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:

Access control lists (ACL)

Quality-of-service (QoS), including device and application port priority, ICMP rate-limiting, and QoS policies

Dynamic assignment of per-port or per-user ACLs and QoS through RADIUS authentication designated as “IDM”, with or without the optional identity-driven management (IDM) application

Virus throttling (VT) using connection-rate filtering

Mirroring policies, including switch configuration as an endpoint for remote intelligent mirroring

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, mirroring, and ACL policies 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 dynamic port ACLs and virus-throttling is determined as follows:

Dynamic port ACLs configured by a RADIUS server (with or without the optional IDM application) for an authenticated client determine the current resource consumption for this feature on a specified slot. When a client session ends, the resources in use for that client become available for other uses.

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.

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