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Firmware download on switches . . . . . . . . . . . . . . . . . . . . . . . . . . .193
Switch firmware download process overview. . . . . . . . . . . . . .194
Firmware download on an enterprise-class platform . . . . . . . . . . .196
Enterprise-class platform firmware download process overview196
Firmware download from a USB device. . . . . . . . . . . . . . . . . . . . . .200
Enabling USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200
Viewing the USB file system . . . . . . . . . . . . . . . . . . . . . . . . . . .200
Downloading from USB using the relative path . . . . . . . . . . . .200
Downloading from USB using the absolute path . . . . . . . . . . .200
FIPS Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201
Public and Private Key Management . . . . . . . . . . . . . . . . . . . .201
The firmwareDownload Command . . . . . . . . . . . . . . . . . . . . . .201
Power-on Firmware Checksum Test . . . . . . . . . . . . . . . . . . . . .202
Test and restore firmware on switches . . . . . . . . . . . . . . . . . . . . . .203
Testing a different firmware version on a switch. . . . . . . . . . .203
Test and restore firmware on enterprise-class platforms. . . . . . . .204
Testing different firmware versions on enterprise-class platforms205
Validating a firmware download. . . . . . . . . . . . . . . . . . . . . . . . . . . .207

Chapter 10 Managing Virtual Fabrics

In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
Virtual Fabrics overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
Logical switch overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
Default logical switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
Logical switches and fabric IDs. . . . . . . . . . . . . . . . . . . . . . . . .212
Port assignment in logical switches . . . . . . . . . . . . . . . . . . . . .212
Logical switches and connected devices . . . . . . . . . . . . . . . . .213
Logical fabric overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214
Logical fabric and ISLs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215
Logical fabric and ISL sharing. . . . . . . . . . . . . . . . . . . . . . . . . .216
Management model for logical switches. . . . . . . . . . . . . . . . . . . . .219
Account management and Virtual Fabrics . . . . . . . . . . . . . . . . . . .220
Supported platforms for Virtual Fabrics . . . . . . . . . . . . . . . . . . . . .220
Supported port configurations in the Brocade 5100, 5300, and VA-
40FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220
Supported port configurations in the Brocade DCX and DCX-4S221
Virtual Fabrics interaction with other Fabric OS features . . . .221
Limitations and restrictions of Virtual Fabrics . . . . . . . . . . . . . . . .222
Restrictions on moving ports . . . . . . . . . . . . . . . . . . . . . . . . . .223
Enabling Virtual Fabrics mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223
Disabling Virtual Fabrics mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .224
Configuring logical switches to use basic configuration values. . .225
Creating a logical switch or base switch . . . . . . . . . . . . . . . . . . . . .225
Executing a command in a different logical fabric context . . . . . .227