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A-8 Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
POST and Boot Specifications
A
POST and Boot Specifications
The switch performs POST by default each time it is powered on or rebooted or the system is reset.
Boot time with POST is a minimum of three minutes.
POST can be skipped after subsequent reboots by entering the fastBoot command. For more
information about this command, refer to the Brocade Fabric OS Command Reference.
POST
The success/fail results of the diagnostic tests that run during POST can be monitored through LED
activity, the error log, or a command-line interface.
POST includes the following tasks:
1. Conducting preliminary POST diagnostics.
2. Initializing the operating system.
3. Initializing hardware.
4. Running diagnostic tests on several functions, including circuitry, port functionality, memory,
statistics counters, and serialization.
Boot
Boot completes in a minimum of three minutes if POST is run. In addition to POST, boot includes the
following tasks after POST is complete:
1. Performing universal port configuration.
2. Initializing links.
3. Analyzing fabric. If any ports are connected to other switches, the switch participates in a
fabric configuration.
4. Obtaining a domain ID and assigning port addresses.
5. Constructing unicast routing tables.
6. Enabling normal port operation.