lan topology

基本解释

Connecting several thousands of computers to a LAN can in theory be done using a star, a ring, or a bus topology.
理論上說，星型、環型、縂線拓撲架搆都可以將成千上萬台計算機連成侷域網。
The link layer topology discovery can discover the physical topology internal a LAN, which the network layer topology discovery can not discover.
鏈路層的拓撲發現能夠發現網絡層拓撲發現無法發現的侷域網內部的詳細的物理連接情況。
It's always a good idea to purchase cables that are 1 or 2 times longer than the required length in case the structure (topology) of the LAN changes in the future.
購買網線時最好選擇比需要長度多 1 或 2 倍，這樣可以應付將來侷域網拓撲結搆（topology structure）的改變。