ospf与rip重分布引起的问题.docx
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ospf与rip重分布引起的问题
将ospf与rip相互引入。
由于华为的ospf内部路由优先级为10,外部引入路由优先级
为150。
RIP的优先级为100。
所以RIP的路由优先级比ospf的外部引入的小，故RIP
路由优先于ospf外部路由。
刚构建的拓扑，并不存在环路和次优路径，当ar2上的接口出现down的现象后，才会
出现次优路径或者环路现象
dispiprouting-table
RouteFlags:
R-relay,D-downloadtofib
RoutingTables:
Public
10.1.12.0/24
OSPF
10
2
D
10.1.24.2
GigabitEthernet0/0/0
10.1.23.0/24
OSPF
10
2
D
10.1.24.2
GigabitEthernet0/0/0
10.1.24.0/24
Direct
0
0
D
10.1.24.4
GigabitEthernet0/0/0
10.1.24.4/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.24.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
22.1.1.1/32
OSPF
10
1
D
10.1.24.2
GigabitEthernet0/0/0
33.1.1.1/32
OSPF
10
2
D
10.1.24.2
GigabitEthernet0/0/0
44.1.1.1/32
Direct
0
0
D
127.0.0.1
LoopBack0
127.0.0.0/8
Direct
0
0
D
127.0.0.1
InLoopBack。
127.0.0.1/32
Direct
0
0
D
127.0.0.1
InLoopBack0
127.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
172.16.0.0/24
O_ASE
150
1
D
10.1.24.2
GigabitEthernet0/0/0
172.16.2.0/24
O_ASE
150
1
D
10.1.24.2
GigabitEthernet0/0/0
192.168.35.0/24
O_ASE
15C
11
D
10.1.24.2
GigabitEthernet0/0/0
192.168.45.0/24
Direct
0
0
D
192.168.45.4
GigabitEthernet0/0/1
192.168.45.4/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
192.168.45.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
255.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
[ar3]dispiprouting-table
RouteFlags:
R-relay,D-downloadtofib
RoutingTables:
Public
Destination/Mask
Proto
Pre
Cost
FlagsNextHop
Interface
10.1.12.0/24
OSPF
10
2
D
10.1.23.2
GigabitEthernet0/0/0
10.1.23.0/24
Direct
0
0
D
10.1.23.3
GigabitEthernet0/0/0
10.1.23.3/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.23.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.24.0/24
OSPF
10
2
D
10.1.23.2
GigabitEthernet0/0/0
22.1.1.1/32
OSPF
10
1
D
10.1.23.2
GigabitEthernet0/0/0
33.1.1.1/32
Direct
0
0
D
127.0.0.1
LoopBack0
44.1.1.1/32
OSPF
10
2
D
10.1.23.2
GigabitEthernet0/0/0
127.0.0.0/8
Direct
0
0
D
127.0.0.1
InLoopBack0
127.0.0.1/32
Direct
0
0
D
127.0.0.1
InLoopBack0
127.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
172.16.0.0/24
O_ASE
150
1
D
10.1.23.2
GigabitEthernet0/0/0
172.16.2.0/24
O_ASE
150
1
D
10.1.23.2
GigabitEthernet0/0/0
192.168.35.0/24
Direct
0
0
D
192.168.35.3
GigabitEthernet0/0/1
192.168.35.3/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
192.168.35.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
192.168.45.0/24
O_ASE
15C
11
D
10.1.23.2
GigabitEthernet0/0/0
255.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
当ar3与ar2的邻居状态出现震荡后
ar3收到172.16.0.0/24和172.1620/24的路由会由于ospf的震荡导致邻居关系重新建
立，LSA重新交互。
同时由于RIP并没有断开，同时因为rip的路由优先级比ospf的外部
路由要低，所以ar3的172.16.0.0/24和172.16.2.0/24两个路由浮现的协议为RIP。
导致
次优路径的产生。
Ar4因为没有产生震荡所以路由表没有改变。
Ar4和ar2之间链路状态出现变化同样道理。
dispiprouting-table
RouteFlags:
R-relay,D-downloadtofib
RoutingTables:
Public
Destination/Mask
Proto
Pre
Cost
FlagsNextHop
Interface
10.1.12.0/24
OSPF
10
2
D
10.1.23.2
GigabitEthernet0/0/0
10.1.23.0/24
Direct
0
0
D
10.1.23.3
GigabitEthernet0/0/0
10.1.23.3/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.23.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.24.0/24
OSPF
10
2
D
10.1.23.2
GigabitEthernet0/0/0
22.1.1.1/32
OSPF
10
1
D
10.1.23.2
GigabitEthernet0/0/0
33.1.1.1/32
Direct
0
0
D
127.0.0.1
LoopBack0
44.1.1.1/32
OSPF
10
2
D
10.1.23.2
GigabitEthernet0/0/0
55.1.1.1/32
RIP
100
1
D
192.168.35.5
GigabitEthernet0/0/1
127.0.0.0/8
Direct
0
0
D
127.0.0.1
InLoopBack0
127.0.0.1/32
Direct
0
0
D
127.0.0.1
InLoopBack0
127.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
172.16.0.0/24
RIP
100
2
D
192.168.35.5
GigabitEthernet0/0/1
172.1620/24
RIP
100
2
D
192.168.35.5
GigabitEthernet0/0/1
192.168.35.0/24
Direct
0
0
D
192.168.35.3
GigabitEthernet0/0/1
192.168.35.3/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
192.168.35.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
192.168.45.0/24
RIP
100
1
D
192.168.35.5
GigabitEthernet0/0/1
255.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack。
dispiprouting-table
RouteFlags:
R-relay,D-downloadtofib
RoutingTables:
Public
Destination/Mask
Proto
Pre
Cost
FlagsNextHop
Interface
10.1.12.0/24
OSPF
10
2
D
10.1.24.2
GigabitEthernet0/0/0
10.1.23.0/24
OSPF
10
2
D
10.1.24.2
GigabitEthernet0/0/0
10.1.24.0/24
Direct
0
0
D
10.1.24.4
GigabitEthernet0/0/0
10.1.24.4/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.24.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
22.1.1.1/32
OSPF
10
1
D
10.1.24.2
GigabitEthernet0/0/0
33.1.1.1/32
OSPF
10
2
D
10.1.24.2
GigabitEthernet0/0/0
44.1.1.1/32
Direct
0
0
D
127.0.0.1
LoopBack0
55.1.1.1/32
RIP
100
1
D
192.168.45.5
GigabitEthernet0/0/1
127.0.0.0/8
Direct
0
0
D
127.0.0.1
InLoopBack0
127.0.0.1/32
Direct
0
0
D
127.0.0.1
InLoopBack0
127.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
172.16.0.0/24
O_ASE
150
1
D
10.1.24.2
GigabitEthernet0/0/0
172.16.2.0/24
O_ASE
150
1
D
10.1.24.2
GigabitEthernet0/0/0
192.168.35.0/24
RIP
100
1
D
192.168.45.5
GigabitEthernet0/0/1
192.168.45.0/24
Direct
0
0
D
192.168.45.4
GigabitEthernet0/0/1
192.168.45.4/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
192.168.45.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
255.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
[ar2-GigabitEthernet0/0/0]dispiprouting-table
RouteFlags:
R-relay,D-downloadtofib
RoutingTables:
Public
10.0.0.0/24
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
10.0.1.0/24
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
10.0.2.0/24
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
10.1.12.0/24
Direct
0
0
D
10.1.12.2
GigabitEthernet0/0/0
10.1.12.2/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.12.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/0
10.1.23.0/24
Direct
0
0
D
10.1.23.2
GigabitEthernet0/0/1
10.1.23.2/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
10.1.23.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet0/0/1
10.1.24.0/24
Direct
0
0
D
10.1.24.2
GigabitEthernet2/0/0
10.1.24.2/32
Direct
0
0
D
127.0.0.1
GigabitEthernet2/0/0
10.1.24.255/32
Direct
0
0
D
127.0.0.1
GigabitEthernet2/0/0
22.1.1.1/32
Direct
0
0
D
127.0.0.1
LoopBack0
33.1.1.1/32
OSPF
10
1
D
10.1.23.3
GigabitEthernet0/0/1
44.1.1.1/32
OSPF
10
1
D
10.1.24.4
GigabitEthernet2/0/0
55.1.1.1/32
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
127.0.0.0/8
Direct
0
0
D
127.0.0.1
InLoopBack。
127.0.0.1/32
Direct
0
0
D
127.0.0.1
InLoopBack。
127.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
172.16.0.0/24
Static
60
0
RD
10.1.12.1
GigabitEthernet0/0/0
172.16.1.0/24
Static
60
0
RD
10.1.12.1
GigabitEthernet0/0/0
172.16.2.0/24
Static
60
0
RD
10.1.12.1
GigabitEthernet0/0/0
172.16.3.0/24
Static
60
0
RD
10.1.12.1
GigabitEthernet0/0/0
172.16.4.0/24
Static
60
0
RD
10.1.12.1
GigabitEthernet0/0/0
192.168.35.0/24
O_ASE
15C
）1
D
10.1.24.4
GigabitEthernet2/0/0
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
192.168.45.0/24
O_ASE
15C
）1
D
10.1.24.4
GigabitEthernet2/0/0
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
255.255.255.255/32
Direct
0
0
D
127.0.0.1
InLoopBack0
追踪路径:
[ar4]tracert172.16.0.1
tracerouteto172.16.0.1（172.16.0.1）,maxhops:
30‘packetlength:
40,pressCTRL_Ctobreak
110.1.24.220ms20ms10ms
210.1.12.130ms30ms20ms
tracert172.16.0.1
tracerouteto172.16.0.1（172.16.0.1）,maxhops:
30,packetlength:
40,pressCTRL_Ctobreak
1192.168.35.540ms10ms10ms
310.1.24.220ms20ms20ms
410.1.12.120ms30ms30ms
环路现象，ar1和ar2之间的链路断链后。
[ar2-GigabitEthernet0/0/0]dispiprouting-table
RouteFlags:
R-relay,D-downloadtofib
RoutingTables:
Public
Destination/Mask
Proto
Pre
Cost
FlagsNextHop
Interface
10.0.0.0/24
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
10.0.1.0/24
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
10.0.2.0/24
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
10.1.23.0/24
Direct
00
D
10.1.23.2
GigabitEthernet0/0/1
10.1.23.2/32
Direct
00
D
127.0.0.1
GigabitEthernet0/0/1
10.1.23.255/32
Direct
00
D
127.0.0.1
GigabitEthernet0/0/1
10.1.24.0/24
Direct
00
D
10.1.24.2
GigabitEthernet2/0/0
10.1.24.2/32
Direct
00
D
127.0.0.1
GigabitEthernet2/0/0
10.1.24.255/32
Direct
00
D
127.0.0.1
GigabitEthernet2/0/0
22.1.1.1/32
Direct
00
D
127.0.0.1
LoopBackO
33.1.1.1/32
OSPF
10
1
D
10.1.23.3
GigabitEthernet0/0/1
44.1.1.1/32
OSPF
10
1
D
10.1.24.4
GigabitEthernet2/0/0
55.1.1.1/32
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
127.0.0.0/8
Direct
00
D
127.0.0.1
InLoopBackO
127.0.0.1/32
Direct
00
D
127.0.0.1
InLoopBackO
127.255.255.255/32
Direct
01
0
D
127.0.0.1
InLoopBack0
172.16.0.0/24
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
172.16.2.0/24
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
192.168.35.0/24
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
192.168.45.0/24
O_ASE
150
1
D
10.1.24.4
GigabitEthernet2/0/0
O_ASE
150
1
D
10.1.23.3
GigabitEthernet0/0/1
255.255.255.255/32
Direct
0
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