Fabric OS Administrator’s Guide 305
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Switch configurations for interoperability 14
The switch effective and defined configuration
will be lost if interop Mode is changed.
Interop Mode or Domain Offset Will Be Changed
and switch will be Enabled
Do you want to continue? (yes, y, no, n): [no] y
6. Repeat step 2 through step 5 on each Fabric OS switch in the fabric. For more information on
the switch, refer to the switch documentation.
7. After enabling McDATA Fabric mode on all switches, physically connect the legacy M-EOS
switches to the Fabric OS fabric, one at a time.

Enabling Brocade Native mode

You can configure logical switches in Brocade Native mode. When you change the mode from
McDATA Fabric or McDATA Open Fabric mode to Brocade Native mode, existing configurations are
erased and the switch must assume the zone configuration from the fabric it joins or a new
configuration must be configured. When you change the switch to Brocade Native mode, all
configuration parameters return to their default states and can be modified using the configure
command. The existing preferred configuration must be changed to a value within the user domain
ID range specified for the mode before changing to Brocade Native mode is allowed. If the
preferred domain ID is not in this range, the mode conversion changes the domain ID to 1.
NOTE
McDATA switches cannot communicate with switches in Brocade Native mode.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the switchDisable command to disable the switch.
switch:admin> switchdisable
3. Enter the interopMode 0 command to disable interoperability.
This command resets a number of parameters and disables McDATA Open Fabric mode or the
McDATA Fabric mode.
switch:admin> interopmode 0
The switch effective and defined configuration
will be lost if interop Mode is changed.
Interop Mode or Domain Offset Will Be Changed
and switch will be Enabled
Do you want to continue? (yes, y, no, n): [no] y
4. After removing each switch, wait for a fabric reconfiguration.
5. Repeat this procedure on all Fabric OS switches in the fabric.