Switch Fabric Modules; Switch Fabric Module Overview - Extreme Networks ExtremeRouting SLX 9850-4 Hardware Installation Manual

Switch Fabric Modules

• Switch fabric module overview................................................................................................................................................................. 119
• Precautions specific to the switch fabric module.............................................................................................................................. 120
• Time and items required for replacement............................................................................................................................................ 121
• Removing a switch fabric module........................................................................................................................................................... 121
• Inserting a switch fabric module...............................................................................................................................................................122
• Verifying switch fabric module operation............................................................................................................................................. 124

Switch fabric module overview

The switch fabric modules (SFMs) forward traffic between ports and the interface modules.
By default, five SFMs are installed in an ExtremeRouting SLX 9850 device chassis. At least one SFM is required for system operation. A
failure of any single SFM does not cause the system to completely fail.
If an SFM fails, the SFM LED on the management module and fan module displays amber, showing which SFM has failed, and a syslog
message is created. System traffic is automatically is re-balanced to other SFMs.
The following figure shows a SFM and the LEDs on the SFM. Since the SFM is behind the fan, these LEDs cannot be seen unless the
fan is removed.
NOTE
To check the status of the SFM without removing the fan, SFM status LEDs are provided on the fan and management
modules. For information about the SFM LEDs on the fan module, refer to
For information about the SFM LEDs on the management module, refer to
75.
ExtremeRouting SLX 9850-4 Hardware Installation Guide
9035474-02 Rev AA
Interpreting switch fabric module LEDs
Interpreting management module LEDs
on page 84.
on page
119