WO2016180141A1

WO2016180141A1 - Virtual machine state management method and device

Info

Publication number: WO2016180141A1
Application number: PCT/CN2016/079093
Authority: WO
Inventors: 顾忠禹
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-07-31
Filing date: 2016-04-12
Publication date: 2016-11-17
Also published as: CN106411552A

Abstract

Provided are a virtual machine (VM) state management method and device. The method comprises: sending, by a VM state management function or function example executed on an uplink interface of an edge relay (ER) and supporting a preset protocol example, a VM state query packet to a VM; receiving, by the VM state management function or the function example, a VM state query response packet of the VM, and acquiring, by the VM state management function or the function example, state information of the VM; and sending via an extended field of the preset protocol, by the VM state management function or the function example, the state information of the VM to a network virtualization edge (NVE). The present invention addresses the problem of incomplete management of a VM state, and achieves a real-time management of the VM state under a network virtualization overlay based-on L3 network (NVO3) environment.

Description

Virtual machine state management method and device

Technical field

The present invention relates to the field of communications, and in particular to a virtual machine state management method and apparatus.

Background technique

In the data center, how to provide a virtual network (Virtual Network, VN for short) through virtualization technology, such as virtual machines, is a hot topic, involving many aspects such as virtualization of the network, causing equipment suppliers and operators. Concerned by many parties. For example, the Institute for Electrical and Electronic Engineers (IEEE) introduced 802.1Qbg (Edge Virtual Bridge) to support virtual machines (IEEE terminology is virtual stations. It is necessary to distinguish the platform that provides virtual stations, called EVB stations). How to connect to a switch outside the virtualization platform (Edge Virtual Bridging, referred to as EVB bridge). FIG. 1 is a schematic diagram of an architecture of an EVB in the related art. As shown in FIG. 1 , a virtual data interface discovery and configuration protocol (VDP), a packet data convergence protocol (Packet Data Convergence Protocol) A series of protocols, such as the PDCP and the Extented Capability Port (ECP), implement the connection of the Virtual Machine Interface (VSI) to the EVB bridge. In addition, in the Internet Engineering Task Force (IETF), a working group based on Network Virtualization Overlay based-on L3Network (NVO3) was established. the study. FIG. 2 is a schematic diagram of the architecture provided by the NVO3 virtual network in the related art. As shown in FIG. 2, there is a consistent understanding of how to implement the VN.

As shown in Figure 2, there is a centralized Network Virtualization Authority (NVA) to control the service provision. Multiple Virtual Machines (VMs) in the VN are connected to the network. The Virtual Virtual Network (Network Virtualization Edge, NVE for short) is further associated with the Virtual Routing and Forwarding (VRF) function of the VN in the NVE. The same VN of different NVEs is different. The VRF is connected through the NVE direct overlapping network tunnel to implement the VN. Of course, the VN can be connected to the Internet through NVE (which generally resides in the data center).

But there is no consensus on how NVO3 can implement a specific solution for VN. In particular, the control protocol for how the VM accesses the NVE segment is considered to be borne by the IEEE VDP. Intuitively, VDP is the implementation of the VSI/VM to EVB bridge (mainly with the Station-facing bridge port (SBP)), which is very similar to the VN that the VM joins the NVE. Possible solution. There is more discussion in NVO3. For example, because VDP is an L2 protocol, in order to implement NVO3 virtual network, L3 address information needs to be supported, and VN-ID information needs to be supported. The management of the VM state mainly focuses on the lifecycle management of the generation and deletion of the VM, and specifically includes the VM being in an initialization state, a ready state, and an activation state. In the active state, the VM is considered to be working properly. It is related to the location of the VDP, or further under the relevant technical system, the Hypervisor can only obtain the information of these VMs.

However, in the active state of the VM, or in the running state, the VM itself needs to perform special work, or multiple tasks. For some reason, these jobs or functions may not work, or the functions cannot be executed. This is actually not available to other VMs in the VN, but the VDP technology architecture does not provide a solution to this problem.

In view of the related art, the management of the VM state of the virtual machine is not perfect, and there is no effective solution at present.

Summary of the invention

The present invention provides a virtual machine state management method and apparatus, so as to at least solve the problem that the related protocols in the related art are not perfect for managing the virtual machine VM state.

According to an embodiment of the present invention, a virtual machine state management method is provided, including:

The virtual machine VM state management function or function instance running on the uplink interface of the edge relay ER supporting the preset protocol instance sends a VM status query message to the virtual machine VM;

The VM state management function or function instance receives a VM status query feedback message of the VM and obtains status information of the VM;

The VM state management function or function instance sends the state information of the VM to the NVE network virtualization edge device through an extension field of the preset protocol.

In the embodiment of the present invention, the running virtual machine VM state management function or function instance sends a VM status query message to the virtual machine VM, or receives the VM status query feedback message, including:

The VM state management function or function instance sends the status query message to the ER-connected VM through a first predefined Ethernet frame, wherein the first predefined Ethernet frame is of a broadcast type In the case where the VM state management function or function instance sends the status query message to all VMs connected to the ER, in a case where the first predefined Ethernet frame is of a unicast type, the VM The state management function or the function instance sends the VM status query message to the specified VM with the MAC address of the specified VM as the destination address;

The VM sends a VM status query feedback message in a second predefined Ethernet frame.

In the embodiment of the present invention, before the VM state management function or the function instance sends the VM state query message to the virtual machine VM, the method includes:

The VM status management function or function instance receives status query command information transmitted by the NVE through a preset protocol extended triplet TLV field, wherein the status query command information is used to indicate the VM status management function or function instance feedback / Collected status information of the VM.

In the embodiment of the present invention, after the VM state management function or the function instance sends the VM status query message to the virtual machine VM, the method includes:

Receiving a status query feedback message and obtaining state information of the VM, and combining the VM state information saved in the site to form status information of the VM;

In the embodiment of the present invention, if the VM reply is not received within the preset time period, after the VM status query message is repeatedly sent according to the set number of times, the VM reply is not received. In the case, it is determined that the VM is unreachable, and unreachable VM state information is formed.

In an embodiment of the present invention, the sending timing of the VM status management function or the function instance sending the VM status query message to the virtual machine VM includes at least one of the following:

In the case of receiving status query command information sent by the NVE, the VM state management function or function instance sends a VM status query message to the VM;

Send VM status query messages periodically.

In an embodiment of the invention, the preset protocol is:

Virtual Machine Interface Discovery and Configuration Protocol VDP, and the VDP Support Protocol: Packet Data Convergence Protocol CDCP and Extended Capability Port Mode Protocol ECP.

In an embodiment of the present invention, the virtual machine state management method includes:

The NVE directly sends a VM status query message to the virtual machine VM using the third predefined Ethernet frame; the VM directly feeds back the VM status information to the NVE using the fourth predefined Ethernet frame. The third predefined Ethernet frame and the fourth predefined Ethernet frame are different from the type values of the first predefined Ethernet frame and the second predefined Ethernet frame.

According to another embodiment of the present invention, a virtual machine state management apparatus is further provided, including:

a first sending module, configured to send a VM state query message to the virtual machine VM by using a virtual machine VM state management function or a function instance running on an uplink interface of the edge relay ER supporting the preset protocol instance;

a first receiving module, configured to receive, by the VM state management function or a function instance, a VM status query feedback message of the VM, and obtain status information of the VM;

The second sending module is configured to send the state information of the VM to the NVE network virtualization edge device by using an extended field of the preset protocol.

In an embodiment of the invention, the first sending module includes:

a predefined sending unit, configured to send the status query message to the VM of the ER connection by using the first predefined Ethernet frame, wherein the first predefined In the case that the Ethernet frame is of a broadcast type, the VM state management function or function instance sends the status query message to all VMs connected to the ER, where the first predefined Ethernet frame is a unicast type. The VM status management function or the function instance sends the VM status query message to the specified VM with the MAC address of the specified VM as the destination address;

The first receiving module is further configured to receive the VM to send a VM status query feedback message in a second predefined Ethernet frame.

In an embodiment of the invention, the apparatus comprises:

The second receiving module is configured to: before the VM state management function or the function instance sends the VM state query message to the virtual machine VM, the VM state management function or the function instance receives the triplet TLV field extended by the NVE through the preset protocol. The transmitted status query command information, wherein the status query command information is used to indicate the VM status information that the VM status management function or function instance feeds back/collects.

In an embodiment of the invention, the apparatus comprises:

The determining module is configured to query the state information of the feedback in the receiving state, and combine the VM state information saved in the site to form the state information of the VM; and, if the VM reply is not received within the preset time period After the VM status query message is repeatedly sent according to the set number of times, if the VM reply is not received, it is determined that the VM is unreachable, that is, the VM unreachable status information is formed;

The second sending module is further configured to report status information of the VM unreachable to the NVE.

In an embodiment of the present invention, the first sending module is further configured to: when receiving the status query command information sent by the NVE, the VM status management function or the function instance sends a VM status query message to the VM;

The first sending module is further configured to periodically send a VM status query message.

In an embodiment of the present invention, the preset protocol includes: a virtual machine interface discovery and configuration protocol VDP, and the VDP support protocol: a packet data convergence protocol CDCP, and an extended capability port mode protocol ECP.

Through the present invention, a virtual machine VM state management function or a function instance running on an uplink interface supporting an edge relay ER of a preset protocol instance sends a VM state query message to the virtual machine VM, and the VM state management function or function instance receives The VM status of the VM queries the feedback message and obtains the VM status information. The VM status management function or function instance sends the status information of the VM to the NVE network virtualization edge device through an extension field of the preset protocol, and the related protocol is resolved. The problem of the virtual machine VM state management is still not perfect, realizing the real-time management of the virtual machine state in the NVO3 environment.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of an architecture of an EVB in the related art;

2 is a schematic diagram of an architecture provided by an NVO3 virtual network in the related art;

FIG. 3 is a flowchart of a virtual machine state management method according to an embodiment of the present invention; FIG.

4 is a structural block diagram 1 of a virtual machine state management apparatus according to an embodiment of the present invention;

FIG. 5 is a structural block diagram 2 of a virtual machine state management apparatus according to an embodiment of the present invention; FIG.

6 is a structural block diagram 3 of a virtual machine state management apparatus according to an embodiment of the present invention;

FIG. 7 is a structural block diagram 4 of a virtual machine state management apparatus according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a network function according to an embodiment of the present invention; FIG.

9 is a schematic structural diagram of an Ethernet frame according to an embodiment of the present invention;

10 is a schematic diagram showing a detailed definition of an Ethernet frame format of a VM state collection command according to an embodiment of the present invention;

11 is a VM state VDP TLV definition intent according to an embodiment of the present invention;

FIG. 12 is another VM state VDP TLV definition intent according to an embodiment of the present invention; FIG.

FIG. 13 is a flow chart of VM state management based on VDP extension according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a virtual machine state management method is provided. FIG. 3 is a flowchart of a virtual machine state management method according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302: The virtual machine VM state management function or function instance running on the uplink interface of the edge relay ER supporting the preset protocol instance sends a VM status query message to the virtual machine VM.

Step S304, the VM state management function or function instance receives the VM state query feedback message of the VM and obtains state information of the VM.

Step S306, the VM state management function or function instance sends the state information of the VM to the NVE network virtualization edge device through an extension field of the preset protocol.

Through the above steps, the virtual machine VM state management function or function instance running on the uplink interface supporting the edge relay ER of the preset protocol instance sends a VM state query message to the virtual machine VM, and the VM state management function or function instance receives The VM status of the VM queries the feedback message and obtains the VM status information. The VM status management function or function instance sends the status information of the VM to the NVE network virtualization edge device through an extension field of the preset protocol, and the related protocol is resolved. The problem of the virtual machine VM state management is still not perfect, realizing the real-time management of the virtual machine state in the NVO3 environment.

In this embodiment, the running virtual machine VM state management function or function instance sends a VM status query message to the virtual machine VM, or receives the VM status query feedback message, including:

The VM state management function or function instance sends the status query message to the ER connected VM through the first predefined Ethernet frame, where the first predefined Ethernet frame is a broadcast type, The VM state management function or function instance sends the status query message to all VMs connected to the ER. When the first predefined Ethernet frame is of a unicast type, the VM state management function or function instance is specified. The MAC address of the VM is the destination address, and the VM status query message is sent to the specified VM.

In this embodiment, before the VM state management function or the function instance sends the VM state query message to the virtual machine VM, the VM state management function or the function instance receives the state transmitted by the NVE through the preset protocol extended triplet TLV field. Querying command information, wherein the status query command information is used to indicate status information of the VM fed back/collected by the VM state management function or function instance.

In this embodiment, after the VM state management function or the function instance sends the VM state query message to the virtual machine VM, the state query feedback message is received, and the state information of the VM is obtained, and the VM state information saved in the site is combined. Forming status information of the VM;

Further, if the VM status reply message is repeatedly sent according to the set number of times in the case that the VM reply is not received within the preset time period, if the VM reply is not received, the VM is determined to be unreachable. Forming unreachable VM state information;

In this embodiment, the sending timing of the VM status management function or the function instance sending the VM status query message to the virtual machine VM includes at least one of the following:

In the case of receiving the status query command information sent by the NVE, the VM status management function or the function instance sends a VM status query message to the VM;

Send VM status query messages periodically.

In this embodiment, the preset protocol is included as:

In this embodiment, the NVE directly sends a VM status query message to the virtual machine VM by using the third predefined Ethernet frame; the VM directly feeds the VM status information to the NVE using the fourth predefined Ethernet frame. The third predefined Ethernet frame and the fourth predefined Ethernet frame are different from the type values of the first predefined Ethernet frame and the second predefined Ethernet frame.

In this embodiment, a virtual machine state management device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or The implementation of a combination of software and hardware is also possible and conceived.

FIG. 4 is a structural block diagram 1 of a virtual machine state management apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes:

The first sending module 42 is configured to send a VM state query message to the virtual machine VM by using a virtual machine VM state management function or a function instance running on an uplink interface of the edge relay ER supporting the preset protocol instance;

The first receiving module 44 is configured to receive the VM status query feedback message of the VM by using the VM state management function or the function instance, and obtain status information of the VM;

The second sending module 46 is configured to send the status information of the VM to the NVE network virtualization edge device by using the VM status management function or the function instance.

Through the above device, the virtual machine VM state management function or function instance running on the uplink interface supporting the edge relay ER of the preset protocol instance sends a VM state query message to the virtual machine VM, and the VM state management function or function instance receives The VM status of the VM queries the feedback message and obtains the VM status information. The VM status management function or function instance sends the status information of the VM to the NVE network virtualization edge device through an extension field of the preset protocol, and the related protocol is resolved. The problem of the virtual machine VM state management is still not perfect, realizing the real-time management of the virtual machine state in the NVO3 environment.

FIG. 5 is a block diagram showing the structure of a virtual machine state management apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes: the first sending module 42 includes:

a predefined sending unit 52, configured to send the status query message to the VM of the ER connection by using the first predefined Ethernet frame, wherein the first predefined Ethernet frame is in the first predefined Ethernet frame In the case of a broadcast type, the VM state management function or function instance sends the status query message to all VMs connected to the ER. In the case where the first predefined Ethernet frame is of a unicast type, the VM status The management function or the function instance sends the VM status query message to the specified VM with the MAC address of the specified VM as the destination address;

The first receiving module 44 is further configured to receive the VM to send a VM status query feedback message in a second predefined Ethernet frame.

FIG. 6 is a structural block diagram 3 of a virtual machine state management apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes:

The second receiving module 62 is configured to send the VM state management function or the function instance to the triplet TLV field extended by the preset protocol before the VM state management function or the function instance sends the VM state query message to the virtual machine VM. State query command information, wherein the state query command information is used to indicate the VM state information that the VM state management function or function instance feeds back/collects.

FIG. 7 is a structural block diagram 4 of a virtual machine state management apparatus according to an embodiment of the present invention. As shown in FIG. 7, the apparatus includes:

The determining module 72 is configured to query the state information of the feedback in the receiving state, and combine the VM state saved in the site. Information, forming status information of the VM; and, if the VM reply is not received within the preset time period, after the VM status query message is repeatedly sent according to the set number of times, the VM reply is not received. Next, determining that the VM is unreachable, that is, forming state information that the VM is unreachable;

The second sending module 46 is further configured to report the VM unreachable information to the NVE, where the unreachable information indicates that the NVE refreshes the VM unreachable state information of the virtual route forwarding function VRF.

In this embodiment, the first sending module 42 is further configured to send the VM status query message to the VM when receiving the status query command information sent by the NVE;

The first sending module 42 is further configured to periodically send a VM status query message.

In the foregoing embodiment, the preset protocol includes: a virtual machine interface discovery and configuration protocol VDP, and the VDP support protocol: a packet data convergence protocol CDCP, and an extended capability port mode protocol ECP.

In another embodiment, a method and system for implementing VDP-based virtual machine state management in an NVO3 environment in a data center is also provided. Specifically, it includes:

The uplink interface of the ER supports the VDP instance, and at the same time supports the functional entity/instance of the collection of the state of the VM by the VDP.

Further, specifically, the state collection function entity sends a status inquiry message through a specific Ethernet broadcast frame. After receiving the status query message, all VMs connected to the ER send status information with the MAC address of the VM and the MAC address of the status collection function entity as the destination address.

The specific Ethernet frame is defined by a specific Ethernet frame type.

Preferably, the VM status collection function instance can also collect the status by using a unicast Ethernet frame. Specifically, the unicast status query message is directly sent by using the MAC address of the VM.

After the VM status collection function is collected, the VM information is sent to the NVE through the extension of the VDP protocol.

Further, the VM state management function entity/instance may receive status query command information transmitted by the NVE through the VDP extension TLV.

Further, after the VM status collection function sends a status inquiry message and does not receive a response within a specified time, the number of times of the message can be sent again. If no response is received, the VM is determined to be unreachable. The VM unreachable information needs to be reported to the NVE, and the VM state information of the VRF in the NVE is refreshed.

Further, the timing of sending the VM status collection function instance status query message may be triggered by a status query sent by the NVE or by a keepalive clock setting defined by the VM status collection function instance itself.

Through such an extension, the dynamic refresh and management of the virtual machine state in the NVO3 environment can be realized based on the extension of the VDP protocol.

FIG. 8 is a schematic diagram of a network function structure according to an embodiment of the present invention, as shown in FIG. The most basic way to run the state is to communicate with it and explicitly ask for its status. In the case of EVB, since VDP can be used for related information transmission, a feasible solution is to run on the Uplink Relay Port (URP) of the ER hosting the VDP functional entity. A VM state collection function instance to achieve the collection of the state of the VM.

It should be noted that other protocols may be run between the VM and the NVE to implement state collection.

Specifically, since there is an L2 message transmission channel between the VSI and the SBP, the present invention uses the L2 tunnel between the ER and the VM for state collection.

Specifically, a new/specified type Ethernet frame format is defined, which is specifically used for information interaction between the URP and the VM. The new Ethernet frame refers to an Ethernet type that is different from the existing Ethernet type and is specifically used for VM state information interaction. In general, this type requires IEEE approval when deployed on a large scale. The specific value is one of the types that the IEEE can provide and requires IEEE approval. A specific reference example is that the Ethernet type value of the PPP (Point to Point Protocol over Ethernet, PPPoE) discovery phase packet is 0x8863 (that is, 886 in hexadecimal).

It should be noted that two specified types of Ethernet frames are needed here, one for querying commands and the other for status feedback of query commands. Of course, both require IEEE approval.

FIG. 9 is a schematic structural diagram of an Ethernet frame according to an embodiment of the present invention. As shown in FIG. 9 , information of a specific state is obtained, and further command definition is needed. Specifically, it is implemented by the payload portion of the Ethernet frame. In the payload section, define a new header. FIG. 10 is a schematic diagram showing a detailed definition of an Ethernet frame format of a VM state collection command according to an embodiment of the present invention, as shown in FIG.

The code field defines the function of the specific implementation. Including: status queries, you can ask for a single VM, or all VMs. This can be done by the destination address of the Ethernet frame, or by distinction. Specifically, if it is a broadcast address, the status of all VMs in the domain is queried. If it is a unicast address, the specified VM returns its status information.

The Keepalive command is sent periodically to ask for the status of the VM. If the VM's feedback is still not received after several keepalive commands, the VM is considered unreachable.

The VN-ID field is used to distinguish different VN information, which is optional.

Session-ID is used to distinguish different communications. When a specific VM returns status information, it also needs to return the session-ID information to distinguish which status query.

Another option is the VM address/name, or the address/name of a group of VMs, used to indicate the VM that is specifically for the operation.

Version information, which can be defined as 001, is used to distinguish subsequent versions.

Length field, used to indicate the length of the status query header. Does not include the header of the Ethernet frame.

For the simplicity of implementation, you can choose 2 Ethernet frame types, one for the command and the other for the state. Delivery of information.

Alternatively, the command type and the status message can be distinguished by the coding type. For example, 0x00, 0x01, used to represent the above two commands; with 0x04, 0x05, the status feedback information. For such a message, a specific state code can be further defined. For example, 0x00 indicates that the VM is in normal operation; 0xFF indicates that the VM is not available, and other encodings indicate other different states.

Here, only a demonstration, specific definition values, can be selected according to actual conditions without affecting the essential content of the present invention.

Since the VDP is used to associate the VSI and the SBP, and there is no relevant content to deliver the specific working state of the VM, the VDP needs to be extended to implement the delivery of the state of the VM.

Specifically, a new VDP TLV type, VM state TLV, can be defined. One of the reserved TLV values 0x06-0x7E can be selected.

FIG. 11 is a definition of a VM state VDP TLV according to an embodiment of the present invention, as shown in FIG. 11, and a specific TLV (Type Length Value) definition, as shown in FIG. Specifically, it includes the TLV type, as well as the TLV information length and status fields.

Further, the TLV includes a command field for indicating a VM status query command of the NVE. Or, preferably, FIG. 12 is another VM state VDP TLV definition intent according to an embodiment of the present invention. As shown in FIG. 12, the first 4 bits of the status field may be used for the definition of the status query command, and the last 4 bits are used for The definition of the VM state.

It should be noted that the field definition of the state may also be performed by using the filtering information field defined by the existing associated TLV of the VDP.

Through the above definition and description, the information collection of the VM state and how to extend the VDP are implemented to deliver the VM state information to the NVE.

The specific VM state delivery timing may be that the VM actively sends the NVE to the NVE when the state changes, or the VM state information collection function instance transmits the VM state when the VM state changes, or may be initiated by the NVE actively, or periodically. A status inquiry is made to the VM.

FIG. 13 is a schematic flowchart of VM state management based on VDP extension according to an embodiment of the present invention. As shown in FIG. 13, the following steps are included.

Step S1001, optionally, the NVE sends VM state query information to the VM state management function entity/instance.

Step S1002: The VM state management function entity/instance, when the VM's keepalive timer expires, or when receiving the VM state query command or the keepalive command sent by the NVE, or the timing state set by the VM state management function entity/instance When the query time is up, the VM status query is started.

Step S1003: Send a VM status query message.

In step S1004, the VM returns its status information.

Step S1005. The VM state management function entity/instance sends the received VM state information to the NVE, or records it for later use. Or if the command is sent again within the set time, the command of repeating the set number of times is sent again, and if the reply of the VM is still not received, it is determined that the VM is unreachable.

Step S1006: The VM state management function entity/instance sends the VM state information, including information fed back by the VM, or the determined VM unreachable information to the NVE.

Other embodiments

In the above embodiment, the solution in the case of utilizing the existing protocol is fully ensured, that is, the extension of the existing VDP protocol is used to complete the real-time status query of the VM without inconsistency.

Another solution is that in addition to the status report of the VDP protocol operation, the NVE communicates directly with the VM to obtain real-time status information of the VM.

The specific solution is to define two other different Ethernet frame types for status query and feedback between the NVE and the VM.

The definition of a specific frame is similar to the previous definition. The difference is that since the NVE supports multiple virtual network VNs, the VN-ID field in the message is mandatory, and the state information of the VM is guaranteed to be sent to the correct VN.

The specific implementation aspects are similar. For example, a query command may be sent to all VMs in the VN to which the NVE is connected by broadcasting, or a query command may be sent to a specific VM through a unicast address. VMs generally use unicast addresses to feed back state information.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the storage medium may be configured to store program code for performing the method steps of the above embodiment:

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.

Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be used with general calculations. The devices are implemented, they may be centralized on a single computing device, or distributed over a network of multiple computing devices, optionally they may be implemented in program code executable by the computing device, such that they may be stored Executed by the computing device in a storage device, and in some cases, the steps shown or described may be performed in an order different than that herein, or separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Based on the foregoing technical solution provided by the embodiment of the present invention, a virtual machine VM state management function or a function instance running on an uplink interface supporting an edge relay ER of a preset protocol instance sends a VM state query message to the virtual machine VM, where the VM The state management function or function instance receives the VM state query feedback message of the VM and obtains the VM state information, and the VM state management function or function instance sends the state information of the VM to the NVE network virtualization through an extension field of the preset protocol. The edge device solves the problem that the management of the virtual machine VM state is not perfect by the related protocol, and real-time management of the virtual machine state in the NVO3 environment is realized.

Claims

A virtual machine state management method includes:

The virtual machine VM state management function or function instance running on the uplink interface of the edge relay ER supporting the preset protocol instance sends a VM status query message to the virtual machine VM;

The VM state management function or function instance receives a VM status query feedback message of the VM and obtains status information of the VM;

The VM state management function or function instance sends the state information of the VM to the NVE network virtualization edge device through an extension field of the preset protocol.
The method of claim 1, wherein the running virtual machine VM state management function or function instance sends a VM status query message to the virtual machine VM, or receiving the VM status query feedback message includes:

The VM state management function or function instance sends the status query message to the ER-connected VM through a first predefined Ethernet frame, wherein the first predefined Ethernet frame is of a broadcast type In the case where the VM state management function or function instance sends the status query message to all VMs connected to the ER, in a case where the first predefined Ethernet frame is of a unicast type, the VM The state management function or the function instance sends the VM status query message to the specified VM with the MAC address of the specified VM as the destination address;

The VM sends a VM status query feedback message in a second predefined Ethernet frame.
The method of claim 1, wherein before the VM state management function or function instance sends a VM status query message to the virtual machine VM, the method comprises:

The VM status management function or function instance receives status query command information transmitted by the NVE through a preset protocol extended triplet TLV field, wherein the status query command information is used to indicate the VM status management function or function instance feedback / Collect status information of the VM.
The method of claim 1, wherein after the VM state management function or the function instance sends the VM status query message to the virtual machine VM, the method includes:

Receiving a status query feedback message and obtaining state information of the VM, and combining the VM state information saved in the site to form status information of the VM;

Further, if the VM status query message is repeatedly sent according to the set number of times in the case that the VM reply is not received within the preset time period, if the VM reply is not received, the The VM is unreachable and forms unreachable VM status information.
The method of claim 1, wherein the sending of the VM state query message to the virtual machine VM by the VM state management function or the function instance comprises at least one of the following:

In the case of receiving status query command information sent by the NVE, the VM state management function or function instance sends a VM status query message to the VM;

Send VM status query messages periodically.
The method according to any one of claims 1 to 5, wherein the preset protocol comprises:

Virtual Machine Interface Discovery and Configuration Protocol VDP, and the VDP Support Protocol: Packet Data Convergence Protocol CDCP and Extended Capability Port Mode Protocol ECP.
The method of claim 1 or claim 2, wherein the virtual machine state management method comprises:

The NVE directly sends a VM status query message to the virtual machine VM using the third predefined Ethernet frame; the VM directly feeds back the VM status information to the NVE using the fourth predefined Ethernet frame. The third predefined Ethernet frame and the fourth predefined Ethernet frame are different from the type values of the first predefined Ethernet frame and the second predefined Ethernet frame.
A virtual machine state management device includes:

a first sending module, configured to send a VM state query message to the virtual machine VM by using a virtual machine VM state management function or a function instance running on an uplink interface of the edge relay ER supporting the preset protocol instance;

a first receiving module, configured to receive, by the VM state management function or a function instance, a VM status query feedback message of the VM, and obtain status information of the VM;

The second sending module is configured to send the state information of the VM to the NVE network virtualization edge device by using an extended field of the preset protocol.
The apparatus of claim 8, wherein the first transmitting module comprises:

a predefined sending unit, configured to send the status query message to the VM of the ER connection by using the first predefined Ethernet frame, wherein the first predefined In the case that the Ethernet frame is of a broadcast type, the VM state management function or function instance sends the status query message to all VMs connected to the ER, where the first predefined Ethernet frame is a unicast type. The VM status management function or the function instance sends the VM status query message to the specified VM with the MAC address of the specified VM as the destination address;

The first receiving module is further configured to receive the VM to send a VM status query feedback message in a second predefined Ethernet frame.
The device of claim 8 wherein said device comprises:

The second receiving module is configured to: before the VM state management function or the function instance sends the VM state query message to the virtual machine VM, the VM state management function or the function instance receives the triplet TLV field extended by the NVE through the preset protocol. The transmitted status query command information, wherein the status query command information is set to indicate status information of the VM fed back/collected by the VM status management function or function instance.
The device of claim 8 wherein said device comprises:

The determining module is configured to query the state information of the feedback in the receiving state, and combine the VM state information saved in the site to form the state information of the VM; and, if the VM reply is not received within the preset time period After the VM status query message is repeatedly sent according to the set number of times, if the VM reply is not received, it is determined that the VM is unreachable, that is, the VM unreachable status information is formed;

The second sending module is further configured to report status information of the VM unreachable to the NVE.
The apparatus of claim 8 comprising:

The first sending module is further configured to: when receiving the status query command information sent by the NVE, the VM status management function or the function instance sends a VM status query message to the VM;

The first sending module is further configured to periodically send a VM status query message.
The apparatus according to any one of claims 8 to 12, wherein the preset protocol is comprised of:

Virtual Machine Interface Discovery and Configuration Protocol VDP, and the VDP support protocol: Packet Data Convergence Protocol CDCP, Extended Capability Port Mode Protocol ECP.