A Ethernet LAN segment is a network connection made by a single unbroken network cable. The network cable have a length limit, because the signal will tenuate as they travel down the cable and finally be corrupted by the line noise.
The following table compares many Ethernet cable specifications for the speed and the maximum segment length.
| Ethernet specification | speed | cable | Maximum length |
| 10BASE-T | 10 Mbps | Twisted-pair | 100m |
| 10BASE-FL | 10 Mbps | Fiber-optic | 2000m |
| 100BASE-TX | 100 Mbps | Twisted-pair | 100m |
| 100BASE-FX | 100 Mbps | Fiber-optic | 400m |
| 1000BASE-T | 1000 Mbps | Twisted-pair | 100m |
| 1000BASE-LX | 1000 Mbps | Fiber-optic | 550m for multimode fiber or 10km for single-mode fiber |
| 1000BASE-CX | 1000 Mbps | copper | 25m |
When we need an Ethernet LAN longer than a single cable's maximum length, devices such as repeater, hub, switch and routers are needed to extend LAN segments. Notice that all computers attached to a given Ethernet segment compete for the same amout of bandwidth provided by the network media.
ICND1 and ICND2 break down
ehternet cables are still the ones that i use for my home networking applications ~:,
ReplyDelete