题目要求: 1、两个协议间进行多点双向重发布 2、R7环回没有宣告在OPSF中,而是后期重发布进入; 3、解决环路,所有路径选择最优,且存在备份。 **
**
[R3]int g0/0/0 [R3-GigabitEthernet0/0/1]ip address 34.1.1.1 24 [R3-GigabitEthernet0/0/1]int g0/0/2 [R3-GigabitEthernet0/0/2]ip address 13.1.1.2 24 [R3]int LoopBack 0 [R3-LoopBack0]ip address 3.3.3.3 24
R4
[R3]rip [R3-rip-1]network 13.0.0.0 [R3]ospf 1 [R3-ospf-1]area 0 [R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0 [R3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0 [R4]ospf 1 [R4-ospf-1]area 0 [R4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0 [R4-ospf-1-area-0.0.0.0]network 24.1.1.1 0.0.0.0 [R4-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0 [R4-ospf-1-area-0.0.0.0]network 45.1.1.1 0.0.0.0 [R5]ospf 1 [R5-ospf-1]area 0 [R5-ospf-1-area-0.0.0.0]network 5.5.5.5 0.0.0.0 [R5-ospf-1-area-0.0.0.0]network 45.1.1.1 0.0.0.0 [R5-ospf-1-area-0.0.0.0]network 56.1.1.1 0.0.0.0 [R6]ospf 1 [R6-ospf-1]area 0 [R6-ospf-1-area-0.0.0.0]network 6.6.6.6 0.0.0.0 [R6-ospf-1-area-0.0.0.0]network 67.1.1.1 0.0.0.0 [R6-ospf-1-area-0.0.0.0]network 56.1.1.1 0.0.0.0 [R7]ospf 1 [R7-ospf-1]area 0 [R7-ospf-1-area-0.0.0.0]network 67.1.1.1 0.0.0.0
[R2]rip [R2-rip-1]import-route ospf [R2]ospf 1 [R2-ospf-1]import-route rip [R3]rip [R3-rip-1]import-route ospf [R3]ospf 1 [R3-ospf-1]import-route rip
对于R4/5/6/7而言在R1/2/3/4形成的环路里会因为重发布清洗度量值而负载均衡出现选路不佳。 【R1】R3环回/24网段/34网段 【R4】到R2环回/12/网段/13网段
[R2]ip ip-prefix a permit 34.1.1.1 24 [R2]ip ip-prefix c permit 3.3.3.3 24 [R2]ip ip-prefix b permit 13.1.1.1 24 [R2]route-policy qq permit node 10 Info: New Sequence of this List. [R2-route-policy]if-match ip-prefix a [R2-route-policy]apply cost 3 [R2]route-policy qq permit node 20 Info: New Sequence of this List. [R2-route-policy]if-match ip-prefix b [R2-route-policy]apply cost 3 [R2]route-policy qq permit node 30 Info: New Sequence of this List. [R2-route-policy]apply cost 3 [R2]route-policy qq permit node 40 Info: New Sequence of this List. [R2-route-policy]q [R2]ospf 1 [R2-ospf-1]import-route rip route-policy qq [R2]rip [R2-rip-1]import-route ospf route-policy qq