fec
   
   
      Configures Forward Error Correction
                                (FEC) on either a 100 GbE port or a
         channelized 100 GbE port operating at 25 Gbps speed. 
      
    
      Syntax
         
         
            - 
               default fec port {slot/port[/sub-port][-slot/port[/sub-port]][,...]}
                
- 
               fec
                     {auto|cl91|cl108|cl74}
                
- 
               no fec port {slot/port[/sub-port][-slot/port[/sub-port]][,...]}
                
Command Parameters
         
         
            
               - {auto|cl91|cl108|cl74}
- Configures FEC on either a 100 GbE port or a
                  channelized 100 GbE port operating at 25 Gbps speed. On the 100 GbE ports, only
                  the Clause 91 and Clause 108 options are supported. On channelized ports, you can
                  configure either Clause 108 for extra latency or Clause 74 for reduced latency.
                  You can also configure the auto option to automatically configure FEC based on port speed and
                  pluggable module type.
- FEC is not supported on 100 Gbps
                  ports that operate at 40 Gbps speed or on a management port. On ports that support
                     FEC configuration, ensure that you
                  configure the same option at both end points. Otherwise, the link does not come
                  up.
Default
         
         The default is disabled.
      
      Command Mode
         
         GigabitEthernet Interface Configuration