Product Overview The 4- & 8-port Cisco Gigabit Ethernet Enhanced High-Speed WAN interface cards (EHWICs) can reduce your company's total cost of ownership (TCO) by integrating Gigabit Ethernet (GE) switch ports within Cisco 3900, 2900, & 1900 Series Integrated Services Routers (ISRs). These low-density Gigabit Ethernet switches offer small to medium-sized business (SMB) & enterprise branch-office customers a combination of switching & routing integrated into a single device. Integration of these switches with Cisco IOS Software allows network administrators to manage a single device using Cisco management tools or the router comm&-line interface (CLI) for LAN & WAN management needs. This approach reduces network complexity, lowers maintenance contract costs, & lessens staff training needs. It also simplifies software qualification efforts & delivers a consistent user experience at branch offices. in addition, these low-density Gigabit Ethernet switching modules enable Cisco's industry-leading power initiatives, Cisco Energy Wise, Cisco Enhanced Power over Ethernet (e Po E), & per-port Power over Ethernet (Po E) power monitoring, which enhance the ability of the branch office to scale to higher performance requirements & still meet environmental initiatives for IT teams to operate a power-efficient network. The 4- & 8-port Gigabit Ethernet EHWICs provide line-rate Layer 2 switching across onboard Gigabit Ethernet ports. The 4-port Gigabit Ethernet EHWIC has four 10/100/1000 switch ports, with options for Po E support on all four ports. The 8-port Gigabit Ethernet EHWIC has eight 10/100/1000 switched Gigabit Ethernet ports, with a Po E support option on all 8 ports. The new features for the Gigabit Ethernet EHWICs include: 8 quality-of-service (Qo S) queues per port, Shaped Deficit Weighted Round Robin (SDWRR), dynamic secure port, intrachassis cascading, up to 20W of Po E per port, & Po E per-port monitoring & policing. Multigigabit Fabric (MGF) is enabled for direct module-to-module communication.