User's Manual

DH-PFM880 User Manual DaHua All Right Reserved
Page 29
Ingress Throughput when reach stable
Rate Limit(kbps) Burst(kBytes) (Mbps) Description
10000 0 29.587 Unlimited
10000 10 4.286 Stable
10000 100 8.037 Oblique up to stable
10000 1000 8.825 From 9.5 down to stable
10000 10000 8.6 From 28.5 down to stable
10000 40000 8.6
Hold on 10 seconds at 29.6, then
suddenly down to stable
The relationship of rate and burst for egress:
z Set burst less than 1/10 of rate limit, the rate curve is stable totally
z Set burst larger than rate limit, the rate curve will hold a while at a higher value then
down to stable
Below is the table that reflects the relationship between egress rate limit and burst.
Egress Throughput when reach stable
Rate Limit(kbps) Burst(kBytes) (Mbps) Description
20000 0 18.853 Stable
20000 20 19.021 Stable
20000 200 19.205 Stable
20000 2000 19.437 From 23.5 down to stable
20000 20000 19.2
Hold on 20 seconds at 24.5, then
suddenly down to stable
20000 80000 19.2
Hold on several minutes at 24.5,
then suddenly down to stable
7.8 VLAN Settings
The VLAN function allows user to create multiple virtual local area network. As
shown in figure 25, we add a VLAN on port wlan0. The VLAN ID is 10. The range of
VLAN ID is 2~4094. Each VLAN ID represents a different VLAN.