Brocade Communications Systems MLX Series Hardware Installation Guide

234 Brocade MLX Series and NetIron XMR Hardware Installation Guide
53-1003821-01
Managing switch fabric modules
6
The system selects the operating mode for switch fabric modules at startup, or when the first
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.
NOTE
Changes to the switch fabric operating mode do not take effect until after a system reload.
The switch fabric modes have the following restrictions:
• The system blocks discovery of any standard switch fabric (G1) module if you have issued the
system-init block-g1-sfm command. Refer to “Blocking discovery of G1 switch fabric modules”
on page 234.
• If the system is operating in Turbo mode, standard switch fabric modules (G1) and standard
(G1) interface modules are automatically blocked.
• If there are any active G1 switch fabric modules, G2 interface modules are blocked.
• If there are any active G2 interface modules, G1 switch fabric modules are blocked.
Forcing HSF modules to operate in normal mode
NOTE
This procedure requires that you restart your router.
If necessary, you can configure HSF modules to operate in normal mode using the system-init
fabric-data-mode force normal command.
Brocade(config)# system-init fabric-data-mode force-normal
Syntax: [no] system-init fabric-date-mode force-normal
If you remove the forced normal condition using the no version of this command, you must enter
the write-memory command and restart the router.
Blocking discovery of G1 switch fabric modules
NOTE
This procedure requires that you restart your router.
In a router with both standard (G1) switch fabric modules and G2 HSF modules, you can block the
discovery of the G1 switch fabric modules by entering the system-init block-g1-sfm command.
Syntax: system-init block-g1-sfm
After you enter this command, enter the write -memory command and restart the router.

Brocade Communications Systems MLX Series Specifications

General

Brand	Brocade Communications Systems
Model	MLX Series
Category	Network Router
Language	English