A data transmission method for virtualized network, node controller and system

A data transmission method and node controller technology, applied in transmission systems, electrical digital data processing, instruments, etc., can solve performance bottlenecks, waste protocol layer processing capacity, increase NC workload and other problems, achieve high speed and avoid performance bottleneck effect
CN105704098BActive Publication Date: 2019-03-01HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2019-03-01

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Abstract

Embodiments of the invention disclose a data transmission method for virtualized networks, a node controller and a data transmission system for virtualized networks. The method comprises the following steps: a first node controller reads a data packet from a storage area of a source virtual machine, wherein the first node controller is a local node controller of the source virtual machine; the data packet is parsed to get a destination address, and a second node controller is determined according to the destination address, wherein the second node controller is a local node controller of a destination virtual machine directed by the destination address; and the data packet is written into the storage area address of the destination virtual machine through the second node controller. A data packet transmitting operation is converted into a storage space shifting operation. The operation is quick, and there is no need to additionally occupy the protocol layer processing ability of NCs. Moreover, performance bottlenecks caused when network card equipment becomes an access hotspot are avoided.
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Description

technical field

[0001] The invention relates to the field of communication technology, in particular to a data transmission method of a virtualized network, a node controller and a system. Background technique

[0002] Non-uniform memory access (NUMA) is a memory structure design for multiprocessors, and the memory access time depends on the memory location accessed by the processor. Under NUMA, a processor can access its own local memory somewhat faster than non-local memory (memory shared by the processor or memory to another processor).

[0003] Cache-related non-uniform memory access (Cache Coherent Non-Uniform Memory Access, CC-NUMA) is a type of NUMA. In the CC-NUMA system, the distributed memory is connected to form a single memory, and the memory access between different NUMA domains is realized through the agent of the node controller (Node Controller, NC), and no software is required to maintain the consistency of multiple data copies , and does not require softw...

Claims

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