1.OSPF has no size limits and is suitable for intermediate to large networks.
OSPF没有大小限制，是适合中型到大型的网路。
2.Due to the link-state nature of OSPF, failover was much faster: the new routes were propagated in under 30 seconds.
由于OSPF是基于链路状态的，所以failover速度快得多：新的路由在30秒内就可以传播完成。
3.When a router starts an OSPF routing process on an interface, it sends a hello packet and continues to send hellos at regular intervals.
当路由器要在某介面开始OSPF路由程序时，它送出一个hello封包且定期持续送出hello。
4.NBMA (non-broadcast multiple access) is one of four network types in the OSPF (Open Shortest Path First) communications protocol.
NBMA（非广播多路访问网络）是OSPF（开放最短路径优先）通信协议中四种网络的一种。
5.OSPF is a kind of link state route protocol, and is one of the most commonly used routing protocols in present local area network.
OSPF是一种典型的链路状态路由协议，是当前局域网中最常用的路由协议之一。
6.Although OSPF and RIP can be used together, we preferred to work with a simpler configuration and used OSPF exclusively.
尽管OSPF和RIP可以同时使用，不过为了配置的简化，我们现在只使用OSPF。
7.Every router in an OSPF area is capable of representing the entire network topology.
在单区域中的每个路由器都能描述整个网络拓扑。
8.Router generates and checks every OSPF packet. Router authenticates the source of each routing update packet that it receives.
路由器接受并且核定每个OSPF数据包，路由器认证每个路由更新包的来源。
9.The highest IP address on an active interface at the moment of OSPF process startup.
在OSPF进程启动的那一刻，拥有最高IP地址的激活接口。
10.When a loopback interface is configured, OSPF uses this address as the router ID, regardless of the value.
当迴路介面被组态时，无论其值，OSPF使用此位址当作路由器ID。