Advanced Reference Guide
20
21
Fast SwitcHub-8mi SNMP
Parameter
Description
Display Diagnostics While Power-On Diagnostic indicators can be enabled/disabled during a hard reset.
Reset Unit with Diagnostics
Resets the unit and runs diagnostics. Clears all counters and
restores configuration parameters from nonvolatile memory. The
full process requires about 30 seconds.
Reset Unit without Diagnostics
Resets the unit without running diagnostics. Clears all counters
and restores configuration parameters from nonvolatile memory.
Clear Address Table
Clears the address table.
Reset EEprom to Factory Default Value Resets all counters and restores factory defaults for all configuration
parameters.
Logging Off the System
Use the Logoff command under the Main Menu to exit the System Configuration Program and
end all communications with the switch for that session.
Troubleshooting
Refer to the Quick Installation Guide for a more detailed listing of troubleshooting
procedures. However, if you have trouble making a Telnet connection, then please refer to
the following section.
Telnet Access
You can Telnet into the switch from anywhere within the attached network. However, you
must first configure the switch with a valid IP address, subnet mask, and default gateway.
If you have trouble establishing a link to the on-board menu-driven configuration program,
check to see if you have a valid network connection. Then verify that you entered the
correct IP address from your remote Telnet location. Also, be sure the port through which
you are connecting to the switch has not been disabled. (See Configuring Port Parameters
on page 10.) If it has not been disabled, then check the network cabling that runs between
your remote Telnet site and the switch.
Note
: Only one Telnet connection at a time is supported. If one Telnet session already
exists, a second Telnet connection will not be able to log into the system.
Pin Assignments for Serial Port Connections
DB9 Serial Port Pin Description
The DB9 serial port on the SwitcHub rear panel is used to
connect the switch to a management device. The on-board
menu-driven configuration program can be accessed from a terminal, a PC running a
terminal emulation program, or from a remote location via a modem connection. You can use
the management port to configure port settings (e.g., enabled or disabled), or to update
device firmware. The pin assignments used to connect various device types to the
switch's management port are provided in the following tables.
DB9 Port Pin Assignments
A
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Connection from Switch's 9-Pin Serial Port to PC's 9-Pin COM Port
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Connection from Switch's 9-Pin Serial Port to Modem's 25-Pin DCE Port
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2
2
Connection from Switch's 9-Pin Serial Port to PC's 25-Pin DTE Port
n
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5
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6
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6
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2
2
