The M4000 Mobile Backhaul access/aggregation CSR (Cell Site Router) 1U height chassis provides a variety of solutions to configure the unit according to the network environment. The M4000 is comprised of 32 optical 10/25GE ports and 2 100GE ports. The M4000 can be used for a variety of new, revenue-generating applications, for example as L2/L3 Ethernet LAN switches in high rise buildings or as datacenter application and aggregation switches. Additionally, M4000 switch helps to enhance network efficiency through offering dedicated L3 functionality.