Comparisons Of Red And Wred Operation - Extreme Networks BlackDiamond 6800 Installation And User Manual

Configuring the ATM Module
DSCP indicates that the packet should be dropped with a low or high probability, which
is to say, the DSCP of the packet controls which curve is used.
A. RED Operation on ATM Ports
100
Packet
Configured drop-probability
drop
probability
0
B. WRED Operation on ATM Ports
100
Packet
drop
probability
0
Figure 3-3: Comparisons of RED and WRED operation
3-38
Minimum
threshold
Average queue length
High-drop-probability
Low-drop-probability
Minimum
threshold
Average queue length
Maximum
threshold
Maximum
threshold
Asynchronous Transfer Mode (ATM) Module Installation and User Guide
ATM_010