CN102984082B - Network service quality control method and device - Google Patents

Abstract

The invention relates to network data transmission technology, in particular to a network service quality control method and device. Aiming at the problems existing in the prior art, the present invention provides a network service quality control method based on a virtual switch to complete the effective transmission of data between the virtual switch and virtual machines and solve the problem of network bridges and multiple virtual machines in the prior art The problem of congestion and packet loss caused by parallel data transmission among them can be effectively allocated for the network bandwidth when each virtual machine transmits data in the network transmission, ensuring the quality of network service. The invention performs data interaction with the network service quality control module through the virtual machine; processes through the network service quality control module; finally sends the network data processed by the network service quality control module through the physical network card, and improves the network service quality. This design is mainly used in the field of network data service quality monitoring.

Description

Method and device for network service quality control

technical field

The invention relates to network data transmission technology, in particular to a network service quality control method and device.

Background technique

Cloud computing data center architecture includes three basic structures, namely server virtualization, storage virtualization and network virtualization. Among them, server virtualization means that multiple virtual nodes are deployed on the same physical node.

Network virtualization implements the addition of different virtual machine virtual interfaces on the same physical port. Due to the large increase in the number of Layer 2 MAC addresses of virtualized interfaces, how to maintain efficient Layer 2 addressing and high-speed data forwarding on the forwarding plane is a difficult point. For example, the forwarding requirements of the MAC address table. Originally, each physical node only had two network cards and two MAC addresses. After installing ten virtual machines, the number of MAC addresses becomes 2x10 (redundant design) + 2 equals 22. Five virtual machines are installed. After ten virtual machines, the number of MAC addresses becomes 102, which increases the MAC table forwarding requirements by 50 times. The number of activated MACs is a linear function of the number of physical machines and the number of virtual machines. In a virtualized environment, the value of this function is amplified by ten Hundreds of times, the MAC density of a single physical port is enlarged year-on-year, and we know that the network information processing requirements are proportional to the square of the number of network nodes, so the network performance requirements have also increased by hundreds of thousands of times.

If the network transmission of one virtual machine needs to occupy too much bandwidth, the network transmission efficiency of other virtual machines will be severely reduced, and data congestion and packet loss will occur in the entire transmission network. In severe cases, the entire network connection will be disconnected, causing serious damage application has a huge impact.

Contents of the invention

The technical problem to be solved by the present invention is to provide a network service quality control method based on a virtual switch in view of the above existing problems, through the configuration module, network perception module, forwarding table maintenance module, query and judgment module, The cooperation between the row processing module and the sending module completes the effective transmission of data between the virtual switch and the virtual machine, solves the problem of congestion and packet loss caused by the parallel data transmission between the network bridge and multiple virtual machines in the prior art, and provides network Network bandwidth is effectively allocated when each virtual machine transmits data during transmission to ensure network service quality.

The technical scheme that the present invention adopts is as follows:

A network service quality control method includes:

Step 1: The virtual machine performs data interaction with the network service quality control module;

Step 2: The network service quality control module realizes isolation between virtual machines by configuring data interaction links for virtual machines, and ensures the network service quality of each virtual machine by matching network status and queue rearrangement;

Step 3: Send the network data processed by the network quality of service control module through the physical network card; in the step 2, the network service quality control module configures the data interaction link for the virtual machine, realizes the isolation between virtual machines and checks the network status The specific steps of matching and queue rearrangement to ensure the network service quality of each virtual machine include:

Step 21: Assign a data interaction link to the virtual machine through the configuration module; at the same time, the network perception module detects the current network status of the virtual machine that transmits data, and sends network status information according to the network status. If the virtual machine is closed or stops using the network, It is necessary to shield the data flags of the virtual machine in the data forwarding table, and allocate the network bandwidth to other virtual machines;

Step 22: Receive the network status information sent by the network perception module through the forwarding table maintenance module, update the data forwarding table, and output the current forwarding table information;

Step 23: Receive the forwarding table information sent by the forwarding table maintenance module through the query and judgment module, query the current network data status, and judge whether the current data needs to be rearranged. If the network data needs to be rearranged, enter the rearrangement process module, otherwise, send the current data through the sending module;

Step 24: Set the position in the queue of the data packet sent by the virtual machine according to the characteristic information of the virtual machine port through the rearrangement processing module;

Step 25: The data processed by the rearrangement processing module is output through the sending module.

The characteristic information in the step 24 refers to the virtual machine network port priority and time weight of the current data.

A network service quality control device, including a plurality of virtual machines, physical network cards, and a network service control module, configured to configure data interaction links for virtual machines, realize isolation between virtual machines and match network status and Queue rearrangement guarantees the network service quality of each virtual machine, and the data output by the network service control module is output through the physical network card; the network service control module includes:

A configuration module, configured to allocate a data interaction link for the virtual machine;

The network perception module is used to detect the current network status of the virtual machine transmitting data, and send network status information according to the network status;

The forwarding table maintenance module is used to receive the network status information sent by the network perception module, update the data forwarding table, and output the current forwarding table information; the forwarding table used by the forwarding table maintenance module uses a hash table to perform virtual machine Port feature information forwarding table storage;

The query and judgment module is used to receive the forwarding table information sent by the data forwarding table maintenance module, query the current network data status, and judge whether the current data is queue rearranged;

The rearrangement processing module is used to set the position of the data packet sent by the virtual machine in the queue through the rearrangement processing module according to the virtual machine port feature information when data queue rearrangement is required;

The sending module is used to forward the data packets output by the rearrangement processing module or the query and judgment module.

The virtual machine port feature information in the rearrangement processing module refers to the virtual machine network port priority and time weight of the current data. .

In summary, owing to adopting above-mentioned technical scheme, the beneficial effect of the present invention is:

1) Configure data interaction links for virtual machines through the network service quality control module and process control, realize the isolation between virtual machines, and ensure the network service quality of each virtual machine through the matching of network status and queue rearrangement. Guarantee QoS according to the quality of service; ensure the effective allocation of network bandwidth when each virtual machine transmits data in network transmission;

3) Update the forwarding maintenance table through the control forwarding table maintenance module and configure the module to allocate data interaction links for virtual machines, which can allocate traffic according to virtual machine interfaces and customize transmission strategies;

Description of drawings

The invention will be illustrated by way of example with reference to the accompanying drawings, in which:

FIG. 1 is a block diagram of network data transmission of a virtual machine in the prior art.

Fig. 2 is a functional block diagram of network data service quality in this design.

Fig. 3 is a flow chart of network data service quality structure in this design.

Detailed ways

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

Working principle; multiple virtual machines, when performing time-division multiplexing to send data,

a) It is necessary to monitor the network status of the virtual machine through the network awareness module. If the virtual machine is closed or stops using the network, it is necessary to shield the data flag bit of the virtual machine in the data forwarding table and allocate the network bandwidth to other virtual machine, and at the same time update the data forwarding table through the forwarding table maintenance module;

b) At the same time, through the configuration module, configure the corresponding virtual machine interaction link for the virtual machine that needs to transmit data, and output the configuration information to the query and judgment module;

c) The query and judgment module matches the virtual machine interaction link information of the configuration module and the data forwarding table information updated by the forwarding table maintenance module to obtain the current data status (including the priority of the virtual machine port, time weight and other information), Determine whether data queue rearrangement is required based on the current data status (rearrange the sending queue according to the priority of the virtual machine port and time weight, and allocate higher bandwidth to network data with higher priority and time weight of the virtual machine port) Realize service quality control.

Embodiment 1: A method for controlling network service quality includes:

Step 1: The virtual machine performs data interaction with the network service quality control module;

Step 2: The network service quality control module realizes isolation between virtual machines by configuring data interaction links for virtual machines, and ensures the network service quality of each virtual machine by matching network status and queue rearrangement;

Step 3: Send the network data processed by the network service quality control module through the physical network card.

Embodiment 2: On the basis of Embodiment 1, the network service quality control module in the step 2 realizes isolation between virtual machines by configuring data interaction links for virtual machines and ensures that each The specific steps for network quality of service of a virtual machine include:

Step 21: assign data interaction links to the virtual machines through the configuration module; at the same time, the network perception module detects the current network status of the virtual machine that transmits data, and sends network status information according to the network status;

Step 22: Receive the network status information sent by the network perception module through the forwarding table maintenance module, update the data forwarding table, and output the current forwarding table information;

Step 23: Receive the forwarding table information sent by the forwarding table maintenance module through the query and judgment module, query the current network data status, and judge whether the current data needs to be rearranged. If the network data needs to be rearranged, enter the rearrangement process module, otherwise, send the current data through the sending module;

Step 24: Set the position in the queue of the data packet sent by the virtual machine according to the characteristic information of the virtual machine port through the rearrangement processing module;

Step 25: The data processed by the rearrangement processing module is output through the sending module.

Embodiment 3: On the basis of Embodiment 1 or 2, the characteristic information in the step 24 refers to the virtual machine network port priority and time weight of the current data.

Embodiment 4: On the basis of Embodiment 1, a network service quality control device includes a plurality of virtual machines, physical network cards, and a network service control module, which are used to configure data interaction links for virtual machines to realize the virtual machine. Isolate and ensure the network service quality of each virtual machine by matching the network status and queue rearrangement, and output the data output by the network service control module through the physical network card.

Embodiment five: On the basis of embodiment four, the virtual network service control module includes:

The configuration module is used to allocate data interaction links for virtual machines; the network perception module is used to detect the current network status of the virtual machine transmitting data, and sends network status information according to the given status information; the forwarding table maintenance module is used to receive network The network status information sent by the perception module updates the data forwarding table and outputs the current forwarding table information; the query and judgment module is used to receive the forwarding table information sent by the data forwarding table maintenance module, query the current network data status, and judge the current data for queue Whether to perform rearrangement; the rearrangement processing module is used to set the position of the data packet sent by the virtual machine in the queue according to the virtual machine port feature information through the rearrangement processing module when data queue rearrangement needs to be performed; the sending module uses It is used to forward the data packets output by the rearrangement processing module or the query and judgment module.

Embodiment 6: On the basis of Embodiment 5, the virtual machine port feature information in the rearrangement processing module refers to the virtual machine network port priority and time weight of the current data.

Embodiment 7: On the basis of Embodiment 5 or 6, the forwarding table used by the forwarding table maintenance module adopts a hash table to store the virtual machine port feature information forwarding table.

Embodiment 7: On the basis of Embodiment 5, 6 or 7, the rearrangement processing module adopts a red-black tree queuing algorithm.

The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, and any new method or process step or any new combination disclosed.

Claims (4)

1. a network service quality control method, is characterized in that, comprising:

Step 1: virtual machine and Network service quality control module carry out data interaction;

Step 2: Network service quality control module, by being virtual machine configuration data interactive link, realizes the isolation between virtual machine and the coupling passed through network state and the every platform virtual machine network service quality of queue rearrangement guarantee;

Step 3: send the network data through Network service quality control resume module by physical network card; In described step 2, Network service quality control module is by for virtual machine configuration data interactive link, realizes isolation between virtual machine and comprises by resetting the every platform virtual machine network service quality concrete steps of guarantee to the coupling of network state and queue:

Step 21: be virtual machine distribute data interactive link by configuration module; Simultaneously network aware module detects the current network state of the virtual machine of transmission data, and send network state information according to network state, if wherein virtual machine has been closed or has been stopped using network, then need to carry out shielding processing to the Data Labels position of its virtual machine in data retransmission table, network bandwidth allocation is given other virtual machine;

Step 22: receiving by transmitting maintenance module the network state information that network aware module sends, upgrading data retransmission table, and export and currently transmit information;

Step 23: by inquiry and judge module receive transmit maintenance module send transmit information, inquiry current network data mode, judge whether current data carries out queue rearrangement, if when network data needs to carry out data queue's rearrangement, then enter rearrangement processing module, otherwise, send current data by sending module;

Step 24: the position of packet in queue that virtual machine transmission is set according to the characteristic information of virtual machine port by rearrangement processing module;

Step 25: the data after resetting processing module process are exported by sending module.

2. a kind of network service quality control method according to claim 1, is characterized in that, characteristic information described in described step 24 refers to virtual machine network port priority and the time weighting of current data.

3. a Network service quality control device, comprise multiple virtual machine, physical network card, characterized by further comprising network service control module, for passing through as virtual machine configuration data interactive link, realize the isolation between virtual machine and the coupling passed through network state and the every platform virtual machine network service quality of queue rearrangement guarantee, and the data that network service control module exports are exported by physical network card; Described network service control module comprises:

Configuration module, for being virtual machine distribute data interactive link;

Network aware module, the network state that the virtual machine for detecting transmission data is current, and send network state information according to network state;

Transmitting maintenance module, for receiving the network state information that network aware module sends, upgrading data retransmission table, and export and currently transmit information; Wherein transmit that maintenance module uses what transmit employing is that the mode of Hash table is carried out virtual machine port diagnostic information and transmitted storage;

Inquiry and judge module, transmit information for what receive that data retransmission table maintenance module sends, inquiry current network data mode, judges whether current data carries out queue rearrangement;

Reset processing module, during for carrying out data queue's rearrangement when needs, then the position of packet in queue of virtual machine transmission is set according to virtual machine port diagnostic information by rearrangement processing module;

Sending module, for forwarding the packet resetting processing module or inquiry and judge module output.

4. a kind of Network service quality control device according to claim 3, is characterized in that, in described rearrangement processing module, virtual machine port diagnostic information refers to virtual machine network port priority and the time weighting of current data.