发明名称 |
ATM communication apparatus and failure detection and notification circuit |
摘要 |
In an ATM communication apparatus, the same failure detection process is conducted for the detection of a failure state of a VP when a transmission line of the apparatus fails and the detection of the failure state of the VP when a VP-AIS cell generated by another apparatus is received. When an AIS cell generation unit receives a channel failure signal generated by a line terminator, it generates an AIS cell and inserts it in a receiving cell stream. A circuit provided at downstream of the cell stream copies or extracts the AIS cells, determines the failure state, generates a FERF cell in accordance with the determination, and inserts it in a sending cell stream.
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申请公布号 |
US5461607(A) |
申请公布日期 |
1995.10.24 |
申请号 |
US19940251784 |
申请日期 |
1994.05.31 |
申请人 |
HITACHI, LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
MIYAGI, MORIHITO;ITO, YUTAKA;OKA, KENICHI;TAKAGI, YASUSHI |
分类号 |
H04Q3/00;H04L12/56;H04L29/14;H04Q11/04;(IPC1-7):H04J1/16 |
主分类号 |
H04Q3/00 |
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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