HP StorageWorks Fabric OS 6.x administrator guide (5697-7344, March 2008)

494 Implementing an interoperable fabric
Enabling McDATA Fabric mode
When McDATA Fabric mode is turned on, the OUI portion of the switch WWN is no longer replaced with
a McDATA OUI. All existing zoning configurations will be cleared.
To enable McDATA Fabric mode
1. Verify that you have implemented all the Brocade prerequisites necessary to enable interopmode 2
on the fabric (see ”McDATA Fabric mode configuration restrictions” on page 488.)
2. Connect to the switch and log in as admin.
Ensure that the switch is disabled or offline.
3. Enter the switchDisable command to disable the switch.
switch:admin> switchdisable
4. Enter the configure command to set the Domain ID to a number in the range from 97 to 127. (For
detailed instructions, see ”Working with domain IDs” on page 36.)
switch:admin> configure
Configure...
Fabric Parameters (yes, y, no, n): [no] y
Domain (1...127): [1] 97
5. Enter the interopmode 2 command to enable interoperability. This command resets a number of
parameters and enables fabric mode.
switch:admin> interopmode 2
McDATA Fabric mode is enabled
The switch effective configuration will be lost.
The system will reboot to allow the change to take effect.
Do you want to continue? (yes, y, no, n): [no]y
The configuration is being saved - a system reboot will
cause the change to take effect.
Please disable switch before changing the interop mode.
The switch automatically reboots after changing the interoperability mode.
6. Repeat step 2 through step 5 on each Brocade 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 McDATA switches
to the Brocade fabric, one at a time.