtain the IP address of VXLAN gateway, and using the IP address of VXLAN gateway as the IP address of the second virtual machine place VTEP of the present invention.In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.

In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.

The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprises that some instructions are in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), the various media that can be program code stored such as random access memory (Random Access Memory, be called for short RAM), magnetic disc or CD.

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. the transmission method that can expand virtual local area network packet, is applied in open flows network, it is characterized in that, comprising:

According to described first-class list item, described the first message is sealed up and can be expanded VLAN VXLAN encapsulation, the first message after described encapsulation is sent to the second virtual machine;

2. method according to claim 1, is characterized in that, according to the occurrence of described the first message, obtains the first-class list item corresponding with the occurrence of described the first message, comprising:

3. method according to claim 1 and 2, it is characterized in that, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

4. the transmission method that can expand virtual local area network packet, is applied in open flows network, it is characterized in that, comprising:

5. method according to claim 4, is characterized in that, according to the occurrence of described the second message, obtains the second list item corresponding with the occurrence of described the second message, comprising:

6. the transmission method that can expand virtual local area network packet, is applied in open flows network, it is characterized in that, comprising:

7. method according to claim 6, is characterized in that, according to the occurrence of described the first message, obtains the first-class list item corresponding with the occurrence of described the first message, comprising:

8. method according to claim 7, it is characterized in that, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

9. according to the method described in claim 6-8 any one, it is characterized in that, according to the occurrence of described the first message, after obtaining the first-class list item corresponding with the occurrence of described the first message, comprising:

10. the transmission method that can expand virtual local area network packet, is applied in open flows network, it is characterized in that, comprising:

11. methods according to claim 10, is characterized in that, according to the occurrence of described the second message, obtain the second list item corresponding with the occurrence of described the second message, comprising:

12. according to the method described in claim 10 or 11, it is characterized in that, according to the occurrence of described the second message, after obtaining the second list item corresponding with the occurrence of described the second message, comprising:

13. methods according to claim 10, is characterized in that, described open flows controller comprises after receiving the second message of described open flows switch transmission and the occurrence of described the second message:

Can expand the transmitting device of virtual local area network packet for 14. 1 kinds, be positioned at open flows exchanger side, be applied in open flows network, it is characterized in that, comprise:

15. devices according to claim 14, it is characterized in that, described acquisition module, specifically for inquiring about the stream table of described open flows switch, if determine in described stream table and preserve the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item, otherwise the occurrence of described the first message and described the first message is sent to open flows controller, so that described open flows controller sends the first-class list item corresponding with the occurrence of described the first message to described open flows switch.

16. according to the device described in claims 14 or 15, it is characterized in that, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

Can expand the transmitting device of virtual local area network packet for 17. 1 kinds, be positioned at open flows exchanger side, be applied in open flows network, it is characterized in that, comprise:

18. devices according to claim 17, it is characterized in that, described acquisition module, specifically for inquiring about the stream table of described open flows switch, if determine in described stream table and preserve the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item, otherwise the occurrence of described the second message and described the second message is sent to open flows controller, so that described open flows controller sends the second list item corresponding with the occurrence of described the second message to described open flows switch, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

Can expand the transmitting device of virtual local area network packet for 19. 1 kinds, be positioned at open flows controller side, be applied in open flows network, it is characterized in that, comprise:

20. devices according to claim 19, it is characterized in that, described acquisition module, specifically for inquiring about the stream table of described open flows controller, if there is the first-class list item corresponding with the occurrence of described the first message, from described stream table, obtain described first-class list item; If there is not the first-class list item corresponding with the occurrence of described the first message, build described first-class list item.

21. according to the device described in claim 19 or 20, it is characterized in that, the instruction of described first-class list item comprises the type of action that adds VXLAN encapsulation, described in add the type of action of VXLAN encapsulation structure comprise the IP address of the VXLAN endpoint of a tunnel VTEP at described the second virtual machine place; Or

22. according to the device described in claim 19-21 any one, it is characterized in that, also comprises:

Can expand the transmitting device of virtual local area network packet for 23. 1 kinds, be positioned at open flows controller side, be applied in open flows network, it is characterized in that, comprise:

24. devices according to claim 23, it is characterized in that, described acquisition module, specifically for inquiring about the stream table of described open flows controller, if there is the second list item corresponding with the occurrence of described the second message, from described stream table, obtain described second list item; If there is not the second list item corresponding with the occurrence of described the second message, build described second list item, the instruction of described second list item comprises the type of action of VXLAN encapsulation.

25. according to the device described in claim 23 or 24, it is characterized in that, also comprises:

26. devices according to claim 23, is characterized in that, also comprise:

Can expand the transmission system of virtual local area network packet for 27. 1 kinds, be applied in open flows network, it is characterized in that, comprise: open flows switch and open flows controller;

Open flows switch comprises the transmitting device of the virtual local area the expanded network packet as described in transmitting device and the 17-18 any one of the virtual local area the expanded network packet as described in claim 14-16 any one;

Open flows controller comprises the transmitting device of the virtual local area the expanded network packet as described in transmitting device and the 23-26 any one of the virtual local area the expanded network packet as described in claim 19-22 any one.