靜態與動態路由的比較 · Static and Dynamic Routing Comparison

Static and Dynamic Routing Comparison靜態與動態路由的比較

There are two ways that a router can learn where to forward packets to destination networks that are not directly connected:

路由器有兩種方式，可以學到如何將封包轉送到並非直接連接的目的網路：

Static routing:The router learns routes when an administrator manually configures the static route. The administrator must manually update this static route entry whenever an internetwork topology change requires an update. Static routes are user-defined routes that specify the outgoing interface on the router when packets should be sent to a specific destination. These administrator-defined routes allow a very precise control over the routing behavior of the IP internetwork.靜態路由：當管理員手動設定靜態路由時，路由器就學到該路由。每當網際網路拓樸改變需要更新時，管理員必須手動更新此靜態路由項目。靜態路由是使用者自行定義的路由，用來指定封包在傳送到特定目的地時，路由器要使用的出口介面。這些由管理員定義的路由，可以非常精確地控制 IP 網際網路的路由行為。
Dynamic routing:The router dynamically learns routes after an administrator configures a routing protocol that determines routes to remote networks. Unlike static routes, after the network administrator enables dynamic routing, the routing process automatically updates the routing table whenever the device receives new topology information. The router learns and maintains routes to the remote destinations by exchanging routing updates with other routers in the internetwork.動態路由：當管理員設定用來判斷通往遠端網路之路由的路由協定後，路由器就會動態學習路由。與靜態路由不同的是，網路管理員啟用動態路由後，只要裝置收到新的拓樸資訊，路由程序就會自動更新路由表。路由器會透過與網際網路中其他路由器交換路由更新，來學習並維護通往遠端目的地的路由。

The following are characteristics of static and dynamic routes:

以下是靜態路由與動態路由的特性：

Static routes靜態路由
- A network administrator manually enters static routes into the router.網路管理員手動將靜態路由輸入路由器。
- A network topology change requires a manual update to the route.網路拓樸改變時，需要手動更新路由。
- Routing behavior can be precisely controlled.可以精確控制路由行為。
Dynamic routes動態路由
- A network routing protocol automatically adjusts dynamic routes when the topology or traffic changes.當拓樸或流量改變時，網路路由協定會自動調整動態路由。
- Routers learn and maintain routes to the remote destinations by exchanging routing updates.路由器透過交換路由更新，來學習並維護通往遠端目的地的路由。
- Routers discover new networks or other changes in the topology by sharing routing table information.路由器透過分享路由表資訊，發現新的網路或拓樸中的其他變化。

Which statement about static and dynamic routes is true?關於靜態路由與動態路由，下列哪一項敘述正確？

Dynamic routes are manually configured by a network administrator, whereas static routes are automatically learned and adjusted by a routing protocol.動態路由是由網路管理員手動設定的，而靜態路由是由路由協定自動學習並調整的。Static routes are manually configured by a network administrator, whereas dynamic routes are automatically learned and adjusted by a routing protocol.靜態路由是由網路管理員手動設定的，而動態路由是由路由協定自動學習並調整的。Static routes tell the router how to forward packets to networks that are not directly connected, whereas dynamic routes tell the router how to forward packets to networks that are directly connected.靜態路由告訴路由器如何將封包轉送到未直接連接的網路，而動態路由告訴路由器如何將封包轉送到直接連接的網路。Dynamic routes tell the router how to forward packets to networks that are not directly connected, whereas static routes tell the router how to forward packets to networks that are directly connected.動態路由告訴路由器如何將封包轉送到未直接連接的網路，而靜態路由告訴路由器如何將封包轉送到直接連接的網路。