A router, very accurate separate were restricted to the upstream and downstream data flow, then fill in the above parameters, assuming the configuration of the 192.168.1.10 the IP address of the host is BT download, then the data flow of this host will be relatively large, this host data stream is divided into two parts: one part is to download it data from other servers, part of it is to upload data to the other host. The router's IP QoS will download and upload the.10 host to the two directions of the data traffic were limited.

Two, set the parameters of the router must first ensure that every IP address using the 100Kbps minimum downlink data bandwidth, so 11 hosts using a total of 1100Kbps bandwidth, this route downlink bandwidth resource of 2000Kbps total still remaining about 900Kbps, the router first to ensure the two main machine can use minimum downlink bandwidth to 100Kbps. The minimum bandwidth guarantee, two hosts and further downstream bandwidth demand, then more than 100Kbps traffic, the router uses polling, the effective bandwidth increases two hosts occupy the downlink data when the 192.168.1.10 which hosts the stream bandwidth reaches maximum when 1000Kbps, the router will not load forwarded more than 1000Kbps bandwidth data packet.

Three 192.168.1.11, but this host bandwidth in contention when data flow reached 1000Kbps after the host still needs more bandwidth, the router will increase all the time it takes up the effective downlink bandwidth to 2000Kbps, will no longer continue to forward over this bandwidth range of packet.