Cabletron Systems 6E133-25 - Manual (Page 71)

Chassis Configuration Screen
6E122-26, 6E132-25, 6E123-26 and 6E133-25 User’s Guide 5-23
NOTE
If the 6E12X-26 and 6E13X-25 have been set to 802.1Q
SWITCHING, refer to your
Port Based VLAN User’s Guide to
configure the devices for this type of operation.
The Operational Mode field in the Chassis Configuration
screen does not support the SECURE FAST VLAN operational
mode. For the modules to function as SecureFast switches,
they must have a unique IP addresses, and be configured to
act as Standalone devices in terms of Local Management via
the 6C105 chassis.
Section 5.15.9 provides additional
instructions and rules that must be met before configuring the
modules as SecureFast switches.