WO2016091014A1

WO2016091014A1 - Data exchange method and system based on edge virtual bridging, and storage medium

Info

Publication number: WO2016091014A1
Application number: PCT/CN2015/092425
Authority: WO
Inventors: 杨国芳
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-12-10
Filing date: 2015-10-21
Publication date: 2016-06-16
Also published as: CN105743791A

Abstract

Disclosed is a data exchange method based on edge virtual bridging (EVB). A data packet sent by a source host is received, the data packet carries a Medium Access Control (MAC) address of a target host; it is determined, according to the MAC address of the target host, whether the source host and the target host are located in a same hardware platform; and when it is determined that the source host and the target host are located in a same hardware platform, the data packet is directly sent to the target host. Also disclosed are a data exchange system based on EVB and a computer storage medium.

Description

Data exchange method, system and storage medium based on edge virtual bridging

Technical field

The present invention relates to data processing technologies, and in particular, to a data exchange method, system, and computer storage medium based on Edge Virtual Bridging (EVB).

Background technique

The core idea of system virtualization technology is to use virtualization software to virtualize one or more virtual machines (VMs) on a physical machine. The so-called virtual machine refers to running in an isolated environment using system virtualization technology. And a logical computer system with complete hardware functions; system virtualization technology is widely used in servers in computer networks because of its advantages of improving server resource utilization and improving system reliability.

At present, the server adopts system virtualization technology to configure multiple virtual machines. Virtual machines need to communicate through a network with data exchange function. However, since the network interfaces of the virtual machines are virtual, they cannot directly pass data exchange. Functional hardware entities are interconnected.

The data exchange between the virtual machines in the existing server is usually virtualized by the hardware entity device having the data exchange function, that is, the virtual switch (Vswitch) 16 is configured in the server, so that when the virtual machines communicate with each other, The network interface of the virtual machine can be interconnected through the virtual switch directly through the hardware entity device. The composition of the server implemented by the virtual switch is as shown in FIG. 1 , and the communication between the virtual machine VM 13 and the virtual machine VM 15 is performed. This is done directly through the Vswitch16 configured in the server 10. However, as the virtual machine data increases, the virtual switch consumes a large amount of processor (CPU) resources and memory resources in the server. As a result, the performance of the virtual machine is degraded; and it is inconvenient to monitor network traffic between virtual machines. .

In order to solve the above problems caused by the use of virtual switches for data exchange, the Institute of Electrical and Electronics Engineers (IEEE) proposed a new technical standard - EVB, based on EVB virtual machine switching system The composition of the structure is shown in Figure 2. The basic idea of EVB technology is that all traffic from the virtual machine will be forwarded to the adjacent external switch 26, even if the traffic between the virtual machines in the same server 20, such as the virtual machine VM24 and The traffic between the virtual machines VM25 is also handed over to the external switch 26 of the physical access for table lookup processing, and then returned to the server 20, and the traffic is made a 180 degree turn, forming a so-called "issuing card bend" mode; Although the method can improve the resource utilization of the CPU and facilitate the supervision of the network traffic between the virtual machines, the external switch 26 realizes the sensing, control, and data exchange targeting the virtual machine, and the virtual machine in the same server. The traffic between the servers 20 and the external switch 26 is transmitted twice, wasting network bandwidth resources. And increase the transmission delay of data packets.

Summary of the invention

In view of this, the embodiment of the present invention is to provide an EVB-based data exchange method, system, and computer storage medium, which can not only improve the utilization of network bandwidth resources, but also reduce the transmission delay of data packets.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

An embodiment of the present invention provides an EVB-based data exchange method, where the method includes:

Receiving a data packet sent by the source host, where the data packet carries a Media Access Control (MAC) address of the target host;

Determining whether the source host and the target host are on the same hardware platform according to the MAC address of the target host;

When it is determined that it is on the same hardware platform, the data packet is directly sent to the target host.

In the above solution, the method further includes:

When the data platform is determined to be on a different hardware platform, the corresponding virtual channel identifier is carried in the datagram. The data packet is sent to the target host through an external switch.

In the foregoing solution, after the receiving the data packet sent by the source host, the method further includes:

Verifying the legality of the data message;

When the validity of the data packet is verified, it is determined whether the source host and the target host are on the same hardware platform according to the MAC address of the target host.

In the above solution, the determining whether the source host and the target host are on the same hardware platform according to the MAC address of the target host includes:

Query the pre-stored MAC address table according to the MAC address of the target host to determine whether the source host and the target host are on the same hardware platform.

Based on the foregoing method, an embodiment of the present invention provides an EVB-based data exchange system, where the system includes: a receiving module, a determining module, and a sending module;

The receiving module is configured to receive a data packet sent by the source host, where the data packet carries a MAC address of the target host;

The determining module is configured to determine, according to the MAC address of the target host, whether the source host and the target host are on the same hardware platform;

The sending module is configured to send the data packet directly to the target host when the determining module determines that it is in the same hardware platform.

In the foregoing solution, the sending module is further configured to: when the determining module determines that the hardware platform is in a different hardware platform, the corresponding virtual channel identifier is carried in the data packet, and the data packet is sent by using an external switch. Give the target host.

In the above solution, the server further includes:

The verification module is configured to verify the validity of the data packet after the receiving module receives the data packet sent by the source host;

When the validity of the data packet is verified, the determining module determines whether the source host and the target host are on the same hardware platform according to the MAC address of the target host.

In the above solution, the determining module is configured to query the pre-stored MAC address table according to the MAC address of the target host, and determine whether the source host and the target host are on the same hardware platform.

An embodiment of the present invention provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to execute the EVB-based data exchange method described above.

The EVB-based data exchange method, system, and computer storage medium provided by the embodiment of the present invention receive a data packet sent by the source host, where the data packet carries the MAC address of the target host, and is determined according to the MAC address of the target host. Whether the source host and the target host are on the same hardware platform; when the data platform is determined to be in the same hardware platform, the data packet is directly sent to the target host, and the data packet is not sent through the external switch; When the device is on the same hardware platform, the data packet can be directly sent to the target host through the external switch. This can not only avoid unnecessary network bandwidth resource overhead, but also improve the utilization of network bandwidth resources. Reduce the transmission delay of data packets.

DRAWINGS

1 is a schematic structural diagram of a server implemented by using a virtual switch in the prior art;

2 is a schematic structural diagram of a structure of a virtual machine switching system based on an EVB in the prior art;

3 is a schematic flowchart of an implementation process of an EVB-based data exchange method according to an embodiment of the present invention;

4 is a schematic structural diagram of a structure of a data exchange system based on an EVB according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a virtual machine switching system based on an EVB according to an embodiment of the present invention.

detailed description

In the embodiment of the present invention, the data packet sent by the source host is received, where the data packet carries the MAC address of the target host, and determines whether the source host and the target host are on the same hardware platform according to the MAC address of the target host; The data message is straight when the hardware platform In this manner, the embodiment of the present invention can not only avoid unnecessary network bandwidth resource overhead, but also reduce the transmission delay of data packets.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 3, the EVB-based data exchange process provided by the embodiment of the present invention is applied to a server, and specific implementation steps include:

Step S300: Receive a data packet sent by the source host, where the data packet carries the MAC address of the target host.

Here, the server is usually configured with multiple virtual machines, and each virtual machine can be run as a real host. All virtual machines configured in the server are on the same hardware platform, and can use or share the same hardware platform resources, thereby improving Resource utilization of the server.

Here, the source host is a virtual machine in the server; the target host may be a virtual machine on the same hardware platform as the source host, that is, the source host and the target host are different virtual machines in the same server. The target host may also be a virtual machine on a different hardware platform than the source host, that is, the source host and the target host are virtual machines in different servers.

In step S301, the validity of the data packet is verified. If the validity of the data packet is verified, the process proceeds to step S302. If the validity of the data packet fails to be verified, the process ends. Secondary processing flow.

Here, when the validity verification of the data packet fails, the data packet may be directly discarded, and the current processing flow is ended.

Step S302: Determine whether the source host and the target host are on the same hardware platform according to the MAC address of the target host, and if it is determined to be in the same hardware platform, go to step S303; if it is determined to be in a different hardware platform, go to step S304.

Here, the MAC address of the target host is first extracted from the packet header of the data packet, and the pre-stored MAC address table is queried according to the MAC address of the target host to determine whether the source host and the target host are on the same hardware platform.

Here, the MAC address table includes the MAC address of the target host and the network segment to which it belongs. How to query the pre-stored MAC address table according to the MAC address of the target host, and determine whether the source host and the target host are on the same hardware platform. Technology, repetitions are not repeated here.

Step S303: The data packet is directly sent to the target host, and does not need to be sent through an external switch, and the current processing flow is ended.

Step S304: The corresponding virtual channel identifier is carried in the data packet, and the data packet is sent to the target host by using an external switch.

In the embodiment of the present invention, it is determined whether the source host and the target host are on the same hardware platform according to the MAC address of the target host, and when the data platform is determined to be in the same hardware platform, the data packet is directly sent to the target host, and the data is not needed. The packet is sent to the external switch and then returned from the external switch to the target host inside the server. Therefore, the traffic between the virtual machine in the same server in the prior art needs to be transmitted twice between the server and the external switch. The embodiment of the present invention can not only avoid unnecessary network bandwidth resource overhead, but also improve the utilization of network bandwidth resources; and can also reduce the transmission delay of data packets;

When determining that they are on different hardware platforms, data exchange is usually implemented using two existing core mechanisms based on EVB:

1) The first core mechanism: modify the spanning tree protocol

Modify the spanning tree protocol to support the function that packets received from a port can also be sent out from the port;

2) Second core mechanism: reuse Q-in-Q

Reusing Q-in-Q to transmit data packets carrying virtual channel identifiers (S-tags) on the physical link between the external switch and the server, and identifying different virtual channels (S-channels) through S-tags, thereby Achieve isolation of different flows;

Here, data exchange is implemented by using existing reusable Q-in-Q. In the EVB system model, the S component of the server side and the S component of the external switch side pass the S channel discovery and configuration protocol. (S-Channel Discovery and Configuration Protocol, CDCP) for negotiation: the external switch is responsible for allocating S-tags, which are used to establish several S-channels between the S components in the server and the S components in the switch; The corresponding port of the S component adds a corresponding S-tag to the data packet. If the data packet does not carry the S-tag, the data packet is determined to be an invalid packet, and the data packet is discarded and processed. The processing flow is performed; otherwise, the data packet carrying the S-tag is transmitted to the external switch through the S-Channel, and the S-tag is stripped on the corresponding port of the external switch S component, and the data packet is forwarded to the target host, so The corresponding S-tag is carried in the data packet and sent to the target host through an external switch, thereby achieving isolation of different traffic.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the EVB-based data exchange method described in FIG.

To implement the foregoing method, the embodiment of the present invention provides an EVB-based data exchange system. Since the principle and method for solving the problem are similar, the implementation of the system may refer to the implementation of the foregoing method, and the repeated description is not repeated.

4 is a schematic structural diagram of an EVB-based data exchange system according to an embodiment of the present invention. As shown in FIG. 4, the system includes: a receiving module 400, a determining module 401, and a sending module 402.

The receiving module 400 is configured to receive a data packet sent by the source host, where the data packet carries a MAC address of the target host.

The determining module 401 is configured to determine, according to the MAC address of the target host, whether the source host and the target host are on the same hardware platform;

The sending module 402 is configured to send the data packet directly to the target host when the determining module 401 determines that it is in the same hardware platform.

The above division manner is only a preferred implementation manner given by the embodiment of the present invention, and the function module The manner of division does not constitute a limitation of the present invention.

Here, the source host is a virtual machine in a server; the destination host may be a virtual machine on the same hardware platform as the source host, or may be a real host or virtual machine on a different hardware platform from the source host. .

In a specific implementation, the sending module 402 is further configured to: when the determining module 401 determines that the hardware platform is in a different hardware platform, carry the corresponding virtual channel identifier in the data packet, and use the external switch to The data message is sent to the target host.

In a specific implementation, the server further includes:

The verification module 403 is configured to verify the validity of the data packet after the receiving module 400 receives the data packet sent by the source host.

When the validity of the data packet is verified, the determining module 401 determines whether the source host and the target host are on the same hardware platform according to the MAC address of the target host.

In a specific implementation, the determining module 401 is specifically configured to query the pre-stored MAC address table according to the MAC address of the target host to determine whether the source host and the target host are on the same hardware platform.

In an actual application, the EVB-based data exchange system may be integrated into the server, or may be communicatively connected to the server through an interface, and the EVB-based data exchange system serves as an auxiliary platform of the server, and controls between the virtual machines in the server. Data transmission or data transmission between the virtual machine in the server and the external network.

In an actual application, in a practical application, the receiving module 400, the determining module 401, the sending module 402, and the verifying module 403 may all be processed by a central processing unit (CPU) located in an EVB-based data exchange system. (MPU, Micro Processor Unit), digital signal processor (DSP, Digital Signal Processor), or Field Programmable Gate Array (FPGA).

In order to explain the embodiments of the present invention more clearly, the present invention will be described below with specific embodiments. The data exchange process in the embodiment is described in detail.

Embodiment 1

As shown in FIG. 5, the EVB-based virtual machine switching system in the first embodiment includes a server 50 and an external switch 56. The EVB-based data exchange system is integrated in the server 50, and five servers are configured in the server 50. a virtual machine VM51, a virtual machine VM52, a virtual machine VM53, a virtual machine VM54, a virtual machine VM55; and a virtual machine VM57 is configured in the external server;

When the VM 54 needs to communicate with the VM 55, when the EVB-based data exchange system receives the data packet sent by the source host VM54, the MAC address of the target host VM55 is extracted from the packet header of the data packet, according to the target host. The MAC address of the VM 55 queries the MAC address table, and determines that the source host VM 54 and the target host VM 55 are on the same hardware platform. At this time, the data packet is directly sent to the target host through the external switch 56 to implement the internal virtual machine of the server. Data message transmission;

When the VM 53 needs to communicate with the virtual machine VM57 in the external server, when the EVB-based data exchange system receives the data packet sent by the source host VM53, the target host VM57 is extracted from the packet header of the data packet. The MAC address is queried according to the MAC address of the target host VM57, and the source host VM53 and the target host VM57 are in different hardware platforms, and the corresponding S-tag1 is carried in the data packet and sent to the target through the external switch 56. Host VM57.

The method described in the present invention is not limited to the embodiments described in the specific embodiments, and other embodiments are obtained by those skilled in the art according to the technical solutions of the present invention, which also belong to the technical innovation scope of the present invention.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Industrial applicability

In the embodiment of the present invention, the data packet sent by the source host is received, where the data packet carries the MAC address of the target host, and determines whether the source host and the target host are on the same hardware platform according to the MAC address of the target host; When the hardware platform is used, the data packet is directly sent to the target host, and the data packet is not sent through the external switch. Therefore, when the same hardware platform is determined, the external switch is not required, and the server directly Sending the data packet to the target host can not only avoid unnecessary network bandwidth resource overhead, improve the utilization of network bandwidth resources, but also reduce the transmission delay of data packets.

Claims

An EVB-based data exchange method, the method comprising:

Receiving a data packet sent by the source host, where the data packet carries a media access control MAC address of the target host;

Determining whether the source host and the target host are on the same hardware platform according to the MAC address of the target host;

When it is determined that it is on the same hardware platform, the data packet is directly sent to the target host.
The method of claim 1 wherein the method further comprises:

When the data is in a different hardware platform, the corresponding virtual channel identifier is carried in the data packet, and the data packet is sent to the target host through an external switch.
The method of claim 1, wherein after the receiving the data message sent by the source host, the method further comprises:

Verifying the legality of the data message;

When the validity of the data packet is verified, it is determined whether the source host and the target host are on the same hardware platform according to the MAC address of the target host.
The method according to any one of claims 1 to 3, wherein the determining whether the source host and the target host are on the same hardware platform according to the MAC address of the target host includes:

Query the pre-stored MAC address table according to the MAC address of the target host to determine whether the source host and the target host are on the same hardware platform.
An EVB-based data exchange system, where the system includes: a receiving module, a determining module, and a sending module;

The receiving module is configured to receive a data packet sent by the source host, where the data packet carries a MAC address of the target host;

The determining module is configured to determine, according to the MAC address of the target host, whether the source host and the target host are on the same hardware platform;

The sending module is configured to send the data packet directly to the target host when the determining module determines that it is in the same hardware platform.
The system of claim 5, wherein the sending module is further configured to: when the determining module determines to be in a different hardware platform, carry the corresponding virtual channel identifier in the data packet and pass the external switch. Send the data packet to the target host.
The system of claim 5 wherein said server further comprises:

The verification module is configured to verify the validity of the data packet after the receiving module receives the data packet sent by the source host;

When the validity of the data packet is verified, the determining module determines whether the source host and the target host are on the same hardware platform according to the MAC address of the target host.
The system according to any one of claims 5 to 7, wherein the determining module is configured to query a pre-stored MAC address table according to a MAC address of the target host to determine whether the source host and the target host are on the same hardware platform.
A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 1 to 4.