Juniper Networks 1-Port Gigabit Ethernet IQ PIC (Uses SFP Optics Module - See Interface Accessories section) Ethernet's flexibility, cost effectiveness, and proven interoperability, along with a continuous stream of enhancements have made it a widely adopted form of connectivity - from data centers and peering at Internet exchange points to the growing trend of metropolitan Ethernet access. The Juniper Networks portfolio of Ethernet interfaces is broad, supporting various port densities of 10/100 Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet on the M-series and T-series platforms.Juniper Networks has further enhanced its portfolio with the advent of Ethernet Intelligent Queuing (IQ) Physical Interface Cards (PICs). These advanced PICs are based on the Q Performance Processor (QPP), a custom high-performance ASIC designed to deliver granular per-VLAN quality-of-service (QoS) capabilities along with extensive instrumentation and diagnostics on a per-VLAN and per-MAC address basis.Ethernet IQ PICs have been combined with the JUNOS virtual private LAN service (VPLS) capability to deliver a metro Ethernet service. VPLS enables service providers to deliver true multipoint-to-multipoint Ethernet services over their IP/MPLS networks across both single metropolitan and geographically disparate metro areas. This compelling new capability enables the provider edge (PE) routers to automatically build a full mesh of LSPs and to switch Ethernet frames based on MAC address into the appropriate LSP, thereby leveraging IP/MPLS to provide a new level of scalability and resiliency that was previously unavailable in purely switched metropolitan Ethernet infrastructures.Juniper Networks PICs enhance network scalability and flexibility in both core and edge networks by supporting predictable performance, standards-based features, granular QoS, and a wide range of port densities and speeds.