Cisco HWIC-2FE Cabling

The Cisco Fast Ethernet HWICs are singlewide interface cards, available as a 1-port HWIC (HWIC-1FE) and as a 2-port HWIC (HWIC-2FE), that provide Cisco modular and integrated services routers with additional Layer 3 routed ports.

The Cisco High-Speed WAN Interface Card (EHWIC) is an updated and enhanced version of the current HWIC for the Cisco Integrated Services Router Generation 2 (ISR G2). The EHWIC offers greater speeds (up to 800 Mbps bidirectionally) and higher port density than the current WIC. It also has a third row of pins for increased power to the cards, as well as support for Enhanced Power over Ethernet (EPoE) with up to 20 watts per port. Furthermore, the EHWICs have a connection to the traditional router CPU and the new Multi-Gigabit Fabric (MGF) backplane. EHWICs are available in single-wide and double-wide form factors.

While researching solutions, you remember some of the new benefits the more recent L2TPv3 can provide. As you research some of the benefits of L2TPv3 you learn that a Layer 2 connection can be extended across a Layer 3 network using a feature called x-connect or a “pseudo-wire “. As you investigate further the requirements and configuration you realize you have everything needed to make this connectivity scenario happen. The hardware involved is a Cisco 2811 router at the remote distant building (across a L3 WAN) with the guest Internet router at the main site also being a 2811 both running a 12.4 T code that supports L2TPv3. An obvious requirement is IP connectivity between each 2811 router for the “pseudo-wire” to function. The remote router at the distant location is reachable already since it’s within your company’s routing (table) domain while the guest Internet router is L3 reachable via a management interface.

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