发明名称 |
Method and system for providing redundancy to asynchronous transfer mode emulated local-area networks |
摘要 |
A method for providing redundancy to an Asynchronous Transfer Mode (ATM) emulated local-area network (LAN) is disclosed. The ATM emulated LAN is served by a primary LAN Emulation Server, a Broadcast and Unknown Server (LES/BUS), and a LAN Emulation Configuration Server (LECS). A backup LES/BUS is coupled to the ATM emulated LAN. A logical redundancy virtual channel connection (VCC) is then established between the primary LES/BUS and the backup LES/BUS. When the redundancy VCC is present between the primary LES/BUS and the backup LES/BUS, the backup LES/BUS is placed in a dormant mode. However, when the redundancy VCC is absence between the primary LES/BUS and the backup LES/BUS, the backup LES/BUS is activated to serve any request generated by the ATM emulated LAN.
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申请公布号 |
US6226297(B1) |
申请公布日期 |
2001.05.01 |
申请号 |
US19980017306 |
申请日期 |
1998.01.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ALEXANDER CEDELL A.;FRICK J. KEVIN;ROVNER EDWARD J.;SQUIRE MATTHEW B. |
分类号 |
H04L12/56;(IPC1-7):G01R31/08;G06F11/00;H04J1/16;H04L12/28 |
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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