Reference Guide

Brocade Fabric OS Command Reference 613
53-1004112-02
portBufferShow
portBufferShow
Displays the buffer usage information for a port group or for all port groups in the switch.
Synopsis portbuffershow [[slot/]port]
Description Use this command to display the current long distance buffer information for the ports in a port group. The port
group can be specified by giving any port number in that group. If no port is specified, then the long distance buffer
information for all of the port groups of the switch is displayed.
The following long distance information is displayed:
User Port
Index number of the port.
Port Type
E (E_Port), F (F_Port), G (G_Port), L (L_Port), or U (U_Port).
Lx Mode
Long distance mode.
L0
Link is not in long distance mode.
LE
Link is up to 10 km.
LD
Distance is determined dynamically.
LS
Distance is determined statically by user input.
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 desired_distance operand of the
portCfgLongDistance command). If the port is not configured in long distance mode,
certain systems might reserve buffers for the port. This field then displays the number of
buffers reserved for the port.
Avg Buffer Usage & FrameSize
The average buffer usage and average frame size for Tx and Rx.
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 operand of the portCfgLongDistance 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.