Objectives - D-Link DFL-900 User Manual

Part VIII
Bandwidth Management、High Availability
Figure 25-2 Use bandwidth management mechanism to shape the data flow on the uplink direction
2. As the above Figure 25-2 illustrated, LAN_1 PCs are using the E-Commerce service from the E-Commerce Server
(140.113.79.3), causing the blocking of the VPN transfer from LAN_1 to LAN_2. So we want to make sure that the VPN
tunnel links is reserved at least 600 kbps speed rate. And the free bandwidth will raise the transmission bandwidth of
LAN_1 PCs access the E-Commerce service.

25.2 Objectives

1. As the above diagram Figure 25-1 illustrates, LAN_1 PCs are browsing the web pages from the Web Server of Internet.
This occupies the bandwidth of PCs who are watching the video provided by the Video Stream Server (140.113.179.4),
causing the video to be blocked and to have poor quality. So we hope to guarantee the video quality of the LAN_1 PCs
which are accessing Video Stream Server.
The total bandwidth of ANY to LAN1 direction is 100 Mbps (The bandwidth of LAN1 interface is 100 Mbps). Here we
will make sure that PCs of LAN_1 have the smooth stream quality that must have at least 1% of LAN1 total bandwidth
(1000 kbps) speed rate.
Besides, we have another web server located at DMZ region. Because the web server is located at local area, so we can
assign larger bandwidth for this direction (web traffic from DMZ à LAN).
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