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Cisco Refurbished
Original Part No : EHWIC-D-8ESG-P=

8pt 10/100/1000EthernetSwtch Iface card w/PoE REMANUFACTURED

Availability: In stock

Available Quantity: 1400

Delivery Time: 2 to 4 week

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    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.

    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 office
    • Optimized IT resources
    • An integrated switch solution lowers operating costs, simplifies troubleshooting, and enables businesses to scale.
    • One vendor also means one support center, eliminating blaming among vendors, thereby reducing troubleshooting time.
    • Cisco SMARTnet ® support covers both ISRs and Cisco EtherSwitch devices.

    Ease of Management

    • Reduced network complexity and simplified branch-office router management
    • Single administration and configuration of LAN and WAN policies
    • Integrated switches allow simplified configuration and management.
    • CiscoWorks LAN Management Solution (LMS), Remote Monitoring (RMON1 and RMON2), and standards-based MIBs support provides configuration as well as detailed reporting and troubleshooting capabilities.
    • Simple Network Management Protocol Versions 1, 2, and 3 (SNMPv1, v2, and v3) offer comprehensive in-band management, and a CLI management console provides detailed out-of-band management.
    • The management interface uses standard SNMP or Secure Sockets Layer (SSL) to integrate Cisco and third-party management systems.

    Green IT

    • Cisco EnergyWise technology
    • Single power supply for Cisco EtherSwitch device and router
    • Cisco EnergyWise technology enables Cisco EtherSwitch devices to automatically reduce off-peak use of PoE.
    • These switches provide two to eight times lower power consumption than standalone switches.
    • Because no additional rack space or power supply is needed, there is less to rack, stack, and cool.


    Cisco EnergyWise Technology

    Cisco EnergyWise technology is an innovative architecture added to the Cisco 1900, 2900, and 3900 Series ISRs to promote companywide sustainability by reducing energy consumption across an entire network infrastructure. This technology extends the network as a platform for the power control plane for gathering, managing, and reducing power consumption of all devices, resulting in companywide optimized power delivery and reduced energy costs.
    Cisco EnergyWise technology encompasses a highly intelligent network-based approach to communicate messages that measure and control energy usage between network devices and endpoints. The network discovers Cisco EnergyWise manageable devices, monitors their power consumption, and takes action based on business rules to optimize power consumption. The technology uses a domain-naming system to query and summarize information from large sets of devices, making it simpler than traditional network management capabilities. The management interface of this technology using SNMP or SSL allows facilities and network management applications to communicate with endpoints and each other using the network as a unifying fabric.

    Enhanced Power over Ethernet

    Although PoE has been employed for more than a decade, the technology is still evolving. New and innovative applications continue to raise expectations for power requirements. The Cisco EHWICs take advantage of the increased power capabilities of the Cisco 1900, 2900, and 3900 Series routers. Table 9 provides information about total PoE power output per platform. Depending on the ISR series model, the available PoE power ranges from 80 to 1014 watts. The Cisco Enhanced EHWICs support not only IEEE 802.1af (15.4 watts) but also Cisco ePoE (20 watts).
    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 access points.

    Multigigabit Fabric

    The EHWIC switch has a gigabit connection to the MGF and transparently integrates into the system. Connecting over the MGF enables the EHWIC switch to directly communicate with other MGF-enabled modules in the system without involving CPU. Layer 2 switching of packets is thus either internal to each EHWIC switch or goes through the MGF when multiple MGF-enabled modules are in the system. The router CPU is not involved in this operation (Figure 2).

    Figure 2. Direct Module-to-Module Connection Without Involving CPU


    Small and Medium-Sized Branch Offices

    The Cisco Gigabit Ethernet EHWICs in a small to medium-sized enterprise branch-office data deployment scenario provide the flexibility of integrated routing and switching functions in one device. This scenario allows the deployment of high-speed connections between individual network resources such as client desktops, servers, IP phones, wireless access points, and video devices from a single device and at the same time allows for WAN connectivity at Layer 3 through the router (Figure 3).

    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 Cisco Gigabit Ethernet EHWIC supports separate VLAN configuration for IP phones. The auxiliary VLAN feature allows network administrators to segment phones into separate logical networks, even though the data and voice infrastructures are physically the same. The phone discovery feature allows the 4- and 8-port Cisco Gigabit Ethernet EHWICs to automatically detect the presence of an IP phone and supply power to it.

    Features and Benefits

    Table 2 provides an overview of the architecture, features, and benefits of the 4- and 8-port Cisco Gigabit Ethernet EHWICs, Table 3 lists other features of the new EHWICs, and Table 4 lists the maximum number of VLANs supported per platform.

    Table 2. Architecture, Features, and Benefits of 4- and 8-Port Cisco Gigabit Ethernet EHWICs





    4 or 8 10/100/1000BASE-TX ports

    • The switches offer line-rate forwarding for Layer 2 traffic on each port.

    Autosensing, autonegotiation, and Automatic Media-Dependant Interface Crossed Over (Auto-MDIX)

    • Autosensing allows the switch to detect the speed of the attached device and automatically configure the port for 10-,100-, or 1000-Mbps operation.
    • Autonegotiation allows the switch to automatically select half- or full-duplex transmission mode to optimize bandwidth on all the ports of the EHWIC.
    • Auto-MDIX allows the switch to automatically detect cable type (straight-through vs. crossover) between an attached device and the switch port.

    Integrated switching

    • Integrated switching provides fewer points of management for remote and small branch offices.

    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 operation.

    IEEE 802.1P QoS (Traffic Prioritization)

    • This feature supports QoS based on the IEEE 802.1P class of service (CoS) and port-based prioritization, allowing the switch to change the CoS settings of tagged packets on a per-port basis.
    • Each port has eight QoS queues. Strict priority is enforced by default. The routers support SDWRR with configurable weight on each queue

    802.1Q Trunking

    • This feature provides an industry wide VLAN tagging standard, allowing for trunks also to be set up to third-party devices.

    802.1D Spanning Tree Protocol

    • This industry-standard link layer network protocol ensures a loop-free topology between Layer 2 devices regardless of vendor. IEEE 802.1D Spanning Tree Protocol is turned on by default.

    Voice VLAN (VVLAN)

    • VVLANs enable Cisco IP phones to place voice and data in their own separate VLANs. The EHWIC switch port is manually configured as a trunk port to support voice and data VLANs on the same port. The switch then uses Cisco Discovery Protocol to dynamically configure the Cisco IP phones

    IEEE 802.1x Authentication

    • This client-server-based access control and authentication protocol restricts unauthorized devices from connecting to a LAN through publicly accessible ports.

    PoE (option)

    • Cisco Gigabit Ethernet technology with the appropriate PoE module and internal power supply can power Cisco IP phones and wireless access points. Support is provided for both IEEE 802.3af and enhanced PoE (ePoE).

    IP Multicast management support

    • The routers provide Internet Group Management Protocol (IGMP) snooping in hardware for management support.

    SNMP management

    • SNMP allows management of the MIB through a MIB browser.

    Cisco IOS Software CLI

    • This feature provides configuration through the Cisco IOS Software CLI and provides a common user interface for all the router functions.

    CiscoWorks support

    • CiscoWorks network management software enables manageability on a per-port and per-switch basis, providing a common management interface for Cisco routers, switches, and hubs.
    • SNMPv1, v2, and v3 (noncryptographic) and Telnet interface support delivers comprehensive in-band management, and a CLI management console provides detailed out-of-band management.
    • Cisco Discovery Protocol Versions 1 and 2 enable a CiscoWorks network management station to automatically discover the switch in a network topology.
    • Support is provided by the CiscoWorks LAN Management Solution.

    Cisco Discovery Protocol Versions 1 and 2

    • This protocol enables a CiscoWorks network management station to automatically discover the switch in a network topology.

    Cisco VLAN Trunking Protocol (VTP; client, server, and transparent modes)

    • Cisco VTP supports dynamic VLAN configuration across Cisco switches.

    Cisco Configuration Professional -based configuration and device management

    • This feature simplifies initial configuration of a switch through a web-based GUI, eliminating the need for more complex terminal emulation programs and CLI knowledge.
    • Cisco Discovery Protocol reduces the cost of deployment by helping less-skilled personnel set up switches quickly and simply.

    Status-indicator LEDs

    • Two LEDs per port provide visual indication of the switch-port status and PoE status.


    Table 3. Cisco Gigabit Ethernet EHWIC Features




    EHWIC Switch

    New Feature




    IEEE 02.1Q Trunking



    IEEE 802.1D Spanning Tree



    Static and dynamic MAC address learning



    IEEE 802.1x port-based and multiple supplicant



    IEEE 802.3af (15.4W)



    ePoE (20W)



    ePoE (20W)



    IEEE 802.1u (guest VLAN)



    IEEE 803.1s Multiple Spanning Tree (MST)

    Not supported


    IEEE 803.1w Rapid Spanning Tree Protocol (RSTP)

    Not supported


    IGMP Snooping



    Auxiliary VLANS



    Voice VLANS


    Maximum number of VLANs supported (platform dependent)



    Maximum number of VLAN IDs



    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



    Media Access Control (MAC) notification



    Dynamic secure port



    Secure port filtering (port security)



    Intrachassis cascading (no external link between EHWIC cards)



    Up to 100 secure MAC addresses



    Private VLAN edge (protected port)



    Protected port (across multiple EHWICs)



    Bridge protocol data unit (BPDU) guard






    Jumbo Frames



    VTP (client, server, and transparent modes)



    Per-VLAN Spanning Tree (PVST)



    Cisco EnergyWise technology

    Additional Information

    Weight (Kg) 1
    Datasheet URL
    Condition Refresh
    Module Type WAN Interface Card



    AED 0