The Cisco Catalyst 3750 Metro Series switches are a new line of premier, customer-located switches that bring greater intelligence for Metro Ethernet access, enabling the delivery of more differentiated Metro Ethernet services. The switches feature bidirectional hierarchical quality of service (QoS) and traffic shaping, intelligent 802.1Q tunneling, VLAN translation, Multiprotocol Label Switching (MPLS), Ethernet over MPLS (EoMPLS), and Hierarchical Virtual Private LAN Service (H-VPLS) support and redundant AC or DC power. They are ideal for service providers seeking to deliver profitable business services, such as Layer 2, Layer 3, and MPLS VPNs, in several bandwidths and with different service-level agreements (SLAs). With flexible software options, the Cisco Catalyst 3750 Metro Series offers providers a cost-effective path for meeting current and future service requirements from enterprises and commercial businesses.As an addition to the Cisco Metro Ethernet access switching portfolio, which includes the industry-leading Cisco Catalyst 3550 and Cisco Catalyst 2950 series intelligent Ethernet switches, as well as the new Cisco ME 3400 Metro Ethernet Access Switches, the Cisco Catalyst 3750 Metro Series provides enhanced QoS, broader Layer 2 and Layer 3 VPN offerings, and power redundancy for carrier-class Metro Ethernet services with service-quality guarantees. By using Cisco Catalyst 3750 Metro Series switches for metro access, service providers are able to build a flexible, integrated network with intelligence from end to end.