Installation Guide

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 Conguration Deletion in Interactive Boot Mode
In this release, line module congurations 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 dierent conguration, the LP module boots up to Interactive Boot Mode due
to a conguration mismatch. The LP module conguration 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 conguration, the deletion of the LP
module conguration 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 classied 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 classied 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 classied as a G2 module and SFM module is classied as a G1 module.
When operating in Normal mode, the system uses xed 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 ecient mechanism of sending cells
across the backplane.
The system selects the operating mode for switch fabric modules at startup, or when the rst switch fabric or interface module is
installed. The system uses this mode for all modules that are subsequently installed. HSF modules will boot in Turbo mode only if all
active interface modules are G2 modules. In a chassis loaded with G1 and G2 modules, the HSF modules will default to Normal mode.
NOTE
If a system is operating in Turbo mode, G1 interface modules are blocked from operation. The user has to change the switch
fabric mode to Normal mode and restart the system before using the G1 interface modules.
If the system fabric mode is changed to Normal mode from Turbo mode, or vice versa, the system will not change the current operating
mode unless the chassis is reloaded.
Managing switch fabric modules
Extreme Routing MLX Series Hardware Installation Guide
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