Improving Ethernet Reliability and Stability Using Global Open Ethernet Technology(<Special Section> The Next Generation Ethernet Technologies)

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概要

• 論文の詳細を見る

• In this paper, authors present new schemes of our proposed Global Open Ethernet (GOE) technology from a viewpoint of improving reliability in metro-area Ethernet environment and show the numerical evidence on their performance results. Although several standardized or vendor proprietary technologies are proposed to improve Ethernet reliability, they still have reliability problems in terms of long failure recovery time (due to forwarding database (FDB) flush and recovery from a root bridge failure on spanning tree protocol), broadcast storm, and packet loss in network reconfiguration. To solve these problems, we introduce three schemes, a Per Destination-Multiple Rapid Spanning Tree Protocol (PD-MRSTP), a GOE Virtual Switch Redundancy Protocol (GVSRP), and an In-Service Reconfiguration (ISR) schemes. PD-MRSTP scheme reduces the failure recovery time by eliminating the need to flush the FDB and to recover from root bridge failures. GVSRP scheme ensures the reliability of connections between a GOE domain and a legacy Ethernet domain. Combined with PD-MRSTP, GVSRP prevents broadcast storm problems due to loops in the inter-domain area. ISR scheme enables in-service bridge replacement and upgrade without packet loss. Evaluating our prototype system, we obtained the following remarkable performance results. The GOE network using PD-MRSTP scheme delivered a fast failure recovery performance (4ms) independent of the number of MAC address entries, whereas the legacy Ethernet network took 522ms when a bridge had 6000 MAC address entries. Since we found that the failure recovery time increased in proportion to the number of MAC address entries, the one in large carrier network having one million of MAC address entries would take several tens of seconds. Thus using PD-MRSTP can reduce failure recovery time one ten-thousandth comparing with that of legacy Ethernet. In addition, evaluation of the ISR scheme demonstrated that a network can be upgraded with zero packet loss. Therefore, a GOE-based VPN is a promising alternative to other Ethernet VPNs for its reliability and stability.

• 社団法人電子情報通信学会の論文
• 2006-03-01

著者

• Iwata A

  System Platforms Research Laboratories Nec Corporation

• Iwata Atsushi

  System Platforms Research Laboratories Nec Corporation

• Takagi Kazuo

  System Platforms Research Laboratories Nec Corporation

• UMAYABASHI Masaki

  System Platforms Research Laboratories, NEC Corporation

• HIDAKA Youichi

  System Platforms Research Laboratories, NEC Corporation

• ENOMOTO Nobuyuki

  System Platforms Research Laboratories, NEC Corporation

• OGASAHARA Daisaku

  System Platforms Research Laboratories, NEC Corporation

• ARUTAKI Akira

  System Platforms Research Laboratories, NEC Corporation

• Arutaki Akira

  System Platforms Research Laboratories Nec Corporation

• Hidaka Youichi

  System Platforms Research Laboratories Nec Corporation

• Enomoto Nobuyuki

  System Platforms Research Laboratories Nec Corporation

• Umayabashi Masaki

  System Platforms Research Laboratories Nec Corporation

• Ogasahara Daisaku

  System Platforms Research Laboratories Nec Corporation

関連論文

• Improving Ethernet Reliability and Stability Using Global Open Ethernet Technology( The Next Generation Ethernet Technologies)
• Proposal of Secure and Easy Remote Access Technology: SoftWire (日韓合同ワークショップ 1st Korea-Japan Joint Workshop on Ubiquitous Computing and Networking Systems (ubiCNS 2005))
• Global Open Ethernet Architecture for a Cost-Effective Scalable VPN Solution(Internet)
• Carrier-Grade Ethernet Technologies for Next Generation Wide Area Ethernet( The Next Generation Ethernet Technologies)
• ATM and IP Integration by Built-In IP Handling Capability in an ATM Switching System (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)

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