Designed for Carrier Ethernet, IP/Multiprotocol Label Switching provider edge (MPLS PE), mobile wireless backhaul, and enterprise WAN/metropolitan-area network (MAN) applications, the Cisco 7600 series Ethernet Services Plus 20-Gbps Line Cards (7600-ES+20) offer 20 Gbps of bandwidth with 20 ports of Gigabit or 2 ports of 10 Gigabit Ethernet interfaces. The cards feature hierarchical Quality of Service (QoS), locally significant VLANs, distributed MAC learning, and up to 16,000 Ethernet service instances per line card for rich services. The Cisco 7600 ES Plus line cards provide the unique ability to combine both Layer 2 and Layer 3 services on the same line card. The combination of native Ethernet Layer 2 switching, bridging, Virtual Private LAN Services (VPLS), Ethernet over MPLS (EoMPLS), and Layer 3 IP/MPLS routing distinguishes this line card among other products on the market, particularly in Carrier Ethernet applications.The innovative architecture of these industry-leading, premium ES Plus line cards is designed to deliver cost-effective high-touch features, combining both application-specific integrated circuit (ASIC) and network processor technologies for an optimal combination of performance and flexibility. The Cisco 7600 ES Plus line cards provide distributed forwarding with proven ASIC technology in the forwarding path, as well as for queuing and shaping functions to provide the maximum performance for these foundational features.