Dropping; Service Levels - 3Com 3C15500 - Network Director User Manual

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:
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
Table 98 Service Levels
Classification Rules
Traffic to or from the database server
Traffic to or from the email server
Traffic to or from the company website
Phone traffic
Traffic to or from the CEO's PC
Game traffic
All other traffic
Business critical traffic
Voice traffic
The CEO's traffic
Blocked traffic
All other traffic
98.
Key Concepts
Service Level
Business Critical Service Level
Business Critical Service Level
Business Critical Service Level
Voice Service Level
CEO's Service Level
Blocked Service Level
All Other Traffic Service Level
629