Users Guide

720 Fabric OS Command Reference
53-1002921-02
portCfgEportCredits
2
portCfgEportCredits
Configures normal distance E_Port buffer allocation.
SYNOPSIS portcfgeportcredits --enable [slot/]port credits
portcfgeportcredits --disable [slot/]port
portcfgeportcredits --show [slot/]port
portcfgeportcredits --help
DESCRIPTION Use this command to change the default credit allocation for a normal distance E_Port or EX_Port by
allocating the specified number of credits to the port. When port credit allocation is enabled, the number
of credits specified overrides the default E_Port credit allocation; that is, a new credit model is
constructed based on the user-configured credits value. When the configuration is disabled, the default
credit allocation (default credit model) is restored. Only a normal distance E_Port and EX_Port can utilize
the new credit model constructed by this command, and the allocated credits are reserved only for that
port.
The E_Port credit configuration is persistent across system reboots and High Availability (HA) failover.
Use the portcfgeportcredits --show command to display the configured credits.
Use the portBufferShow command to determine current port buffer allocations.
NOTES The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in
place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for
details.
The E_Port credits feature does not support ports configured as F_Ports, Mirror Ports, L_Ports, and
Trunk Areas. If E_Port credits are configured on ports, moving the ports from one logical switch to
another logical switch is not permitted.
The Fabric OS port configuration commands are not supported on FCoE ports.
The E_Port credits are mutually exclusive with F_Port buffers, longdistance, and ISL R_RDY mode.
OPERANDS This command has the following operands:
--enable
Enables the E_Port credit configuration on a specified port. A port and credits
allocation must be specified with this option.
--disable
Disables the E_Port credit configuration on a specified port.
--show
Displays the credits configured on a specified port.
slot
Specifies the slot number on bladed systems, followed by a slash (/).
port
Specifies the port number.