layer 2 switch which runs within a virtual machine

Hi,

i am looking for a "virtual switch" just as WANem (which is a router "app" running on a knoppix within a vm) but just for layer 2. Basically I want to create a Network and simulate delay and frame loss between two switches: Device A <--> Switch A <--> Switch B <--> Device B.

I found already two projects which might look promising:

• https://www.openvswitch.org/
• http://lisa.mindbit.ro/ (apperantly not supported anymore)

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Does any1 might have any other options?

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