Hi to all,
I want to install to the new building network. As you can see, the connection is fiber. The main building has a draytek router and a ubiquity switch. Simple network, no vlans, access list, filtering etc.
My idea, is to install an rb5009 at the main building and a crs326 at the new building with fiber sfp 1g or 10g. But, the utp from ubiquity to rb5009 is 1gbit.
Any suggestion?
An other problem is that i want the new building i want to have different subnet from the main for better management and because i don’t have access to make changes to the existing network at the main builindg.
ps. The ubuquity has an free sfp port. If i connect ubiquity with the mikrotik router with fiber ?

Given Draytek is the router, IMO RB5009 is wasted money. Since Dratek and Ubiquity are 1G at best, connect Ubiquity and CRS326 directly with fiber.
The CRS326 supports Layer 3 routing with L3 Hardware Offload so it alone can do additional subnet proposed. Be aware L3 HW Offload has limits.
https://help.mikrotik.com/docs/display/ROS/CRS3xx%2C+CRS5xx%2C+CCR2116%2C+CCR2216+switch+chip+features
https://help.mikrotik.com/docs/display/ROS/L3+Hardware+Offloading
Its not only the internet connection. There are servers and nas connected to ubiquity. And there are no budget money limit.
There is no connection between network engineering technical advice and spending money for no particular purpose.
Network designs with the fewest possible parts tend to improve operations stability and overall reliability.
Consider the possibility this issue is an XY Problem https://xyproblem.info/
I can’t connect directry to ubiquity switch because the fiber has already been installed underground.
If i put a rb5009 with 2x 1gb utp (lacp ?) to ubiquity and 10gbit sfp from rb5009 to crs326?