User's Manual

Technical Notes – QoS Features on BES50

Figure 10: BES50 DSCP to COS Mapping

4. ACL Based Traffic prioritization

Using the ACL classification rules, BES50 can also prioritize traffic based on the following IP header information

of the incoming IP packets:

• Source IP address

• Destination IP address

• Source port number

• Destination port number

• Protocol ID

Even though both BES50FE and BES50GE support traffic prioritization based on these five tuples in the IP

header, the configuration process on these two units are different from each other.

BES50FE Configuration

Step (1) Define the traffic classifier in an extended Access Control List (ACL)

This step describes the classification criteria to identify a subset of incoming traffic for the desired QoS

treatment. The criteria are based on the five tuples in the IP header.

NOTE:

The action associated with the ACL rule MUST be set to “Permit”.