HP StorageWorks 4/16 Brocade OS Command Reference Manual Supporting Fabric OS - Page 480
PortCfgQos, Sets a ingress rate limit to reduce traffic fromthe specified port.
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2 PortCfgQos 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: 454 Fabric OS Command Reference 53-1000599-01