Our servers are distributed to 2 racks in a datacenter, each rack having its own switch. The communication between the racks are made by the link between these two switches. The bandwidth between those switches is as low as '2 mbps', so our team lead rightfully suspects that might be a bottleneck so we want to monitor bandwidth usage between those two switches using SNMP.
The major problem is, switches are configured as completely layer-3 invisible, so there is no way to reach the switches using tcp/ip. How should I proceed?