Brocade Fabric OS Administrators Guide (Supporting Fabric OS v7.3.0) - Manual (Page 531)

For additional details about FEC, refer to Forward error correction on page 95.
Enabling FEC on a long-distance link
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the portCfgLongDistance command and include the -fecEnable option, or issue the
portCfgFec command with the --enable option.
3. Enter the portCfgFec --show command to verify the configuration.
switch:admin> portcfglongdistance 1/20 LS 1 -distance 122 -fecenable
FEC has been enabled.
Reserved Buffers = 982
Warning: port (132) may be reserving more credits depending on port speed.
switch:admin> portcfgfec --show 1/20
Forward Error Correction capable: YES
Forward Error Correction configured: ON
Disabling FEC on a long-distance link
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the portCfgLongDistance command and include the -fecDisable option, or issue the
portCfgFec command with the --disable option.
3. Enter the portCfgFec --show command to verify the configuration.
switch:admin> portcfglongdistance 1/20 LS 1 -buffers 500 -fecdisable
FEC has been disabled.
Reserved Buffers = 982
Warning: port (132) may be reserving more credits depending on port speed.
switch:admin> portcfgfec --show 1/20
Forward Error Correction capable: YES
Forward Error Correction configured: OFF
Enabling FEC on a long-distance link
Fabric OS Administrators Guide 531
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