HP 6120XG ProCurve Series 6120 Blade Switches Management and Configuration Gui - Page 550

Monitoring Resources Viewing Information on Resource Usage Viewing Information on Resource Usage The switch allows you to view information about the current usage and availability of resources in the Policy Enforcement engine, including the following software features: ■ QoS through RADIUS authentication designated as "IDM", with or without the optional identity-driven management (IDM) application ■ Virus throttling (VT) using connection-rate filtering ■ Mirror policies. Other features, including: • Management VLAN • DHCP snooping • Dynamic ARP protection • Jumbo IP-MTU Policy Enforcement Engine The Policy Enforcement engine is the hardware element in the switch that manages quality-of-service, as well as other software features, using the rules that you configure. Resource usage in the Policy Enforcement engine is based on how these features are configured on the switch. Resource usage by virus-throttling is determined as follows: ■ A virus-throttling configuration (connection-rate filtering) on the switch does not affect switch resources unless traffic behavior has triggered either a throttling or blocking action on the traffic from one or more clients. When the throttling action ceases or a blocked client is unblocked, the resources used for that action are released. Resource usage by the following features (when configured globally or per VLAN), applies across all port groups (or slots with installed modules): ■ QoS configurations that use the following commands: • QoS device priority (IP Address) through the CLI using the qos device-priority command ■ Management VLAN configuration ■ Jumbo IP-MTU Resource usage on the following features, which are configured per-port, applies only to the slot or port group on which the feature is configured: ■ QoS applied per-port or per-user through RADIUS authentication ■ QoS policies per port through the CLI using service E-2