Cisco HWIC-4ESW and HWIC-D-9ESW
EtherSwitch Interface Cards
First Published: May 17, 2005
Last Updated: July 28, 2010
This document provides configuration tasks for the 4-port Cisco HWIC-4ESW and the 9-port
Cisco HWIC-D-9ESW EtherSwitch high-speed WAN interface cards (HWICs) hardware feature
supported on Cisco 1800 (modular), Cisco 2800, and Cisco 3800 series integrated services routers.
Cisco EtherSwitch HWICs are 10/100BASE-T Layer 2 Ethernet switches with Layer 3 routing
capability. (Layer 3 routing is forwarded to the host and is not actually performed at the switch.) Traffic
between different VLANs on a switch is routed through the router platform. Any one port on a
Cisco EtherSwitch HWIC may be configured as a stacking port to link to another Cisco EtherSwitch
HWIC or EtherSwitch network module in the same system. An optional power module can also be added
to provide inline power for IP telephones. The HWIC-D-9ESW HWIC requires a double-wide card slot.
This hardware feature does not introduce any new or modified Cisco IOS commands.
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release. To find information
about the features documented in this module, and to see a list of the releases in which each feature is
supported, see the
EtherSwitch Cards" section on page
Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS
software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An
account on Cisco.com is not required.
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"Feature Information for the Cisco HWIC-4ESW and the Cisco HWIC-D-9ESW
104.