netemu is a compact script to emulate latency between VMs using the Linux tc

I have 3 VMs and need to emulate latency between VM1 to VM3 and VM2 to VM3

  VM1                      VM2
(vnet0)                  (vnet1)
   |                        |
   |                        |
   \_____(Host Machine)_____/
               |
               |
            (vnet2)
              VM3

The following scripts are run on Host Machine

Delay between

• VM1-VM3 = 50ms
• VM2-VM3 = 50ms
• VM1-VM2 = 0ms

# ./delayfix.sh <delay>
./delayfix.sh 50

Delay between

• VM1-VM3 = 50 ± 20 ms
• VM2-VM3 = 50 ± 20 ms
• VM1-VM2 = 0ms

Bandwidth between

• VM1-VM3 = 100Mbps
• VM2-VM3 = 100Mbps
• VM1-VM2 = unlimited

# ./delaynor.sh <bandwidth> <delay> <jitter>
./delayfix.sh 100 50 20

Delay between VMs

• VM1-VM3 = 50 ± 20 ms
• VM2-VM3 = 50 ± 20 ms
• VM1-VM2 = 0ms

Bandwidth between VMs are taken from .csv file (source: 4G Data Trace)

# python3 netem.py 10 <delay> <jitter>
./delayfix.sh 10 50 20

Đào Hiệp - Bonavadeur - ボナちゃん
The Future Internet Laboratory, Room E711 C7 Building, Hanoi University of Science and Technology, Vietnam.
未来のインターネット研究室, C7 の E ７１１、ハノイ百科大学、ベトナム。