ensp-OSPF虚链路的搭建
搭建框架
背景介绍
一、OSPF特殊区域-Totally NSSA
NSSA区域的优化-Totally NSSA
在ABR上配置,确保该区域不包含"区域之间的链路",从而避 免该区域受到“其他区域”的影响
具备这种特点的区域,称之为Totally NSSA区域
二、OSPF虚链路
1、产生背景:
企业内网运行多区域的OSPF网络,因网络规划问题,导致区域 12 没有连接到骨干区域
现因业务需要,需确保R1能和其他区域的设备实现快速互通
2、解决方案:
OSPF 虚链路,即永远属于骨干区域的一个虚拟的链路。通过 虚拟链路建立的邻居,也都属于 OSPF 骨干区域
OSPF 虚链路的建立,必须要穿越"普通的"非骨干区域
实验步骤
配置AR1
un t m
sys
sys R1
in g0/0/0
ip add 192.168.12.1 24
q
ospf 1 router-id 1.1.1.1
area 12
network 192.168.12.0 0.0.0.255
配置AR2
un t m
sys
sys R2
in g0/0/1
ip add 192.168.12.2 24
in g0/0/0
ip add 192.168.23.2 24
q
ospf 1 router-id 2.2.2.2
area 12
network 192.168.12.0 0.0.0.255
q
area 34
network 192.168.23.0 0.0.0.255
q
ospf 1
area 34
vlink-peer 5.5.5.5
配置AR3
un t m
sys
sys R3
in g0/0/1
ip add 192.168.23.3 24
in g0/0/0
ip add 192.168.34.3 24
q
ospf 1 router-id 3.3.3.3
area 34
network 192.168.23.0 0.0.0.255
network 192.168.34.0 0.0.0.255
配置AR4
un t m
sys
sys R4
in g0/0/1
ip add 192.168.34.4 24
in g0/0/0
ip add 192.168.45.4 24
q
ospf 1 router-id 4.4.4.4
area 34
network 192.168.34.0 0.0.0.255
network 192.168.45.0 0.0.0.255
中间配错了,更正
配置AR5
un t m
sys
sys R5
in g0/0/1
ip add 192.168.45.5 24
in g0/0/0
ip add 192.168.56.5 24
q
ospf 1 router-id 5.5.5.5
area 34
network 192.168.45.0 0.0.0.255
q
area 0
network 192.168.56.0 0.0.0.255
q
area 34
vlink-peer 2.2.2.2
配错了中间
配置AR6
un t m
sys
sys R6
in g0/0/1
ip add 192.168.56.6 24
q
ospf 1 router-id 6.6.6.6
area 0
network 192.168.56.0 0.0.0.255
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