Dell Brocade G620 Brocade 8.0.1 Fabric OS Command Reference - Page 638

portBufferShow Link Distance For L0 (not in long distance mode), the command displays the fixed distance based on port speed, for instance: 10 km (1 Gbps), 5 km (2 Gbps), 2 km (4 Gbps), or 1 km (8 Gbps). For static long distance mode (LE), the fixed distance of 10 km displays. For LD mode, the distance in kilometers displays as measured by timing the return trip of a MARK primitive that is sent and then echoed back to the switch. LD mode supports distances up to 500 km. Distance measurement on a link longer than 500 km might not be accurate. If the connecting port does not support LD mode, is shows "N/A". Remaining Buffers The remaining (unallocated and reserved) buffers in a port group. A hyphen in one of the display fields indicates that no relevant information is available; there may be no connection to a port, or the port is disabled, or the port is not an E_Port. When invoked without operands, this command displays the long distance buffer information for all the port groups of the switch. Notes The execution of this command is subject to Virtual Fabric restrictions that may be in place. Refer to "Using Fabric OS Commands" and "Command Availability" for details. Operands The following operands are optional: slot For bladed systems only, specifies the slot number of the port group to display, followed by a slash (/). port Specifies the number of a port associated with the port group, relative to its slot for bladed systems. Use switchShow for a list of valid ports. Examples To display the port buffer information: switch:admin> portbuffershow 17 User Port Lx Max/Resv Avg Buffer Usage & FrameSize\ Port Type Mode Buffers Tx Rx \ Buffer Needed Link Remaining Usage Buffers Distance Buffers 64 - 8 - ( - ) - ( - )\ 0 - - 65 - 8 - ( - ) - ( - )\ 0 - - 66 - 8 - ( - ) - ( - )\ 0 - - 67 - 8 - ( - ) - ( - )\ 0 - - 68 E LS 806 197(2012) 201(2044)\ 206 206 100km 69 E - 8 1(2016) 1(2020) 26 26 2km 70 E - 8 1(2012) 1(2036)\ 26 26 2km 71 E - 8 1(2008) 2(2052)\ 26 26 2km 614 Brocade Fabric OS Command Reference 53-1004112-02