Default

10

Medium
(Normal Traffic)

Normal traffic.

All traffic is assigned to this class by default.

Urgent

15

High
(Interactive Traffic)

Traffic that is highly sensitive to delay. For example, IP telephony, videoconferencing, and interactive protocols that require quick user response, such as telnet.

Note that the weight (amount of bandwidth) allocated to this class is less than the weight allocated to the “Important” class. The "Urgent" class is ideal for delay-sensitive traffic that does not demand a high amount of bandwidth.

Important

20

Medium
(Normal Traffic)

Important traffic that requires a high allocation of bandwidth, but which is not exceptionally sensitive to delays. For example, you can prioritize the HTTP traffic of a company's executive officers over other types of traffic, by assigning it to the “Important” class.

Low Priority

5

Low
(Bulk Traffic)

Traffic that is not sensitive to long delays, and which does not require a high guaranteed bandwidth. For example, SMTP traffic (outgoing email).