Title:
【発明の名称】非同期転送モード通信装置および非同期転送モード通信装置の仮想パス切替方法
Document Type and Number:
Japanese Patent JP3087749
Kind Code:
B2
Abstract:
Asynchronous transfer mode communication equipment utilizing distributed processing to manage switching to standby virtual paths when a failure occurs in an active path, allowing an increased number of virtual paths to be reliably handled by the equipment, even in situations where multiple virtual paths simultaneously fail. Each unit controller within the ATM communication equipment has its own virtual path paired information table. When a failure occurs in a virtual path to a respective unit controller, the unit controller can immediately and independently select a standby path. This distributed processing increases the retrieval speed of standby paths and minimizes the delay to full restoration of service, avoiding the concurrent processing bottleneck that occurs in prior art designs when multiple active paths simultaneously fail and a central processor must sequentially redirect each unit controller.
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Inventors:
Satoshi Kamiya
Application Number:
JP4710899A
Publication Date:
September 11, 2000
Filing Date:
February 24, 1999
Export Citation:
Assignee:
NEC
International Classes:
H04L12/46; (IPC1-7): H04L12/28
Domestic Patent References:
| JP1132052A | ||||
| JP6232862A | ||||
| JP774747A |
Attorney, Agent or Firm:
Kihei Watanabe