05408461 is referenced by 51 patents and cites 4 patents.

An ATM transmission system transmits cell-formatted data in an asynchronous transfer mode, and aims at conducting an online path route test in the system. If one path route only is established in the system, then one or more valid cell detecting units for detecting, upon receipt of a cell enable signal indicating that a valid cell to pass through the path route has been sent, the arrival of a valid cell are provided at an optional point including an ATM switch in the path route so that the path route can be partially or entirely validity-checked. If plurality of valid path routes are established, the system provides, in addition to the valid cell detecting units, a virtual path identifier and virtual channel identifier comparing unit for comparing values of the VPI and VCI stored therein with values of a VPI and a VCI added to an arriving cell, and a path route validity check unit for partially or entirely validity-checking a path route in the ATM transmission system.

Title
Path route test apparatus for use in an ATM transmission system
Application Number
8/215313
Publication Number
5408461
Application Date
March 21, 1994
Publication Date
April 18, 1995
Inventor
Shuji Yoshimura
Kanagawa
JP
Satoshi Kakuma
Kanagawa
JP
Shiro Uriu
Kanagawa
JP
Assignee
Fujitsu
JP
IPC
H04L 12/26
H04L 1/24
H04J 3/14
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