发明授权
- 专利标题： VP protection system and VP protection method
- 专利标题（中）： VP保护系统和VP保护方法
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申请号： US09373179申请日： 1999-08-12
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公开(公告)号： US06665263B1公开(公告)日： 2003-12-16
- 发明人: Mitsuru Kawabata , Shinobu Sasaki
- 申请人： Mitsuru Kawabata , Shinobu Sasaki
- 优先权： JP10-229218 19980814
- 主分类号： H04L1228
- IPC分类号： H04L1228
摘要：
The present invention provides a VP protection system and a VP protection method which forward messages quickly to nodes on an ATM network when an error occurs on the ATM network and reduce an error recovery time. The VP protection system, for use on an ATM network that includes a plurality of ATM nodes performing protection, a plurality of working VPs, and a plurality of standby VPs, exchanges messages among ATM nodes when an error occurs, one group of VPs at a time. An intermediate ATM node in a standby path at least comprises a VPG resource information management table, a VP resource information management table, a VPG configuration information management table, a VPG switching message receiving circuit, a VPG switching message sending circuit, node resource management circuits, a VPG resource allocation circuit, a VP expansion circuit, and a VP resource distribution circuit.