Amazing, TCP/IP service protocol, network topology summary

Network topology (Tpology)

Topology refers to the actual or logical connection form of network nodes. Physical topology refers to the actual wiring or distribution of nodes on the real network; logical topology describes the flow of data on the network.

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The following four types of topology are generally popular on LANs:

• Bus topology (Bs topology).
• Ring topology (Rng topology).
• Star topology (Sar topology).
• Hybrid topology.

1. Bus topology (Bs topology)

The bus topology is shown in Figure 2-1.

The bus topology is a linear transmission medium, just like the route of a bus, and each computer is like a bus stop. The bus topology is used by IEEE 802.3's 10 Base 2, 10 Base 5, Ethernet and IEEE 802.4 token bus network.

2. Ring topology

Figure 2-2 shows the ring topology.

Ring topology, as the name implies, connects all computers through a circular line, so it is a closed loop state. Each computer is connected to the closed loop, and the transmission medium is connected to a repeater, so the signal will not be weakened during the transmission process.

The ring topology is used by IEEE 802.5 Token Ring (IM token ring) and fiber optic network FDDI (Fiber Distributed Data Interface).

3.Sar topology

The star topology is shown in Figure 2-3.

Star topology is a network where each computer is connected to a central point and radiates outward from the center. The center is often a server plus a hub, and other computers are connected to the hub. The hub was originally used to help engineers solve Ethernet problems, but has now developed into a multifunctional device. Star LANs and IEEE 802.3 10 Base T networks use star topology.

4.Hbrid topology

Hybrid topology is a combination of the first three different topologies or multiple combinations, which is used to optimize multiple topologies and is applicable to local area networks (LNs), metropolitan area networks (MNs) and wide area networks (WNs).

Nowadays, the network topology is nothing more than the various network topologies mentioned above. Understanding the network topology can help us manage the network and troubleshoot network problems. The hybrid topology is shown in Figure 2-4.