Frame Relay 的简单实验验证

 

帧中继交换机FRS配置：

Current configuration : 1686 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname FRS
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
frame-relay switching
!        
!        
!        
!        
!        
interface Serial0/0
 no ip address
 encapsulation frame-relay
 no ip route-cache cef
 no ip route-cache
 serial restart-delay 0
 clock rate 2016000
 frame-relay intf-type dce
 frame-relay route 201 interface Serial0/3 102
!        
interface Serial0/1
 no ip address
 encapsulation frame-relay
 no ip route-cache cef
 no ip route-cache
 serial restart-delay 0
 clock rate 2016000
 frame-relay intf-type dce
 frame-relay route 301 interface Serial0/3 103
!        
interface Serial0/2
 no ip address
 encapsulation frame-relay
 shutdown
 serial restart-delay 0
 clock rate 2016000
 frame-relay intf-type dce
 frame-relay route 102 interface Serial0/0 201
 frame-relay route 103 interface Serial0/1 301
!        
interface Serial0/3
 no ip address
 encapsulation frame-relay
 no ip route-cache cef
 no ip route-cache
 ip ospf network point-to-multipoint
 serial restart-delay 0
 clock rate 2016000
 frame-relay intf-type dce
 frame-relay route 102 interface Serial0/0 201
 frame-relay route 103 interface Serial0/1 301
!        
interface Ethernet1/0
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/1
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/2
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/3
 no ip address
 shutdown
 half-duplex
!        
ip http server
!         
   
!        
control-plane
!        

!        
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
!        
!        

 

远程R的配置（R4）：

 

R4#sh run
Building configuration...

Current configuration : 1386 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R4
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
  
!        
!        

!        
interface Loopback0
 ip address 4.4.4.4 255.255.255.0
 ip ospf network point-to-point
!        
interface Serial0/0
 no ip address
 shutdown
 serial restart-delay 0
!        
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
 ip address 192.168.1.3 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-multipoint
 serial restart-delay 0
 frame-relay map ip 192.168.1.1 102 broadcast
 frame-relay map ip 192.168.1.2 103 broadcast
 frame-relay map ip 192.168.1.3 102
 no frame-relay inverse-arp
!        
interface Ethernet1/0
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/1
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/2
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/3
 no ip address
 shutdown
 half-duplex
!        
router ospf 110
 log-adjacency-changes
 network 4.4.4.0 0.0.0.255 area 0
 network 192.168.1.0 0.0.0.255 area 0
!        
ip http server
!         
      
!        
!        
!        
control-plane
!         
      
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
!        
!        
end     

 

本地R2\R3配置：

interface Loopback0
 ip address 2.2.2.2 255.255.255.0
 ip ospf network point-to-point
!        
interface Serial0/0
 ip address 192.168.1.1 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-multipoint
 serial restart-delay 0
 frame-relay map ip 192.168.1.1 201
 frame-relay map ip 192.168.1.2 201 broadcast
 frame-relay map ip 192.168.1.3 201 broadcast
 no frame-relay inverse-arp
!        
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!        
interface Serial0/2
 ip address 192.168.2.1 255.255.255.0
 serial restart-delay 0
!        
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!        
interface Ethernet1/0
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/1
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/2
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/3
 no ip address
 shutdown
 half-duplex
!        
router ospf 110
 log-adjacency-changes
 network 2.2.2.0 0.0.0.255 area 0
 network 192.168.1.0 0.0.0.255 area 0
 network 192.168.2.0 0.0.0.255 area 0
!        
ip http server

 

R3：

interface Loopback0
 ip address 3.3.3.3 255.255.255.0
 ip ospf network point-to-point
!        
interface Serial0/0
 no ip address
 shutdown
 serial restart-delay 0
!        
interface Serial0/1
 ip address 192.168.1.3 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-multipoint
 serial restart-delay 0
 frame-relay map ip 192.168.1.1 301 broadcast
 frame-relay map ip 192.168.1.2 301
 frame-relay map ip 192.168.1.3 301 broadcast
 no frame-relay inverse-arp
!        
interface Serial0/2
 ip address 192.168.2.2 255.255.255.0
 serial restart-delay 0
!        
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!        
interface Ethernet1/0
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/1
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/2
 no ip address
 shutdown
 half-duplex
!        
interface Ethernet1/3
 no ip address
 shutdown
 half-duplex
!        
router ospf 110
 log-adjacency-changes
 network 3.3.3.0 0.0.0.255 area 0
 network 192.168.1.0 0.0.0.255 area 0
 network 192.168.2.0 0.0.0.255 area 0
!        
ip http server

 

 

 

上面是4个路由器/交换机的sh run。

在做这个实验的时候总是不断的出现错误，还是自身对FR（NBMA）的只是不够扎实，比如忘记封装、写FR-route的时候会忘记进/出编号、写FR-MAP的时候忘记打上BOARDCAST、忘记设置NBMA的类型：point-to-multipoint，这些都是一些小的地方，但是却很致命，因为在这些小错误上面浪费了大量的时间。

 

 

R4#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     2.0.0.0/24 is subnetted, 1 subnets
O       2.2.2.0 [110/65] via 192.168.1.1, 00:44:03, Serial0/3
     3.0.0.0/24 is subnetted, 1 subnets
O       3.3.3.0 [110/129] via 192.168.1.1, 00:44:03, Serial0/3
     4.0.0.0/24 is subnetted, 1 subnets
C       4.4.4.0 is directly connected, Loopback0
     192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
O       192.168.1.1/32 [110/64] via 192.168.1.1, 00:44:03, Serial0/3
C       192.168.1.0/24 is directly connected, Serial0/3
O    192.168.2.0/24 [110/128] via 192.168.1.1, 00:44:03, Serial0/3
R4#

可见，在远程R4上已经通过FR学习到了本地R2\R3的路由，FR搭建有效。

 

 

FR相关命令：

encapsulation frame-relay

 

no ip route-cache

 

clock rate 2016000

 frame-relay intf-type dce

 frame-relay route 201 interface Serial0/3 102

 

ip ospf network point-to-multipoint

 

frame-relay map ip 192.168.1.1 102 broadcast

 frame-relay map ip 192.168.1.2 103 broadcast

 frame-relay map ip 192.168.1.3 102（本地PING）

 no frame-relay inverse-arp

本文出自 “Young’s_CCIE” 博客，转载请与作者联系！