tcp/ip_ospf over frame-relay2
第二部分:部分互联
1.三台设备接口同一网段部分全互联,网络类型broadcast,确保hub为dr,在星型拓扑下会出现二层封装问题,encapsulation failed解决方案,增加pvc映射
2.三台设备接口同一网段部分互联:网络类型nbma,确保hub作为dr,在dr上单播指定邻居,同时确保spoke完全不能成为dr/bdr,spoke需要多加map(解决二层映射)
3.三台设备接口同一网段部分全互联:网络类型p2mp-p ospf network point to multipoint,不再需要dr,也仅仅在type的lsa,产生32位的主机路由,要在一个点到多点的环境中标识自己,产生这个32位主机路由的下一跳在fr的bub上,告诉整个点对多点的其他设备用来标识
4.最后r1的s0/0启用p2p子接口
r3:
int s0/1
no frame-relay map ip 10.1.1.4 204 broadcast
r4:
no frame-relay map ip 10.1.1.3 402 broadcast
show frame-relay map
ospf over frame-relay hub&spoke
一.默认nbma网络类型
1.单播指定邻居
2.dr选举:hub成为dr,spoke不能成为dr(p=0)
3.二层封装问题,增加静态map到另外一端的spoke
二.broadcast网络类型
1.组播发现邻居
2.dr选举:hub成为dr,spoke不能成为dr(p=0)
3.frame-relay map ip 10.1.1.3 103 broadcast
三.点到多点网络类型(推荐)
1.无需指定邻居
2.无需dr
3.无2层封装问题,无需map
4.产生32位的标识路由
r3:
show ip route ospf
show ip ospf neighbor
int s0/1
frame-relay map ip 10.1.1.4 204 broadcast
r4:
int s0/2
frame-relya map ip 10.1.1.3 402 broadcast
r1:
ip ospf network broadcast
r3:
ip ospf network broadcast
r4:
ip ospf network broadcast
r1:
int s0/0
ip ospf network point-to-multipoint
r3:
int s0/1
ip ospf network point-to-multipoint
r4:
int s0/2
ip ospf network point-to-multipoint
r1:
int s0/0.14 point-to-point
ip add 10.1.2.1 255.255.255.0
frame-relay interface-dlci 104(在子接口不能使用map做映射)
r4:
int s0/2
ip add 10.1.2.4 255.255.255.0
frame-relay map ip 10.1.2.1 401 broadcast
ip ospf 110 area 0
r1:
int s0/0.14
ip ospf 110 area 0
r4:
int s0/2
ip ospf hello interval 10
ip ospf network point-to-point
标签：map,Type,Star,NETWORK,ospf,s0,broadcast,ip,dr From： https://www.cnblogs.com/smoke520/p/18368017