Asymmetric links in mininet

Question

I want to use mininet to test a small network with some asymmetric links, but I have not found any information about it. Could someone have an idea to simulate these kind of links.

I mean an ADSL connection between a host and a switch. I can set TClink with a bw specific but this would work both ways ( upload and download). I would like to have a bw for upload and a different one for download. — Gabriel Jaime Becerra Eslava, Jul 27 '17 at 09:24

score 0 · Answer 1 · answered Jul 27 '17 at 12:40

It is possible to set different limitations to the different interfaces of the same link. As this link suggests, assuming that in your topology you have created a host connected to a switch, like this :

switch1 = self.addSwitch('s1')
host1 = self.addHost('h1')
self.addLink(host1, switch1, bw = 1000)

you can set different bandwidth to one of the host's interfaces like this :

intf = h1.intf()
info( "Setting BW Limit for Interface " + str(intf) + " to " + str(TARGET_BW) + "\n" )
intf.config(bw = TARGET_BW, smooth_change = True)   //smooth_change=True or False

assuming that you have defined something like :

TARGET_BW = 500

after your imports.

Asymmetric links in mininet

1 Answers1