
Optimizing Network Performance with Queuing and Compression • Chapter 9 381
To determine the bandwidth for precedence 4, we will insert 4 for
precedence level and calculate the lower half of the formula:
4+1
(1*5)+(3*10)+(5*2)=45
The output of the formula states that precedence 0 flows receive 1/45
of the interface bandwidth, precedence 2 flows receive 3/45 of the interface
bandwidth, and precedence 4 flows receive 5/45 of the interface bandwidth.
For example, assume we have two locations interconnected via a T1 cir-
cuit, as illustrated in Figure 9.3. By default, WFQ is enabled on each WAN
interface. Traffic is distributed between Voice over IP (VoIP) and ...