Reference Guide

614 Brocade Fabric OS Command Reference
53-1004112-02
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