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OSPF总结
2022-07-26 08:00:00 【土尔奇酱】

OSPF的数据库表
[r1]display ospf lsdb 查看数据库目录
[r1]display ospf lsdb router 1.1.1.1 详细查看该条目的信息
类别名 link-id(页码)
OSPF Process 1 with Router ID 1.1.1.1
Area: 0.0.0.0
Link State Database
以下信息为所有条目均拥有信息
Type : Router 类别名
Ls id : 1.1.1.1 link-id(页码)
Adv rtr : 1.1.1.1 通告者的RID,来源
Ls age : 723 老化时间,1秒加1;1800s周期归0,触发当下归0,最大老化3609
Len : 48 长度
Options : E 标记位
seq# : 80000016 序列号
chksum : 0x6d96 校验盒码
OSPF协议在不同的环境下,使用不同类别的LSA来传输路由或拓扑信息;
类别 传播范围 通告者 携带信息
1 Router 单区域 该区域每台路由器 本地直连拓扑
2 Network 单区域 DR 单个MA网段的拓扑
3 summary 整个OSPF的域 ABR 域间路由(其他区域的路由)
4 asbr 除ASBR所在区域外 ABR ASBR的位置
整个OSPF的域
ASBR所在区域,通过1类告知位置;通告者为与ASBR在同一区域连接其他区域的ABR
5 External 整个OSPF的域 ASBR 域外路由(重发布进入的路由)
类别 link-id 通告者
1 Router 通告者的RID 该区域的每台路由器
2 network DR的接口ip地址 该网段的DR
3 summary 域间路由网络号 ABR,经过下一台ABR时,修改为新的ABR
4 ASBR ASBR的RID ABR,经过下一台ABR时,修改为新的ABR
5 External 域外路由网络号 ASBR(不变化)
[r4]ospf
[r4-ospf-1]import-route rip 将rip重发布到OSPF的进程1;
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