发明名称 |
Redundant ethernet automatic protection switching access to virtual private lan services. |
摘要 |
Embodiments disclosed herein provide redundant connectivity between an Ethernet Automatic Protection Switching (EAPS) access network and a Virtual Private LAN Service (VPLS) network. A first VPLS node is provided to function as an EAPS controller node. A second VPLS node is provided to function as an EAPS partner node. The first and second VPLS nodes are linked by a pseudowire and an EAPS shared-link. Additional EAPS nodes are also provided. The additional EAPS nodes are linked to each other and one of the additional EAPS nodes is designated as a master node. Links are also established between the VPLS nodes and the EAPS nodes such that one or more EAPS rings are formed. Each EAPS ring includes the shared-link between the first and second VPLS nodes. The EAPS rings are monitored to detect link failures. When a failure of the pseudowire shared-link between the first and second VPLS nodes is detected, all pseudowire links associated with the first VPLS node are disabled if any of the EAPS nodes has a path to both of the VPLS nodes. Otherwise, the existing pseudowire links associated with the first VPLS node are maintained. |
申请公布号 |
EP2518954(A1) |
申请公布日期 |
2012.10.31 |
申请号 |
EP20120173669 |
申请日期 |
2009.03.09 |
申请人 |
EXTREME NETWORKS, INC. |
发明人 |
STOKES, OLEN L.;SHAH, SUNIL P.;LIM, ARMEL |
分类号 |
H04L12/56;H04L12/24;H04L12/26;H04L12/42;H04L12/46 |
主分类号 |
H04L12/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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