我对 OSPF 中的主从关系感到困惑？为什么ospf需要主从关系的选举来交换DBD？
为什么我们需要主/从关系来交换 OSPF 中的 DBD？
网络工程
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ospf
协议论
2022-02-17 08:59:57
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这在RFC 2328 - OSPF 版本 2，第 10.8 节中进行了解释
Master Database Description packets are sent when either a) the slave acknowledges the previous Database Description packet by echoing the DD sequence number or b) RxmtInterval seconds elapse without an acknowledgment, in which case the previous Database Description packet is retransmitted. Slave Database Description packets are sent only in response to Database Description packets received from the master. If the Database Description packet received from the master is new, a new Database Description packet is sent, otherwise the previous Database Description packet is resent.
简而言之，在任何给定时间只能不确认一个 DBD 序列号。Master 负责确保正确确认 DBD 序列号。厨房里的两个厨师不起作用......一个必须控制序列号（主），一个必须确认（从）。