September 2000
Beginner
1312 pages
33h 47m
English
Content preview from Solaris™ 8 System Administrator's Reference
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syncloop — Synchronous Serial Loopback Test Program
Synopsis
/usr/sbin/syncloop [-cdlstv] device
Description
Use the syncloop command to perform several loopback tests that are useful in exercising the various components of a serial communications link.
Before running a test, syncloop opens the designated port and configures it according to command-line options and the specified test type. It announces the names of the devices being used to control the hardware channel, the channel number (ppa) corresponding to the device argument, and the parameters it has set for that channel. It then runs the loopback test in three phases.
The first phase is to listen on the port for any activity. If no activity is seen for at least four seconds, syncloop ...
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