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Message forwarding method and device

A packet forwarding and packet technology, applied in the field of network communication, can solve the problems of reducing OVS packet forwarding efficiency and high overhead, and achieve the effect of improving packet forwarding efficiency

Active Publication Date: 2015-05-06
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the application, the same VM may continuously send multiple messages with the same characteristic field, and every time OVS receives a message, it queries the matching flow entry from the kernel flow table, which will reduce the efficiency of OVS forwarding the message. And the cost is relatively large

Method used

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  • Message forwarding method and device
  • Message forwarding method and device

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] see figure 2 , figure 2 The flow chart of the method provided by the present invention. In this method, a corresponding flow cache (flow cache) table is pre-configured for a virtual machine port (vport) on the OVS. Initially, the flow cache table corresponding to each virtual machine port is a default value. Here, the virtual machine port is the port connected to the VM on OVS, such as image 3 The shown OVS is connected to vport1 of VM1, OVS is connected to vport 2 of VM2, and OVS is connected to vport3 of VM3.

[0030] Based on the above configuration, it is applied to OVS, figure 2 The method flow shown may include the following steps:

[0031] Step 201, receiving a message through a virtual machine port.

[0032] Step 202, pars...

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Abstract

The application discloses a message forwarding method and a message forwarding device. When flow statement items matching with characteristic fields are present in a flow cache table, messages can be directly forwarded through the flow statement items instead of inquiring inner core flow statements, wherein the flow statement items are in the flow cache table and match with the characteristic fields; thus the message forwarding efficiency can be greatly improved.

Description

technical field [0001] The present application relates to network communication technology, in particular to a message forwarding method and device. Background technique [0002] In a software-defined network (SDN: Soft Defined Networks), an open virtual switch (OVS: Open vSwitch) has two flow tables, one is a kernel flow table, and the other is a user mode flow table. Among them, the user mode flow table is a multi-level flow table, and the kernel flow table is a single-level flow table. [0003] Such as figure 1 As shown, when OVS receives the message sent by the virtual machine (VM: Virtual Machine) A, it analyzes the characteristic fields in the message header, such as source MAC, destination MAC, source IP, destination IP, protocol type, source port, Destination port and other fields, query the matching flow entry from the kernel flow table according to the feature field; [0004] If the flow entry matching the characteristic field is found in the kernel flow table, ...

Claims

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Application Information

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IPC IPC(8): H04L12/741H04L45/74
Inventor 程行峰
Owner NEW H3C TECH CO LTD
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