Hi @Hinzo 

Thanks for posting in our business forum.

Hinzo wrote

Router is connected to two switches

SX3206HPP 10g

SG2218P 1g

 

Sending data from a device on 10g to a device connected in 1g is very slow, seems due to congestion and dropped packets.

 

Setting flow control helps but not reaching the max of what 1g could do.

 

Is there a way to limit flow on any device on the network that communicates with a specific IP to 1g? -- I am only able to find bandwidth control to WAN.

You cannot limit based on the IP address if that device is not connected to the switch/router.

If this traffic only switches on a switch, it should be setting the rate limit on the switch.

You cannot do this on an IP-based level as sometimes it does not pass to the router. So, the router cannot decide it or do what you expect to be.

Doable on port-level.