Rule Configuration; Figure 127 Bandwidth Management Rule Configuration; Table 93 Sub-Classes Of Af Services - ZyXEL Communications P-660HWP-D1 User Manual

PHB consists of two types of services: EF (Expedited Forwarding) and AF (Assured
Forwarding). EF has higher priority. EF guarantees services with minimal loss and delay. AF
has four sub-classes, each with three levels of importance (drop precedence). A high drop
precedence means low importance.

Table 93 Sub-Classes of AF Services

DIFFSERV PRIORITY
SUB-CLASS4
SUB-CLASS3
SUB-CLASS2
SUB-CLASS1

15.10.2 Rule Configuration

Click the Edit icon or select User Defined from the Service drop-down list in the Rule Setup
screen to configure a bandwidth management rule. Use bandwidth rules to allocate specific
amounts of bandwidth capacity (bandwidth budgets) to specific applications and/or subnets.

Figure 127 Bandwidth Management Rule Configuration

P-660HWP-D1 User's Guide
LOW DROP MEDIUM DROP
PRECEDENCE PRECEDENCE
AF41 AF42
AF31 AF32
AF21 AF22
AF11 AF12
Chapter 15 Bandwidth Management
HIGH DROP
PRECEDENCE
AF43
AF33
AF23
AF13
223