MyCCIE.NET

R1-CE1#show run
Building configuration...

Current configuration : 1301 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1-CE1
!
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 10.10.12.1 255.255.255.0
encapsulation frame-relay
ip ospf network broadcast
serial restart-delay 0
no arp frame-relay
frame-relay map ip 10.10.12.2 102 broadcast
no frame-relay inverse-arp
!
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
!
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 1   //CE端正常起OSPF
router-id 1.1.1.1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 0
network 10.10.12.1 0.0.0.0 area 0
!
no ip http server
!        
!
control-plane
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
!
!
end      

R1-CE1#

R2-PE1#SHOW RUN
Building configuration...

Current configuration : 2238 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2-PE1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
ip vrf vpna  //为CE创建一个VRF，RD为100：1，RT为100:1
rd 100:1
route-target export 100:1
route-target import 100:1
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface Loopback1
ip vrf forwarding vpna
ip address 22.22.22.22 255.255.255.0
!
interface Serial0/0
ip vrf forwarding vpna   //将连接CE端的接口加入到VRF中 ip address 10.10.12.2 255.255.255.0
encapsulation frame-relay
ip ospf network broadcast
serial restart-delay 0
no arp frame-relay
frame-relay map ip 10.10.12.1 201 broadcast
no frame-relay inverse-arp
!
interface Serial0/1
ip address 10.10.23.2 255.255.255.0
encapsulation frame-relay
ip ospf network broadcast
mpls ip
serial restart-delay 0
no arp frame-relay
frame-relay map ip 10.10.23.3 213 broadcast
no frame-relay inverse-arp
!        
interface Serial0/2
no ip address
shutdown
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 100 vrf vpna //为vpna创建一个OSPF100，目的是将CE路由引入到PE中 router-id 2.2.2.2
log-adjacency-changes
redistribute bgp 100 subnets  //将MP-BGP学来的路由再发布进OSPF vpna 中
network 10.10.12.2 0.0.0.0 area 0
network 22.22.22.22 0.0.0.0 area 0
!
router ospf 1  //该OSPF进程是为了和R3-ASBR进行路由可达用的，内部IGP log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 0
network 10.10.23.2 0.0.0.0 area 0
!
router bgp 100   //起BGP 100，在AS100内与R3-ASBR建立IBGP邻居关系
no synchronization
bgp router-id 2.2.2.2
bgp log-neighbor-changes
neighbor 3.3.3.3 remote-as 100
neighbor 3.3.3.3 update-source Loopback0
no auto-summary
!
address-family vpnv4   //在VPNV4下激活R3-ASBR的MP-IBGP关系
neighbor 3.3.3.3 activate
neighbor 3.3.3.3 send-community extended
exit-address-family
!
address-family ipv4 vrf vpna //在vrf下将ospf 100 vrf vpna引入MP-BGP
redistribute ospf 100 vrf vpna
no synchronization
exit-address-family
!
no ip http server
!

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

R2-PE1#