Q. What are the 1- and 2-port Fast Ethernet HWICs?
A. The Cisco® 1- and 2-Port Fast Ethernet High-Speed WAN Interface Cards (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.
Q. Are there features not supported on the Fast Ethernet HWICs?
A. Yes. Features specifically not supported include Cisco Inter-Switch Link (ISL) trunking, Connectivity Fault Management (CFM), flow control, and online insertion and removal (OIR, hot-swappable).
Q. Can these interfaces be used as switch ports?
A. No, these are native Layer 3 interfaces, designed for routing. They can be configured to bridge using the router CPU. There is no switching application-specific integrated circuit (ASIC), nor are switching features supported.
Cisco 1- and 2-port Fast Ethernet High-Speed
Q. What are the 4- and 9-port Cisco® EtherSwitch® high-speed WAN interface cards (HWICs)?
A. The 4- and 9-port Cisco EtherSwitch HWICs are modular HWICs that provide line-rate Layer 2 switching across Ethernet ports using Cisco IOS® Catalyst® Software.
Q. Can I assign each switch port to a unique VLAN? If so, are there any limitations?
A. Each switch port can be assigned to its own VLAN, effectively providing four additional routed ports. However, there are serious performance and feature limitations to doing this. The VLAN interfaces are truly Layer 3 switching interfaces and are treated uniquely among interface types on the router. Many features are NOT supported or tested on these interfaces, including Point-to-Point Protocol over Ethernet (PPPOE) termination, Layer 2 Tunneling Protocol Version 3 (L2TPv3) termination, MAC address assignment, Layer 3 QoS, and others. You should carefully test any desired feature and solution prior to deploying it.
Q. What is the connection speed to the router backplane of the EtherSwitch HWICs?
A. The 4-port HWIC connects to the backplane with a maximum throughput of 100 Mbps, while the 9-port HWIC can support a maximum bandwidth of 200 Mbps. Actual performance will depend on many factors, including performance of the hosting router, other services configured on the hosting router, and the type of traffic stream being generated.
Q. What is intra-chassis stacking?
A. Intra-chassis stacking is defined as the ability to have multiple Cisco EtherSwitch HWICs connected with any two Cisco EtherSwitch ports in the same router. An example of intra-chassis stacking is placing two Cisco EtherSwitch HWICs in the same router connected together through any four ports on the HWICs.
Intra-chassis stacking is limited to two HWICs in any router. The HWICs must be connected externally using the Fast Ethernet interfaces and a crossover cable. Intra-chassis stacking allows all the Fast Ethernet interfaces on the two HWICs to participate in the same Layer 2 domain.
Q. What is the maximum number of VLANs supported for the Cisco EtherSwitch HWICs?
A. Both Cisco EtherSwitch HWICs support up to 15 VLANs on the Cisco Integrated Services Routers
Q. Is online insertion and removal (OIR) supported for the Cisco EtherSwitch HWICs?
A. The HWIC architecture does NOT support the OIR specification. OIR for the 4- and 9-port HWICs is not supported on the Cisco Integrated Services Routers.
Cisco EtherSwitch 4- and 9-Port High-Speed WAN Interface Cards
Q. What is a Cisco® Enhanced High-Speed WAN Interface Card (EHWIC)?
A. 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.
Cisco Enhanced High-Speed WAN Interface Cards
Overview of Cisco Interface Cards for Cisco Access Routers
Cisco Router" refers to the availability of Cisco routers Online for purchase and configuration over the internet. These high-performance networking devices enable seamless connectivity and data transmission, making them essential for businesses and individuals seeking reliable online connectivity solutions.
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