[pox-dev] setting link options

[Saurabh Agarwal]

This was an old post but I thought I should answer it in case someone
else had the same problem.

It appears that the problem must be that you're not specifying the
link type as tc (which is required to modify link parameters).

If you look at the example you've provided, notice how the parameter
TCLink is passed in the following line:

net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)

If instead, you wish to use a topology file and call mininet from
command prompt, you could specify the link type using the --link
option.

eg.

sudo mn --custom Custom.py --topo mytopo --link tc

Hope this helps.

PS: This is my first post here so I'm not sure if it ends up at the
right place. :) Apologies if it doesn't

Saurabh


On May 2, 2013, at 3:11 PM, Balázs Németh wrote:

>* Hi all!*>* *>* I would like to set a link some options (bandwidth), on one of my topos. *>* I tried it the way is shown in the corresponding mininet API example:*>* https://github.com/mininet/mininet/blob/master/examples/simple <https://github.com/mininet/mininet/blob/master/examples/simpleperf.py#L30>**The problem with, as it appears,**perf.py#L30 <https://github.com/mininet/mininet/blob/master/examples/simpleperf.py#L30>*

>* *>* I am making a simple custom topology, not using the API. But it won't work for me. The error message i got:*>*  unexpected keyword argument 'bw'*>* *>* The implementation of addLink() (in mininet.topo.Topo.addLink) says:*>* def addLink(self, node1, node2, port1=None, port2=None, **opts)*>* *>* Although, I am not sure, I fully understand how this "**arg" function parameter works in Python.*>* *>* thanks for your time,*>* Balázs*

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