CCNA LAB Practice - Ethernet CABLES

Ethernet CABLES

                                

Objective

This lab demonstrates how to make an Ethernet Cables.

The types of Ethernet cables are:

1)      Straight-through cable

2)      Crossover cable

3)      Rolled cable

i. Straight-Through Cable

The straight-through cable is used to connect

1)      Host to switch or hub

2)      Router to switch or hub

Four wires are used in straight-through cable to connect Ethernet devices. It is relatively

simple to create ; Figure shows the four wires used in a straight-through Ethernet

cable.

Diagram

Notice that only pins 1, 2, 3, and 6 are used. Just connect 1 to 1, 2 to 2, 3 to 3, and 6 to 6. However, remember that this would be an Ethernet-only cable and wouldn’t work with Voice, Token Ring, ISDN, etc.

ii. Crossover Cable Cable

The crossover cable can be used to connect

1)      Switch to switch

2)      Hub to hub

3)      Host to host

4)      Hub to switch

5)      Router direct to host

The same four wires are used in this cable as in the straight-through cable; we just connect different pins together. Figure shows how the four wires are used in a crossover

Ethernet cable.

Notice that instead of connecting 1 to 1, etc., here we connect pins 1 to 3 and 2 to 6 on each side of the cable.

Diagram

iii. Rolled Cable

Although rolled cable isn’t used to connect any Ethernet connections together, you can use a rolled Ethernet cable to connect a host to a router console serial communication (com) port.

If you have a Cisco router or switch, you would use this cable to connect your PC running HyperTerminal to the Cisco hardware.

Eight wires are used in this cable to connect serial devices, although not all eight are used to send information, just as in Ethernet networks. Figure shows the eight wires used in a rolled cable.

Diagram

This is  probably the easiest cable to make, because you just cut the one end off on one side of a straight-through cable and reverse the other end.

Once you connect the cross cable from your PC to the Cisco router or switch, you can start HyperTerminal to create a console connection and configure the device