Title:
【発明の名称】ATMスイッチモジュール、ATMスイッチ容量拡張方法、およびATMルーティング情報設定方法
Document Type and Number:
Japanese Patent JP3001502
Kind Code:
B2
Abstract:
In an ATM switching module, expansion interfaces are connected in pair to an ATM switch to respectively operate in active and standby states. When another ATM switching module is installed and a connection is established between an expansion interface of standby state and the newly installed ATM switching module, a process sets the standby state expansion interface in hot-standby state, and holds off incoming ATM cells destined for the hot-standby state expansion interface until the connection is ready to accept cell traffic, whereupon the hot-standby state expansion interface is switched to active state, whereby the ATM switch and an ATM switch of the another switching module constitute a multi-stage configuration. The processor is arranged to update the routing table according to internal state of the ATM switch so that, when a call is to be established for an incoming ATM cell, the header of the cell contains a plurality of fields containing routing data respectively associated with different stages of the multi-stage configuration.
Inventors:
Toshiharu Kimura
Tetsuro Maeda
Tetsuro Maeda
Application Number:
JP13904698A
Publication Date:
January 24, 2000
Filing Date:
May 20, 1998
Export Citation:
Assignee:
Kyushu NEC Corporation
NEC
NEC
International Classes:
H04Q3/00; H04L45/58; H04L45/74; H04L49/111; H04Q3/52; (IPC1-7): H04L12/28; H04Q3/52
Domestic Patent References:
| JP4273739A | ||||
| JP7143135A | ||||
| JP6141038A |
Attorney, Agent or Firm:
Nobuo Takahashi (3 outside)