I have 2 x MX-250 in HA mode with 2 x 1Gb WAN uplinks and 10 x MS225-48 port switches. I don't know yet if the local traffic is more north-south or east-west and I'm trying to figure out the best switching design.
* Do I need an additional aggregation switch, if so, what architecture will be more convenient? Spine-Leaf or 3-Tier?
* What aggregation switch will be most appropiate, a MS425 (10Gb aggregation), using SPF+ ports as uplinks to the MXs (is this possible)?
* Will it be a better idea to connect aal MS225 directly into the MXs using the SFP+ ports?
Thank you very much for your help.