3-node cluster using SDN with no VLAN

E

esnmb

New Member
Sep 4, 2024
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Hello, I am trying to setup a SDN network on my 3-node cluster. This is a flat network for my home lab with no vlans.
I tried using simple, vlan and QinQ zones but cannot seem to get my VM's to get any DHCP address from my router.

I tried using vlan 1 with VLAN and QinQ zones since I read that a simple zone is more or less an isolated network.

How can I get my VM's to communicate with my LAN?
 
Hi,
you can try vxlan, with a reduced MTU size.
For vlans, as for QinQ your switch needs to support that protocols. Simple zones are only local. Vxlans wrap the traffic in simple UDP packages, and the inner address information is embedded in that packages. So with a reduced MTU size on the vxlan interface, that should work with regular/simple switches.

The uplink configuration might require an additional interface, because the endpoint needs to be vxlan capable.

BR, Lucas
 
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