Unlock instant, AI-driven research and patent intelligence for your innovation.

Router port based packet transmitting method and device

A packet forwarding and router technology, applied in the field of communication, can solve the problem that the controller cannot distinguish the port attributes, etc.

Active Publication Date: 2015-05-06
NEW H3C TECH CO LTD
View PDF5 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the user network accesses the SDN network through a router port, the packet always triggers IP forwarding, and the switch must modify the header of the packet according to the IP forwarding method, but the controller cannot distinguish the port attributes and can only modify them uniformly. Send the flow table with the header or without modifying the header

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Router port based packet transmitting method and device
  • Router port based packet transmitting method and device
  • Router port based packet transmitting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention provides a method for packet forwarding based on router ports. In one embodiment of the present invention, please refer to figure 1 , the method is applied on the controller in the SDN network, specifically comprising the following steps:

[0024] Step 101, the controller receives a port status message sent by a user-side port of the switch, and the port status message carries port attributes.

[0025] Compared with the prior art, the present invention adds a port attribute in the port status message Port Status Message sent by the user side port of the switch, which can be specifically identified by the OFPC_PORT_ROUTER carried in the config field in the Port Status Message.

[0026] In a specific embodiment of the present invention, if OFPC_PORT_ROUTER is not set, it means that the port of the switch is a non-router port, and supports two-layer forwarding; Support IP forwarding. Of course, in other implementation manners, OFPC_PORT_ROUTER may a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a router port based packet transmitting method and device used in SDN (Software Defined Network). The method includes the steps of receiving a port state message which carries port attributes and is sent from a switch user side port; if the port is a router port, obtaining an IP address of the router port; obtaining topology paths of switches in the SDN and router reachability information of a user network connected to the router port, establishing an IP flow table for the router port, and sending the topology paths, the route reachability information and the IP flow table to all switches in the SDN for respectively establishing a local routing table guiding packet transmitting for all the switches in the SDN. By means of the router port based packet transmitting method and device, the connection between the SDN and the user network through the router port can be achieved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for forwarding messages based on router ports. Background technique [0002] SDN (Software Defined Network, Software Defined Network) is a new type of network architecture, which can separate the control plane and data plane of network equipment through OpenFlow (Open Flow) technology, so as to realize flexible control of network traffic. In SDN, it includes a controller that realizes the function of the control plane and several switches that realize the function of the data plane. [0003] The SDN network supports Layer 2 services and IP services, and the support of Layer 2 services and IP services depends on the learning of the host by the SDN controller. If IP forwarding of the message is required, the message can be sent to the gateway switch first, and the switch along the way still performs Layer 2 flow table forwarding, and the gateway device pe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/751H04L45/02
Inventor 宋小恒
Owner NEW H3C TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com