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Ethernet extension for the data center

A technology of Ethernet, network equipment, applied in the field of Ethernet expansion in data centers

Active Publication Date: 2007-09-19
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the cost of an Infiniband based system will not be a replacement cost but an additive cost

Method used

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  • Ethernet extension for the data center
  • Ethernet extension for the data center
  • Ethernet extension for the data center

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Embodiment Construction

[0059] Reference is now made in detail to certain specific embodiments of the invention, including what the inventors believe to be the best mode for carrying out the invention. Examples of these specific embodiments are shown in the accompanying drawings. While the invention has been described in conjunction with these specific embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, alternatives, modifications and equivalents are intended to be included within the spirit and scope of the invention as defined by the appended claims. In addition, numerous specific details are set forth below in order to provide a thorough understanding of the present invention. The present invention may be practiced without some or all of these specific details. Additionally, well-known process operations have not been described in detail so as not to obscure the present invention.

[0060] The present invention provide...

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Abstract

The present invention provides methods and devices for implementing a Low Latency Ethernet (''LLE'') solution, also referred to herein as a Data Center Ethernet (''DCE'') solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes (''VLs'') in a single physical connection of a data center or similar network. Some VLs are ''drop'' VLs, with Ethernet-like behavior, and others are ''no-drop'' lanes with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 60 / 621,396 (Attorney Docket No. CISCP404P), entitled "FC Over Ethernet," filed October 22, 2004, which is hereby incorporated by reference in its entirety . This application is also related to US Patent Application No. 11 / 078,992 (Attorney Docket No. CISCP409), filed March 10, 2005, entitled "Fibre Channel Over Ethernet," which is hereby incorporated by reference in its entirety. Background technique [0003] Figure 1 shows a simplified schematic diagram of a general type of data center that might be used by an enterprise (eg, a financial institution) that requires high availability and networked storage capabilities. Data center 100 includes redundant Ethernet switches with redundant connections for high availability. Data center 100 is connected to clients over network 105 via firewall 115 . Network 105 may be, for example, an intranet, a DMZ, and / ...

Claims

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Application Information

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IPC IPC(8): H04J1/16H04J3/14H04L1/00H04L12/26G01R31/08G06F11/00G06F15/173G08C15/00H04L12/46H04L29/06
Inventor 西尔瓦诺·加伊托马斯·埃兹尔露咔·卡菲罗戴维·贝尔加马斯科迪内希·达特弗拉维欧·博诺米
Owner CISCO TECH INC
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