I realize that the AN-520-RT is new, but it does not have enough LAN ports and it needs a big brother. When using dual-WAN, the 520-RT has only 1 LAN port.
This new, updated router needs to have the following features:
1) Dedicated 2.5G WAN1 port
2) Dedicated 2.5G WAN2 port
3) At minimum, 3 dedicated LAN ports (at least 1 being 2.5G)
4) Optional 2.5G SFP ports for WAN or LAN use
Why do I think this is needed?
More reliable power control. The main PDU used for network power control needs to be directly connected to the router. Connecting the main PDU directly to the router means that it is NOT at the mercy of flaky downstream devices. Over these many years, we have seen switches go into limbo, offline states which breaks access to the PDUs control. Pakedge always highly recommended this topology. The Pakedge RK1 has 5 LAN ports. In large installations, we would connect as many as 4 PDUs directly to the RK1. This has been virtual lifesaver at times. Of course, the RK1 is an older device and is not something we should be using going forward.
Thank you