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Layer-3 overlay gateways

一种覆盖隧道、相关联的技术，应用在层3覆盖领域，能够解决问题未解决等问题

Active Publication Date: 2015-01-07
AVAGO TECH INT SALES PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although overlays bring many desirable features to networks, some problems remain unresolved in providing logical subnetworks across layer 2 broadcast domains

Method used

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Embodiment Construction

[0027] The following description is presented to enable those skilled in the art to make and use the present invention, and is provided in the context of specific applications and their requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and without departing from the spirit and scope of the present invention, the general principles defined herein can be applied to other embodiments and applications. Therefore, the present invention is not limited to the illustrated embodiments, but will conform to the widest scope consistent with the claims.

[0028] Overview

[0029] In various embodiments of the present invention, the problem of facilitating logical subnets (subnets) beyond the boundaries of physical subnets is solved by incorporating an overlay gateway that provides virtual tunneling between physical subnets to form The logical subnet. This logical subnet logically couples virtual machines belonging to the lo...

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Abstract

One embodiment of the present invention provides a computing system. The computing system includes a processor and a computer-readable storage medium for storing instructions. Based on the instructions, the processor operates the computing system as an overlay gateway. The computing system initiates and terminates an overlay tunnel associated with a virtual machine. During operation, the computing system maps a virtual Internet Protocol (IP) address of the virtual machine to a second IP address used to terminate the overlay tunnel based on information received from a configuration system. The computing system then determines an output port for a data packet based on the second IP address. The data packet comprises an inner packet and the destination address of this inner packet corresponds to the virtual IP address.

Description

Technical field [0001] This disclosure relates to network management. More specifically, this disclosure relates to layer 3 coverage in the network. Background technique [0002] The exponential growth of the Internet has made it a popular delivery medium for a variety of applications running on physical and virtual devices. These applications have brought about an increasing demand for bandwidth. As a result, equipment suppliers are scrambling to build larger and faster switches with multi-functional capabilities (such as awareness of virtual machine migration) to efficiently move more traffic. However, the size of the switch cannot grow indefinitely. Put forward several factors to say that it is limited by physical space, power consumption, and design complexity. In addition, switches with higher capabilities are generally more complex and expensive. More importantly, because systems that are too large and complex generally do not provide economies of scale, simply increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46
CPCH04L12/4633H04L49/70H04L41/0803H04L41/0806H04L41/0897
Inventor M·P·坎彻尔拉
Owner AVAGO TECH INT SALES PTE LTD
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