I have a local lab which does not have a physical switch and consists of 3 servers which are connected to each other Nics.
Now I want to implement vlans, want to know is it possible to setup vlans only with OVS and without any physical switches?
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What do you mean by "I want to implement VLANs"? OVS can generate VLAN tags, and even normal Linux VLAN interfaces can. How are the nodes connected - does each node have two connections? If so, I don't think it will work, since you need a single interface for tenant traffic as far as I know.– berndbauschFeb 9, 2021 at 12:13
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I meant there are two type of external network in openstacl , flat and vlan. I know about flat network all nodes are reside in one subnet for example 10.10.10.0/24 but I have two there nodes that are resided out of 10.10.10.0/24 thus I have to implement vlans as oppose to flat . Unfortunately I don't have a physical switch to understand vlan tagging and transfer the packet/frame to proper destination. So now I want to know that if the OVN or OVS can do something to prevent me buying a physical switch in my topology?– AliReza NaSRiFeb 10, 2021 at 15:05
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How are the nodes connected - does each node have two connections?– berndbauschFeb 10, 2021 at 15:07
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nodes are connected to each others through their Ethernets with cat 5 cables, no switch just connect directly to each other. yes each nodes has at leas two nics, one for vm management and the other for internet.– AliReza NaSRiFeb 12, 2021 at 3:28
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But how are the nodes connected to each other? If you have three nodes A, B and C, is A connected to B, then B to C? In this case I wonder how A communicates with C. Or are there two connection from each node to the other nodes? In this case, I don't think your setup works, since you need a single interface for tenant traffic if I am not wrong.– berndbauschFeb 12, 2021 at 3:53
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