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Installing and Operating the Module 3 - 15
If you set up redundancy between a secure port and a non-secure port
(whether on a Security Module port or other module port), a warning
message is displayed to terminal management. The warning informs you
that this configuration has the potential to automatically cause a change in
security when the primary port fails and the secondary port becomes
activated.
Link Integrity
In general, enable Link Integrity for the Security Module to conform to
the10BASE-T standard. Disable Link Integrity to connect to older equipment
that does not conform to the 10BASE-T standard.
Enable Link integrity at both ends or disable Link Integrity at both ends of
the connection. If one end of the connection is different, the module with
Link Integrity enabled reports a Link Integrity error.
If you enable a port and disable Link Integrity, the Status LED for that port
is on for 10 seconds and blinks off for 400 msecs to indicate that Link
Integrity is disabled.
Enter the following management command to enable Link Integrity for all
ports on the Ethernet module in slot 5.
ONline> set port 5.all link_integrity enable [ENTER]
Module Security
The Module Security DIP switch allows you to enable or disable security for
the module. 3Com recommends that you leave this switch in its factory
default setting (Off). This setting ensures that in the unlikely event of a
concurrent failure of both the master management module and
concentrator power, the Security Module ports will power up with ports
disabled in a concentrator without network management.
Note: When the Security switch is set to enabled, port mode is
set to disabled. Conversely, when the Security switch is set
to disabled, port mode is set to enabled.