1·OSPF was designed to support variable-length subnet masking (VLSM).
OSPF 设计为支持可变长度子网掩码。
2·You need to specify the number of nodes you want to use and the subnet they will use.
我们需要指定集群中想要使用的节点的个数，以及它们所使用的子网。
3·So, although you can change the media speed and duplex on the physical interface, you set up the IP address and subnet on the logical interface.
因此，尽管可以在物理接口上修改介质速度和双工模式，但是要在逻辑接口上设置IP地址和子网。
4·A domain usually pertains to the same subnet.
一个域通常属于同一个子网。
5·Therefore the subnetting rules for boot, service and persistent labels are such that there will never be a duplicate subnet route created by the placement of these addresses.
因此，这些地址的安排不会产生重复的子网路由，这是由引导、服务和持久化标签的子网规则决定的。