topology change的用法和樣例：
例句
- Topology changes in one part of a network are not instantly known in other parts of the network due to propagation delay.
由于傳播延遲，某部份的網(wǎng)路拓撲改變時(shí)，在網(wǎng)路的另一個(gè)部分并不見(jiàn)得能立即知道。 - When the network topology changes, switches and bridges recompute the spanning-tree and cause a disruption in network traffic.
當網(wǎng)路拓撲改變，交換器與橋接器會(huì )重新計算擴充樹(shù)，此時(shí)會(huì )導致網(wǎng)路流量的中斷。
