Brocade Network OS Command Reference v4.1.0 User Manual
Page 855
Network OS Command Reference
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show interface FibreChannel
2
LD—Link is from 5 km through 10 km.
LE—Distance is determined dynamically.
LS—Distance is determined statically by user.
Max/Resv Buffers
The maximum or reserved number of buffers that are allocated to the port
based on the estimated distance (as defined by the desire-distance
command). If the port is not configured in long distance mode, some
systems might reserve buffers for the port. This field then displays the
number of buffers reserved for the port.
Buffer Usage
The actual number of buffers allocated to the port. In LD mode, the number
is determined by the actual distance and the user-specified desired
distance (as defined by the desired-distance command).
Needed Buffers
The number of buffers needed to utilize the port at full bandwidth
(depending on the port configuration). If the number of Buffer Usage is less
than the number of Needed Buffers, the port is operating in the buffer
limited mode.
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, Brocade switches
use a proprietary algorithm to estimate distance across an ISL. 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.
NOTE
A hyphen in one of the Buffer information 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.
Usage Guidelines
This command applies only to Brocade VDX 6730 switches.
Examples
To view Fibre Channel port statistics:
switch# show interface FibreChannel 66/0/1
fibrechannel 66/0/1 is up.
Protocol state is up (connected)
Pluggable media present
LineSpeed Actual:
400,800_MB/s
PortSpeed:
N8Gbps
portDisableReason:
None
PortId:
427900
PortIfId:
4302303f
PortWwn:
20:79:00:05:33:67:26:78
Distance:
normal
Last clearing of show interface counters: 00:00:00
Interrupts:
0
Link_failure: 0
Frjt:
0
Unknown:
0
Loss_of_sync: 1
Fbsy:
0
Lli:
9
Loss_of_sig:
2
Proc_rqrd:
5
Protocol_err: 0
Timed_out:
0
Invalid_word: 0
Rx_flushed:
0
Invalid_crc:
0
Tx_unavail:
0
Delim_err:
0