ospf 中不同區域之間如何通信
####關於 area 與的概念
OSPF的路由器類型:
1·區域邊界路由器(ABR):用來連接Area0和其他區域的路由器
2·內部路由器:保存自己區域的鏈路狀態信息
3·自治邊界路由器(ASBR):用來連接ospf的AS與外部其他的路由器,也就是說連接不是ospf協議的路由器
OSPF區域:
·它適合大型網絡區域,比如:移動、聯通、電信,比他們更大的比如還有國家電網。
·Area0:骨幹區域
·Area1:子區域
·Area2:子區域
案例 Area0 主幹 區域
Area1 Area5 是ABR 邊界路由器
####R1邊界路由器 ABR 設置
ospf 1
area 0.0.0.0
network 10.10.10.0 0.0.0.255
area 0.0.0.1
network 10.10.20.0 0.0.0.255
network 172.16.10.0 0.0.0.255
####R2路由器主幹區域配置
ospf 1
area 0.0.0.0
network 10.10.10.0 0.0.0.255
network 10.10.11.0 0.0.0.255
####R3路由器主幹區域配置
ospf 1
area 0.0.0.0
network 10.10.11.0 0.0.0.255
network 10.10.12.0 0.0.0.255
#R5 路由器處於交接處是ABR:area border router ,區域邊界路由器配置
#R5 交換機配置
ospf 1
area 0.0.0.0
network 10.10.12.0 0.0.0.255
area 0.0.0.5
network 10.10.20.0 0.0.0.255
network 172.16.12.0 0.0.0.255
#
May 14 2020 16:28:06-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.12.10.10, Neighbo
rEvent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init)
[R5-ospf-1-area-0.0.0.0]q
May 14 2020 16:28:06-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.12.10.10, Neighbo
rEvent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way)
[R5-ospf-1-area-0.0.0.0]q
May 14 2020 16:28:06-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.12.10.10, Neighbo
rEvent=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart)
[R5-ospf-1-area-0.0.0.0]q
May 14 2020 16:28:06-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.12.10.10, Neighbo
rEvent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exch
ange)
[R5-ospf-1-area-0.0.0.0]q
May 14 2020 16:28:06-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.12.10.10, Neighbo
rEvent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loadin
g)
[R5-ospf-1-area-0.0.0.0]q
[R5-ospf-1]
May 14 2020 16:28:06-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[5]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.12.10.10, Neighbo
rEvent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full)
###測試
###所有的網絡都是通過主幹區域轉發流量