35
TLX48 2RU KVM Matrix Switch Product Manual
thinklogical
Rev. B, May 2022
To verify the system
’s
Restricted Switching policy
, Thinklogical recommends the following:
1) Review the
daemon.log
file on the active Controller Card and correct any errors in the Restricted
Switching Table before implementing multiple levels of security classification domains on the same Matrix
Switch.
2) Fully verify the
Restricted Switching
on the active Primary Controller Card before implementing multiple
levels of security classification domains on the same Matrix Switch.
3) In a redundant system, make the Back-Up Controller Card active by disconnecting the LAN cable from
the Primary Controll
er Card’s LAN port. The Back-Up Controller Card, upon becoming active, will evaluate
its Restricted Switching Table. Check the
daemon.log
file on the Back-Up Controller Card for any errors
in the Restricted Switching Table and correct them before implementing multiple levels of security
classification domains on the same Matrix Switch
using the Back-Up Controller Card.
4) Fully verify the Back-
Up Controller Card’s
Restricted Switching
before implementing multiple levels of
security classification domains on the same Matrix Switch.
There are cases where updates to the Restricted Switching Table must be made in an active system.
When an update is made to the table, the Controller will not evaluate the updated table until the following
procedures are followed:
When updates are made to the Restricted Switching Table in a
non-redundant system
, Thinklogical
recommends the following
(This procedure will be disruptive to system connections)
:
1) Update the Restricted Switching Table of the Primary Controller Card.
2)
Take the Primary Controller Card out of service by following guidelines in the “Safely Remove an Active
Controller Card” section of this document on pg.
.
When updates are made to the Restricted Switching Table in a
redundant system
, Thinklogical recommends
the following
(This procedure will NOT be disruptive to system connections)
:
1) Update the Restricted Switching Table of the inactive Back-Up Controller Card.
2) Take the Primary Controller Card out of service by following guidelines in
the “Safely Remove an Active
Controller Card” section of this document on pg.
. This will cause the Back-Up Controller Card to
become active and evaluate its Restricted Switching Table.
3) Update the Restricted Switching Table of the inactive Primary Controller Card with the same table used
for the Back-Up Controller Card.
4) Extract and re-insert the Primary Controller Card back into the chassis to cause the system to make the
Primary Controller Card the active controller and begin using the updated Restrict Switching Table. Ensure
that the LAN connection to the Primary Controller Card is restored promptly.
Note: When using a Back-Up Controller configuration, both controllers must have the same
Restricted Switching Table file(s) to maintain the security of the system.
Restricted Switching is disabled when Restricted Switching Table files are removed.
By default, when
there are no Restricted Switching Table files, all input and output ports will have a priority of 1. All Switches are
shipped without Restricted Switching Table files stored on the Controller Card and therefore do not restrict any
connection.
