先决条件 – 区域网络类型 – LAN、MAN 和 WAN
局域网 (LAN)：
LAN 是一组网络设备，允许连接的设备之间进行通信。私有制拥有对局域网而非公共的控制权。 LAN 的传播延迟比 MAN 和 WAN 短。它覆盖最小的区域，如：学院、学校医院等。
城域网(MAN)：
MAN 覆盖的区域比 LAN 大，例如：小镇、城市等。MAN 连接 2 台或多台计算机，这些计算机以区域为单位，但位于同一个或完全不同的城市。 MAN 很昂贵，应该或可能不属于一个组织。
让我们看看 LAN 和 MAN 之间的区别：
| S.NO | LAN | MAN |
|---|---|---|
| 1. | LAN stands for Local Area Network. | Whereas MAN stands for Metropolitan Area Network. |
| 2. | LAN’s ownership is private. | But MAN’s ownership can be private or public. |
| 3. | The speed of LAN is high(more than MAN). | While the speed of MAN is average. |
| 4. | The propagation delay is short in LAN(less than MAN). | Whereas the propagation delay in MAN is average or moderate. |
| 5. | There is less congestion in LAN(local area network). | While there is more congestion in MAN(Metropolitan Area Network). |
| 6. | There is more fault tolerance in LAN. | While there is less fault tolerance. |
| 7. | LAN’s design and maintenance is easy. | While it’s design and maintenance is difficult than LAN. |
| 8. | LAN’s cost is high but less than MAN. | Whereas MAN’s cost is higher than LAN. |