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Ethernet: Ethernet Card
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Ethernet connections are those found in networked offices, laboratories and residence hall rooms. An Ethernet connection is much faster than a dial-up phone line connection, but requires a computer to have an Ethernet card installed and configured properly.
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The connection between the hub in the wiring closet and the adapter card in the PC forms a single point- to-point Ethernet segment between two stations. The connection to the rest of the LAN involves active electronics in the hub. In current use, this is done with a repeater that copies every bit and propagates collisions.
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This is the Ethernet-Howto, which is a compilation of information about which ethernet devices can be used for Linux, and how to set them up. Note that this Howto is focused on the hardware and low level driver aspect of the ethernet cards, and does not cover the software end of things like ifconfig and route. See the Network Howto for that stuff.
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Most computers purchased today will either built-in Ethernet ports or have Ethernet card already installed. Sometimes, these computers will have Ethernet ports that can operate at 1 Gbps, and may be listed as 10/100/1000 Mbps. These will only operate at either 10 Mbps or 100 Mbps depending on location.
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All MX-series ESRs use the same software and DPC line cards, thereby increasing flexibility and decreasing the cost of building and operating an Ethernet infrastructure and services network. With both DPC-R (Layer 2 with MPLS) and DPC-X (Ethernet with MPLS) cards available, providers can build different parts of their network on a single platform to suit their particular needs. This eliminates the common two-platform architecture approach, which is not a cost-efficient model for providers.
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There are two types of Ethernet Cards. One is a separate card similar to a modem, but with only one, slightly larger, jack. The other is built into your motherboard, in which case there would be an Ethernet port on the back on your computer close to the USB and Mouse/Keyboard connections. If you are uncertain, contact ResTECH.
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Ethernet Card