Brocade OS Command Reference Manual Supporting Fabric OS v6.0.0 (53-1000599-01, October 2007)

454 Fabric OS Command Reference
53-1000599-01
PortCfgQos
2
PortCfgQos
Enables or disables QoS on a port, sets the default configuration, and sets and resets the ingress
rate limit.
Synopsis portcfgqos --default | --disable | --enable [slot/]port
portcfgqos --setratelimit [slot /]port ratelimit
portcfgqos --resetratelimit [slot/]port
portcfgqos --help
Description Use this command to enable or disable Adaptive Networking/Quality of Service (AN/QoS) on a port,
to set or reset the ingress ratelimit for the port, and to set the default behavior.
The Adaptive Networking with QoS feature allows latency- sensitive applications to share storage
resources alongside throughput-intensive applications. Ingress Rate Limiting, a new feature
available in the Condor2/Goldeneye 2 ASIC, allows the ASIC to delay the return of BB credits to the
external device. By limiting the throughput on the ingress side of a port, existing congestion can be
removed or proactively avoided.
Notes This command is subject to Admin Domain restrictions that may be in place.
A Brocade Adaptive Networking license is required for using the QoS feature.
The QoS configuration of a port is applicable to that port only when it comes up as an E_port to
form an inter-switch link (ISL).
Qos configuration is persistent across system reboots.
Operands This command has the following operands:
--default Applies the default Qos configuration to the specified port. QoS will be
enabled by best effort based on availability of buffers.
--disable Disables Qos configuration on the specified port.
--enable Enables Qos configuration on the specified port.
--resetratelimit Turns off the ingress rate limiting feature on the specified port.
--setratelimit Sets a ingress rate limit to reduce traffic fromthe specified port. This
configuration is applicable only to F/F_Ports. For E/EX_ports, this
configuration would not be effective. The ingress rate limit is enforced only
when a given port can run at a speed higher than the speed specified in the
configuration. For example if the rate limit is set at 4 Gbps and the port
comes online only at 2 Gbps, no enforcement is needed. Specify an ingress
rate in Mbps. Supported values for --setratelimit are: 200, 400, 600, 800,
1000, 1500, 2000, 2500, 3000, 3500, 4000, 5000, 6000, 7000, 8000.
--help Displays command usage.
Examples To enable QoS on a port:
switch:admin> portcfgqos --enable 3/15
To disable QoS on a port: