Line Module Configuration Deletion In Interactive Boot Mode233; Managing Switch Fabric Modules - Brocade Communications Systems MLX Series Hardware Installation Manual

FPGA Image Mismatch
A version mismatch between FPGA applications and hardware results in system failure and
continuous reboot on every module initialization failure. The Rolling Reboot feature places the line
card into the interactive or down state mode on detection of an FPGA version mismatch.
This feature will detect the incompatibility between application FPGA version and Hardware FPGA
version and put the card into down state if there is mismatch.
Monitor/Application Image Mismatch
A version mismatch between the monitor and application image results in system failure. The
Rolling Reboot feature places the line card into the interactive or down state mode on detection of
a monitor and application image version mismatch.
Line Module Configuration Deletion in Interactive Boot Mode
In this release, line module configurations can be deleted when a module is in Interactive Boot
Mode. When an existing LP module is removed from the slot and replaced by an LP module of a
different configuration, the LP module boots up to Interactive Boot Mode due to a configuration
mismatch. The LP module configuration is not allowed to be removed or updated without manual
removal of the LP module.
To avoid physically removing the LP module from the slot and deleting or updating the LP module
configuration, the deletion of the LP module configuration is only allowed if the card is in Interactive
Boot Mode. The LP module needs a power cycle to return to the Up state. On execution of the "No
Module" command, the user is prompted with an option to power cycle the card.

Managing switch fabric modules

This section provides information about how to manage standard switch fabric modules and high
speed switch fabric modules.
NOTE
In CLI output, standard modules are referred to as generation 1 (G1) modules, and high-speed
modules are referred to as generation 2 (G2) modules. The following interface modules are
classified by the system as G2 modules: 8x10G, 100G modules. All other interface modules such as
4-port 10G, 2-port 10G, 20-port 1G, 24-port 1G, and 48-port 1G modules are classified by the
system as G1 modules.
High speed switch fabric (HSF) modules can operate in Normal mode or Turbo mode. Standard
switch fabric modules (SFM) can only operate in Normal mode. The HSF module is classified as a
G2 module and SFM module is classified as a G1 module.
When operating in Normal mode, the system uses fixed size cells across the backplane. When
operating in Turbo mode, the system uses variable size cells across the backplane. Turbo mode
provides higher performance since it is a more efficient mechanism of sending cells across the
backplane.
Brocade MLX Series and NetIron XMR Hardware Installation Guide
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Managing switch fabric modules
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