netlab 2.0: Use Custom Bridges on Multi-Access Links
netlab uses point-to-point links provided by the underlying virtualization software to implement links with two nodes and Linux bridges to implement links with more than two nodes connected to them. That’s usually OK if you don’t care about the bridge implementation details, but what if you’d like to use a bridge (or a layer-2 switch if you happen to be of marketing persuasion) you’re familiar with?
You could always implement a bridged segment with a set of links connecting edge nodes to a VLAN-capable device. For example, you could use the following topology to connect two Linux hosts through a bridge running Arista EOS: