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Data Sheet Cisco 4- and 8-Port Gigabit Ethernet Enhanced High-Speed WAN Interface Cards Product Overview ® The 4- and 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, and 1900 Series Integrated Services Routers (ISRs). These low-density Gigabit Ethernet switches offer small to medium-sized business (SMB) and enterprise branch-office customers a combination of switching and routing integrated into a single device (Figure 1). ® Integration of these switches with Cisco IOS Software allows network administrators to manage a single device using Cisco management tools or the router command-line interface (CLI) for LAN and WAN management needs. This approach reduces network complexity, lowers maintenance contract costs, and lessens staff training needs. It also simplifies software qualification efforts and delivers a consistent user experience at branch offices. Additionally, these low-density Gigabit Ethernet switching modules enable Cisco's industry-leading power initiatives, Cisco EnergyWise, Cisco Enhanced Power over Ethernet (ePoE), and per-port Power over Ethernet (PoE) power monitoring, which enhance the ability of the branch office to scale to higher performance requirements and still meet environmental initiatives for IT teams to operate a power-efficient network. The 4- and 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 PoE support on all four ports. The 8-port Gigabit Ethernet EHWIC has eight 10/100/1000 switched Gigabit Ethernet ports, with a PoE support option on all 8 ports. The new features for the Gigabit Ethernet EHWICs include: 8 quality-of-service (QoS) queues per port, Shaped Deficit Weighted Round Robin (SDWRR), dynamic secure port, intrachassis cascading, up to 20W of PoE per port, and PoE per-port monitoring and policing. Multigigabit Fabric (MGF) is enabled for direct module-to-module communication. Figure 1. Four- and 8-Port Cisco Gigabit Ethernet EHWICs Secure Network Connectivity for Data, Voice, and Video When inserted in a Cisco 1900, 2900, or 3900 Series ISR, the Gigabit Ethernet EHWICs provide a fully integrated, secure networking and converged IP communications solution. From a single platform with an integrated switch, you can connect IP phones, wireless access points, and IP-based video cameras to your network and power them using the IEEE 802.3af or Cisco ePoE. With the optional integration of Cisco Unified Communications Manager Express, the router can also provide call processing for the phones. As users attempt network access, the Gigabit Ethernet EHWIC can use IEEE 802.1x to validate the credentials of the end device and place the users in the appropriate ™ VLAN or Cisco TrustSec group. As the end-user data leaves the LAN, the router can then encrypt the traffic and place it on a multitude of VPNs, securing the communications among branch offices and central sites. © 2010-2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 1 of 11

Data Sheet Features and Benefits The Cisco Gigabit Ethernet EHWICs provide increased performance levels, enhanced per-port security, ease of configuration, and, with intermodule cascading capabilities, they allow for additional ports expandability over time. Table 1 lists some important business benefits of deploying an integrated switching solution. Table 1. Cisco Gigabit Ethernet EHWICs Business Benefits Customer Needs How Addressed by Cisco EHWICs Total Cost of Ownership ● Scaled network infrastructure across multiple sites ● Decreased costs of operating multiple devices at the branch...

Data Sheet Additional PoE features include: ● Per-port power consumption control allows you to specify a maximum power setting on an individual port. ● Per-port PoE power sensing measures the actual power being drawn, enabling more intelligent control of powered devices. ● The Cisco PoE MIBs provide proactive visibility into power usage and allow you to set different power-level thresholds. ● Cisco Discovery Protocol Version 2 allows the Cisco EHWICs to negotiate a more granular power setting than IEEE classification provides when connecting to a Cisco powered device such as IP phones or...

Data Sheet Figure 3. Typical Data, Voice, Video, and Wireless Access Points Converged Deployment for a SMB When deployed in a unified communications environment, the 4- or 8-port Cisco Gigabit Ethernet EHWICs transparently interoperate with analog or digital time-division multiplexing (TDM) voice gateway modules and Cisco Unified Communications Manager Express IP Telephony, Cisco Survivable Remote Site Telephony (SRST), or Cisco Unified Border Element solutions. The Cisco Gigabit Ethernet EHWIC with the optional PoE provides IP phone power and phone discovery for IP phones. In addition, the...

Data Sheet Feature Benefit Intrachassis stacking or cascading ● Grouping EHWIC switch modules together is called cascading. The EHWIC switch modules are capable of cascading on all Cisco Integrated Services Routers Generation 2 (ISR G2) platforms using the internal MGF. ● Cascading of multiple EHWIC switches over the MGF allows multiple EHWICs to behave as a single switch. ● Layer 2 switching of packets can be internal to each EHWIC switch or they can go through the MGF when multiple EHWIC switch modules in the system are acting as a unified switch. The router CPU is not involved in this...

Data Sheet Feature EHWIC Switch IEEE 803.1s Multiple Spanning Tree (MST) Not supported IEEE 803.1w Rapid Spanning Tree Protocol (RSTP) New Feature Not supported IGMP Snooping Auxiliary VLANS Voice VLANS Maximum number of VLANs supported (platform dependent) 16-64 Maximum number of VLAN IDs 4095 SDWRR and fixed scheduling Eight QoS queues per port IEEE 802.1p for 802.1q tagged packets Port-based priority for untagged packets Priority override Switched Port Analyzer (SPAN) SPAN across multiple EHWICs Number of Spanning Tree Protocol instances 1 per VLAN (64 maximum) Per-port storm control...