Installation Guide

Table Of Contents
Switch Fabric Modules
Switch fabric module overview................................................................................................................................................................. 113
Precautions specic to the switch fabric module..............................................................................................................................114
Time and items required for replacement............................................................................................................................................ 115
Removing a switch fabric module........................................................................................................................................................... 115
Inserting a switch fabric module...............................................................................................................................................................117
Verifying switch fabric module operation............................................................................................................................................. 118
Switch fabric module overview
The switch fabric modules (SFMs) forward trac between ports and the interface modules.
By default, ve 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 trac is automatically is re-balanced to other SFMs.
The following gure 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 Interpreting switch fabric module LEDs on page 84.
For information about the SFM LEDs on the management module, refer to Interpreting management module LEDs on page
75.
ExtremeRouting SLX 9850-8 Hardware Installation Guide
9035475-02 Rev AA 113