NBMA网络中ospf的解决方法之一-----改变网络类型

人，关键时刻总要靠自己。

这是我在学习OSPF时做的一个实验。NBMA网络上做OSPF（NBMA，当然首先想到的是FR咯）。MA，意味着它和以太网一样可以连接多台设备，但NB，非广播，意味着网络上的数据包不一定能被网络中其它的设备接收得到。因为是MA网络，所有要选举DR，但非广播使它不能自动地了解它的邻居。解决方法之一是手工指定邻居。同时我们还可以改变网络类型。

下面是改变网络类型的方法。

 

R1配置：

 

R1#show running-config
Building configuration...

Current configuration : 1024 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
!
!        
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 1.1.1.1 255.255.255.0
!
interface Serial0/0
 ip address 10.10.10.1 255.255.255.0
 encapsulation frame-relay
 ip ospf network broadcast
 serial restart-delay 0
 frame-relay map ip 10.10.10.2 102 broadcast
 frame-relay map ip 10.10.10.3 103 broadcast
!
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!
router ospf 10
 log-adjacency-changes
 network 1.1.1.1 0.0.0.0 area 0
 network 10.10.10.0 0.0.0.255 area 0
!
ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end

 

 

 

 

R2配置：

 

R2#show running-config
Building configuration...

Current configuration : 1024 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
!
!
!
!
!        
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 2.2.2.2 255.255.255.0
!
interface Serial0/0
 ip address 10.10.10.2 255.255.255.0
 encapsulation frame-relay
 ip ospf network broadcast
 ip ospf priority 0
 serial restart-delay 0
 frame-relay map ip 10.10.10.1 201 broadcast
 frame-relay map ip 10.10.10.3 201 broadcast
!
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!
router ospf 10
 log-adjacency-changes
 network 2.2.2.2 0.0.0.0 area 0
 network 10.10.10.0 0.0.0.255 area 0
!
ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end

 

 

 

R3配置：

 

R3#show running-config
Building configuration...

Current configuration : 1015 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
!
!        
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 3.3.3.3 255.255.255.0
!
interface Serial0/0
 ip address 10.10.10.3 255.255.255.0
 encapsulation frame-relay
 ip ospf network broadcast
 ip ospf priority 0
 serial restart-delay 0
 frame-relay map ip 10.10.10.1 301 broadcast
 frame-relay map ip 10.10.10.2 301 broadcast
!
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!        
router ospf 10
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0
!
ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end

 

 

 

坚持每天进步！！！