HP Network Direr Software Products manual Service Levels, Classification Rules Service Level

Key Concepts 629

Dropping The action of dropping allows the device to prevent blocked traffic from flowing on the network. This is achieved by discarding (dropping) packets that are identified via classification as traffic that should be blocked.

Service Levels The overall set of actions that are performed as a result of a particular classification are commonly known as a service level. Service levels enable a device configuration to be specified in terms of a mapping between the classification rules and the service levels. This enables several classification rules to share the same service level.

For example, a device may be configured with service levels for:

■Business critical traffic

■Voice traffic

■The CEO’s traffic

■Blocked traffic

■All other traffic

Each of these service levels could perform different queuing and marking of the packets assigned to them.The service level for blocked traffic would not need to perform queuing or marking as traffic assigned to it would be dropped. The device can then be configured with a set of classification rules which are mapped to the service levels as shown in Table 98.

Table 98 Service Levels

Classification Rules	Service Level
Traffic to or from the database server	Business Critical Service Level
Traffic to or from the email server	Business Critical Service Level
Traffic to or from the company website	Business Critical Service Level
Phone traffic	Voice Service Level
Traffic to or from the CEO’s PC	CEO’s Service Level
Game traffic	Blocked Service Level
All other traffic	All Other Traffic Service Level