MPLS experiment

The experimental requirements ：

The topology ：

  Experimental thinking ：

1、 To configure ip Address （r20 Mouth and 1 I don't deserve it first ）

 

2、 stay mpls Start in the domain ospf, start-up mpls

3、 establish 2 individual VRF Space , carry rd and rt value , binding VRF Interface corresponding to space , Then configure the interface ip

4、 stay vrf Space establishment MP-BGP Neighbors publish routes

5、 stay r1r2、r4r5 Write static （r2 Write statically on VRF Space ）, stay r6、r2 and r4、r7 To start, respectively, rip、ospf, stay VRF Space r2、r7 Reissue

6、 Default to use r7 You can visit r2、r3 Loopback

Configuration command ：

1、 To configure IP

2、 start-up ospf 、 start-up mpls

r2

ospf 1 router-id 2.2.2.2 
 area 0.0.0.0 
  network 2.2.2.2 0.0.0.0 
  network 192.168.2.0 0.0.0.255 

network 10.0.0.0 0.0.0.255 

mpls lsr-id 2.2.2.2
mpls
mpls ldp

interface GigabitEthernet0/0/2
 ip address 192.168.2.1 255.255.255.0 
 mpls
 mpls ldp
 

r3

ospf 1 router-id 3.3.3.3 
 area 0.0.0.0 
  network 3.3.3.3 0.0.0.0 
  network 192.168.2.0 0.0.0.255 
  network 192.168.4.0 0.0.0.255

r4

ospf 1 router-id 4.4.4.4 
 area 0.0.0.0 
  network 4.4.4.4 0.0.0.0 
  network 192.168.4.0 0.0.0.255

mpls lsr-id 4.4.4.4
mpls
mpls ldp

interface GigabitEthernet0/0/0
 ip address 192.168.4.2 255.255.255.0 
 mpls
 mpls ldp
3、 establish 2 individual VRF Space , carry rd and rt value , binding VRF Interface corresponding to space

r2

ip vpn-instance a
 ipv4-family
  route-distinguisher 100:100
  vpn-target 100:1 export-extcommunity
  vpn-target 100:2 import-extcommunity

interface GigabitEthernet0/0/0
 ip binding vpn-instance a
 ip address 192.168.1.2 255.255.255.0

ip vpn-instance b
 ipv4-family
  route-distinguisher 200:2
  vpn-target 200:1 export-extcommunity
  vpn-target 200:2 import-extcommunity

interface GigabitEthernet0/0/1
 ip binding vpn-instance b
 ip address 192.168.3.2 255.255.255.0 

r4

ip vpn-instance b
 ipv4-family
  route-distinguisher 100:100
  vpn-target 100:2 export-extcommunity
  vpn-target 100:1 import-extcommunity

interface GigabitEthernet0/0/1
 ip binding vpn-instance b
 ip address 192.168.5.1 255.255.255.0 

ip vpn-instance a
 ipv4-family
  route-distinguisher 200:2
  vpn-target 200:2 export-extcommunity
  vpn-target 200:1 import-extcommunity

interface GigabitEthernet0/0/2
 ip binding vpn-instance a
 ip address 192.168.6.1 255.255.255.0 

4、 stay vrf Space establishment MP-BGP Neighbors publish routes

r2

bgp 2
 router-id 2.2.2.2
 peer 4.4.4.4 as-number 2 
 peer 4.4.4.4 connect-interface LoopBack0

ipv4-family vpnv4( Give Way bgp Pass on vpn4）
  policy vpn-target
  peer 4.4.4.4 enable
ipv4-family vpn-instance a （VRF Space ）
  import-route direct
  import-route static
 ipv4-family vpn-instance b 
  import-route rip 1
rip 1 vpn-instance b（ stay VRF Start in space rip）
 version 2
 network 192.168.3.0
 import-route bgp
ip route-static vpn-instance a 1.1.1.0 255.255.255.0 192.168.1.1

r4

bgp 2
 router-id 4.4.4.4
 peer 2.2.2.2 as-number 2 
 peer 2.2.2.2 connect-interface LoopBack0
 # 
 ipv4-family vpnv4
  policy vpn-target
  peer 2.2.2.2 enable
 #
 ipv4-family vpn-instance a 
  import-route ospf 2
 #
 ipv4-family vpn-instance b 
  import-route direct
  import-route static

ospf 2 router-id 4.4.4.4 vpn-instance a
 import-route bgp
 area 0.0.0.0 
  network 192.168.6.0 0.0.0.255 
ip route-static vpn-instance b 5.5.5.0 255.255.255.0 192.168.5.2
 

5、 send r7 You can visit r2、r3 Loopback

ip route-static 0.0.0.0 0.0.0.0 10.0.0.2

experimental result ：