qos_project
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| qos_project [2017/12/15 11:37] – [8. [PO3] Analyzing QoS] carine | qos_project [2017/12/19 09:11] – [8. [PO3] Analyzing QoS] carine | ||
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| ===== -. [PO3] Analyzing QoS ===== | ===== -. [PO3] Analyzing QoS ===== | ||
| - | In this section, we have to consider different congestion scenarios: The link between the two routers will have a bandwidth of 16 Mb/s, 8 Mb/s and 5 Mb/s. | + | In this section, we have to consider different congestion scenarios: The link between the two routers will have a bandwidth of 16 Mb/s, 8 Mb/s and 5 Mb/s.For each case, we will be considering both the implementation and the absence of QoS. |
| __**1. 16Mb/s**__ | __**1. 16Mb/s**__ | ||
| + | |||
| + | - __Without QoS:__ | ||
| + | |||
| + | We have to create two different classes with exactly the same bandwidth allocated for each as if no QoS is applied. The following commands are used: | ||
| + | <code bash> tc class add dev eth1 parent 1:1 classid 1:10 hfsc ls rate 16000kbit ul rate 16000kbit </ | ||
| + | <code bash> tc class add dev eth1 parent 1:1 classid 1:20 hfsc ls rate 16000kbit ul rate 16000kbit </ | ||
| + | <code bash> iptables -t mangle -A POSTROUTING -o eth1 -p udp --dport 1234 -j CLASSIFY --set-class 1:10 </ | ||
| + | <code bash> iptables -t mangle -A POSTROUTING -o eth1 -p udp --dport 5201 -j CLASSIFY --set-class 1:10 </ | ||
| + | <code bash> iptables -t mangle -A POSTROUTING -o eth1 -p tcp --dport 5202 -j CLASSIFY --set-class 1:20 </ | ||
| + | |||
| + | - __With QoS:__ | ||
| First, we have to create a common class 1:1 for all types of traffic, as before. | First, we have to create a common class 1:1 for all types of traffic, as before. | ||
| Line 309: | Line 320: | ||
| * VLC video udp | * VLC video udp | ||
| * iperf udp traffic on destination port 5201 | * iperf udp traffic on destination port 5201 | ||
| + | **On the client side:** | ||
| + | <code bash> iperf3 -c 192.168.100.111 -u -b 50M -P 3 -t 80 -p 5201 </ | ||
| * iperf tcp traffic on destination port 5202, using the following commands: | * iperf tcp traffic on destination port 5202, using the following commands: | ||
| - | | + | **On the server side:** |
| - | <code bash> iperf3 -s -p 5202 </ | + | <code bash> iperf3 -s -p 5202 </ |
| - | **On the client side:** | + | **On the client side:** |
| - | <code bash> iperf3 -c 192.168.100.111 -P 3 -p 5202 -t 75 </ | + | <code bash> iperf3 -c 192.168.100.111 -P 3 -p 5202 -t 75 </ |
| + | The same commands found above are applied when configuring the link with a bandwidth of 4Mb/s and 8Mb/s. | ||
qos_project.txt · Last modified: 2021/08/28 09:58 by samer