The Cisco ML cards are Ethernet switching modules for integration into a SONET/SDH optical transport platform. The cards extend the multiservice capabilities and flexibility, offered by the Cisco platform.
Layer 3 switching, layer 2 switching, auto-negotiation, PoS (Packet over SONET), VLAN support, Quality of Service (QoS), IP Precedence, Deficit Weighted Round Robin (DWRR), Class of Service (CoS), Strict Priority (SP)