Dell Brocade G620 Brocade 8.0.1 Fabric OS Command Reference - Page 721

portCfgLongDistance -distance distance This parameter is required when a port is configured as an LD or an LS mode link. In LD mode, the value of desired_distance is the upper limit of the link distance and is used to calculate buffer availability for other ports in the same port group. When the measured distance exceeds the value of distance, this value is used to allocate the buffers. In this case, the port operates in degraded mode instead of being disabled due to insufficient buffers. In LS mode, the actual link distance is not measured, instead the distance is used to allocate the buffers required for the port. -framesize frame_size Specifies the average frame size for LD and LS Mode. -buffer buffers Specifies the desired buffer for LD and LS mode. -fcenable Enables Forward Error Correction on 10 Gbps and 16 Gbps speed ports. -fecdisable Disables Forward Error Correction on 10 Gbps and 16 Gbps speed ports. FEC via TTS is always enabled on 32 Gbps speed ports. Examples To configure a switch port 118 to support a 100 km link and be initialized using the long distance link initialization protocol: switch:admin> portcfglongdistance 12/6 LS 1 -distance 100 switch:admin> portshow 12/6 portIndex: 118 portName: slot12 port6 portHealth: No Fabric Watch License Authentication: None portDisableReason: None portCFlags: 0x1 portFlags: 0x103 PRESENT ACTIVE E_PORT G_PORT U_PORT \ SEGMENTED LOGIN LocalSwcFlags: 0x0 portType: 24.0 portState: 1 Online Protocol: FC portPhys: 6 In_Sync portScn: 64 Segmented Flow control \ mode 0 port generation number: 14 state transition count: 12 portId: 017600 portIfId: 43c2001e portWwn: 20:76:00:05:1e:e5:cb:00 portWwn of device(s) connected: Distance: static (desired distance = 100 Km) portSpeed: N8Gbps FEC: Inactive Credit Recovery: Inactive LE domain: 0 Brocade Fabric OS Command Reference 697 53-1004112-02