3Com NETBuilder SI, SuperStack II manual On the T1/FT1 Port

Performing Loopback Tests 143

Performing a Remote

ANSI Loopback Test

on the T1/FT1 Port

This section describes how to perform a remote loopback test for ANSI on a T1/FT1 port. Connect your bridge/router to another bridge/router or to a remote device that supports ANSI.

To perform the remote loopback test for ANSI, follow these steps:

1Disable the WAN path by entering

SETDefault !3 -PATH CONTrol = Disable

2Start the loopback test by entering:

LPBCK !3 -PATH RmANSILnLpbckSTART (for a line loopback test)

or

LPBCK !3 -PATH RmANSIPyldLpbckSTART (for a payload loopback test)

LPBCK !3 -PATH V54LpbckSTART

3To stop the loopback test, enter:

LPBCK !3 -PATH RmANSILnLpbckSTOP (for a line loopback test)

or

LPBCK !3 -PATH RmANSIPyldLpbckSTOP (for a payload loopback test)

QRSS Testing on a This section describes the commands used to start and stop QRSS testing T1/FT1 Port on a T1/FT1 port.

To enable QRSS testing, enter:

QrssTest !3 -PATH QrssEnable

To stop QRSS testing, enter:

QrssTest !3 -PATH QrssDisable

To insert a single error, enter:

QrssTest !3 -PATH SingleErrInjStart

To stop inserting single errors, enter:

QrssTest !3 -PATH SingleErrInjStop

To insert continuous error streams, enter:

QrssTest !3 -PATH ContErrInjStart

To stop inserting continuous error streams, enter:

QrssTest !3 -PATH ContErrInjStop