Diagnostic Modem; Diagnostic Cable Modem Command Line Interface Notes - Motorola SB5101 Reference Manual

SB5101 Cable Modem Overview

10 Diagnostic Modem

The diagnostic modem is physically the same as a customer modem except that it is orange in
colour, it has a small jack socket on the rear and it has a special "shelled" version of the
microcode. This is a simplified Korn shell system, which allows the user to log onto the device and
set diagnostic switches to trace and log what is happening on the network. This is a very powerful
tool for tracing intermittent and otherwise difficult faults.
10.1

Diagnostic Cable Modem Command Line Interface Notes

The CLI can only be accessed via an "rlogin" based Telnet client or the Diagnostic
Console Cable and the DIAG port on the back of the modem. Modems that are going to be
used as Diagnostic Tools and use the CLI must have the "SHELL" version of modem
firmware.
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