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首页> 外文期刊>IEICE Transactions on Communications >Improving Ethernet Reliability and Stability Using Global Open Ethernet Technology
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Improving Ethernet Reliability and Stability Using Global Open Ethernet Technology

机译：使用全球开放式以太网技术提高以太网的可靠性和稳定性

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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 (4 ms) independent of the number of MAC address entries, whereas the legacy Ethernet network took 522 ms 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.
机译：在本文中，作者从提高城域以太网环境中的可靠性的角度介绍了我们提出的全球开放式以太网（GOE）技术的新方案，并给出了其性能结果的数字证据。尽管提出了几种标准化或供应商专有技术来提高以太网可靠性，但是它们仍然存在可靠性问题，包括较长的故障恢复时间（由于转发数据库（FDB）刷新和从生成树协议的根桥故障中恢复），广播风暴，以及网络重新配置中的数据包丢失。为了解决这些问题，我们引入了三种方案：每个目标-多个快速生成树协议（PD-MRSTP），GOE虚拟交换机冗余协议（GVSRP）和服务中重新配置（ISR）方案。 PD-MRSTP方案消除了刷新FDB和从根桥故障中恢复的需要，从而缩短了故障恢复时间。 GVSRP方案可确保GOE域和旧式以太网域之间连接的可靠性。与PD-MRSTP结合使用时，GVSRP可以防止由于域间区域中的环路而导致的广播风暴问题。 ISR方案可在使用中更换和升级网桥，而不会丢失数据包。评估我们的原型系统，我们获得了以下出色的性能结果。使用PD-MRSTP方案的GOE网络提供了快速的故障恢复性能（4 ms），而与MAC地址条目的数量无关，而当网桥具有6000个MAC地址条目时，传统的以太网网络花费了522 ms。由于我们发现故障恢复时间与MAC地址条目的数量成比例增加，因此在大型运营商网络中，拥有一百万个MAC地址条目将花费数十秒的时间。因此，与传统以太网相比，使用PD-MRSTP可以将故障恢复时间减少十分之一。此外，对ISR方案的评估表明，可以以零丢包率升级网络。因此，基于GOE的VPN具有可靠性和稳定性，是其他以太网VPN的有前途的替代方案。

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