4、sdn 网络性能的测试与验证

目录

1.1 创建基本的网络拓扑

1.2 测试丢包率

1.3 测试带宽

1.4 测试延迟

1.1 创建基本的网络拓扑

ubuntu@sdnhubvm:~[08:34]$ cd mininet/examples/ ubuntu@sdnhubvm:~/mininet/examples[08:39] (master)$ sudo mn *** Creating network *** Adding controller *** Adding hosts: h1 h2 *** Adding switches: s1 *** Adding links: (h1, s1) (h2, s1) *** Configuring hosts h1 h2 *** Starting controller c0 *** Starting 1 switches s1 ... *** Starting CLI:

1.2 测试丢包率

设置网络参数，丢包率

ubuntu@sdnhubvm:~/mininet/examples[08:41] (master)$ sudo mn --link=tc,loss=5 *** Creating network *** Adding controller *** Adding hosts: h1 h2 *** Adding switches: s1 *** Adding links: (5.00000% loss) (5.00000% loss) (h1, s1) (5.00000% loss) (5.00000% loss) (h2, s1) *** Configuring hosts h1 h2 *** Starting controller c0 *** Starting 1 switches s1 ...(5.00000% loss) (5.00000% loss) *** Starting CLI: mininet>

测试：（h1 ping h2 1000次，间隔为0.01s）

mininet> h1 ping -c 1000 -i 0.01 h2 PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data. 64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=5.63 ms 64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.153 ms 64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.111 ms 64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.087 ms 64 bytes from 10.0.0.2: icmp_seq=6 ttl=64 time=0.064 ms 64 bytes from 10.0.0.2: icmp_seq=7 ttl=64 time=0.266 ms 64 bytes from 10.0.0.2: icmp_seq=9 ttl=64 time=0.119 ms 64 bytes from 10.0.0.2: icmp_seq=994 ttl=64 time=0.126 ms 64 bytes from 10.0.0.2: icmp_seq=995 ttl=64 time=0.074 ms 64 bytes from 10.0.0.2: icmp_seq=996 ttl=64 time=0.045 ms 64 bytes from 10.0.0.2: icmp_seq=997 ttl=64 time=0.040 ms 64 bytes from 10.0.0.2: icmp_seq=999 ttl=64 time=0.455 ms 64 bytes from 10.0.0.2: icmp_seq=1000 ttl=64 time=0.274 ms --- 10.0.0.2 ping statistics --- 1000 packets transmitted, 820 received, 18% packet loss, time 11989ms rtt min/avg/max/mdev = 0.038/0.122/5.637/0.227 ms

1.3 测试带宽

设置带宽为10M

ubuntu@sdnhubvm:~/mininet/examples[08:48] (master)$ sudo mn --link=tc,loss=0,bw=10 *** Creating network *** Adding controller *** Adding hosts: h1 h2 *** Adding switches: s1 *** Adding links: (10.00Mbit 0.00000% loss) (10.00Mbit 0.00000% loss) (h1, s1) (10.00Mbit 0.00000% loss) (10.00Mbit 0.00000% loss) (h2, s1) *** Configuring hosts h1 h2 *** Starting controller c0 *** Starting 1 switches s1 ...(10.00Mbit 0.00000% loss) (10.00Mbit 0.00000% loss) *** Starting CLI:

验证

1.4 测试延迟

ubuntu@sdnhubvm:~/mininet/examples[09:01] (master)$ sudo mn --link=tc,loss=0,bw=10,delay='1ms' *** Creating network *** Adding controller *** Adding hosts: h1 h2 *** Adding switches: s1 *** Adding links: (10.00Mbit 1ms delay 0.00000% loss) (10.00Mbit 1ms delay 0.00000% loss) (h1, s1) (10.00Mbit 1ms delay 0.00000% loss) (10.00Mbit 1ms delay 0.00000% loss) (h2, s1) *** Configuring hosts h1 h2 *** Starting controller c0 *** Starting 1 switches s1 ...(10.00Mbit 1ms delay 0.00000% loss) (10.00Mbit 1ms delay 0.00000% loss) *** Starting CLI: mininet>