>The ARP table might be bigger, but thats a different issue. But this is the problem that most designs are trying to solve. Large L2s are notoriously fragile.

>The ARP table might be bigger, but thats a different issue. But this is the problem that most designs are trying to solve. Large L2s are notoriously fragile. 1,000 nodes, 50-100 pods/node is a lot of ARPs. And sometimes you want partitions between endpoints for security/isolation. I agree with you about static assignment of addresses. But that's why (most) CNIs work with a controller of some kind for IPAM. IMO, the problem complexity is hard to compress. You need to distribute/manage MAC addresses, routes, and/or state. Different designs would favor one over another.