Qui hoạch IP:
(1) 192.168.1.0/24
(2) 192.168.2.0/24
(3) 192.168.3.0/24
(4) 192.168.4.0/24
(5) 192.168.5.0/24
(6) 192.168.6.0/24
(7) Lo0: 10.10.10.10/24
(8) Lo0: 20.20.20.20/24
(9) Lo0: 1.1.1.1/24
(10)Lo0: 3.3.3.3/24
(11)Lo0: 2.2.2.2/24
(12)Lo0: 30.30.30.30/24
(13)Lo0: 40.40.40.40/24
1. Yêu cầu:
· Cấu hình MPLS domain giữa PE01 – P – PE02 (IGP = RIPv2)
· Cấu hình BGP AS 1 giữa PE01 và PE 02
· Trên PE01 tạo vrf A1 và B1 tương ứng với mỗi Router A1,B1
· Trên PE02 tạo vrf A2 và B2 tương ứng với mỗi Router A2,B2
· A1 – A2 – B1 – B2 chạy giao thức định tuyến EIGRP
i. A1 : AS = 10
ii. A2 : AS = 30
iii. B1 : AS = 20
iv. B2 : AS = 40
2. Cấu hình:
ROUTER A1:
!
hostname A1
!
no ip domain lookup
!
interface Loopback0
ip address 10.10.10.10 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.0
!
router eigrp 10
network 10.0.0.0
network 192.168.1.0
no auto-summary
!
ip classless
!
ip http server
End
ROUTER B1:
hostname B1
!
ip cef
!
no ip domain lookup
!
interface Loopback0
ip address 20.20.20.20 255.255.255.0
!
interface Serial0/0
ip address 192.168.2.1 255.255.255.0
clock rate 2000000
!
interface FastEthernet0/1
ip address 100.100.100.100 255.255.255.0
no keepalive
!
!
router eigrp 20
network 20.0.0.0
network 100.0.0.0
network 192.168.2.0
no auto-summary
!
ip classless
!
ip http server
End
ROUTER PE01:
hostname PE01
!
!
no ip domain lookup
ip vrf A1
rd 1:100
route-target export 1:100
route-target import 1:100
!
ip vrf B1
rd 1:200
route-target export 1:200
route-target import 1:200
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface FastEthernet0/0
ip vrf forwarding A1
ip address 192.168.1.2 255.255.255.0
!
interface Serial0/0
ip vrf forwarding B1
ip address 192.168.2.2 255.255.255.0
clock rate 64000
!
interface FastEthernet0/1
ip address 192.168.3.1 255.255.255.0
mpls label protocol ldp
tag-switching ip
!
!
router eigrp 100
auto-summary
!
address-family ipv4 vrf B1
network 192.168.2.0
no auto-summary
autonomous-system 20
exit-address-family
!
address-family ipv4 vrf A1
network 192.168.1.0
no auto-summary
autonomous-system 10
exit-address-family
!
router rip
version 2
network 1.0.0.0
network 192.168.3.0
no auto-summary
!
router bgp 1
no synchronization
bgp log-neighbor-changes
neighbor 2.2.2.2 remote-as 1
neighbor 2.2.2.2 update-source Loopback0
no auto-summary
!
address-family vpnv4
neighbor 2.2.2.2 activate
neighbor 2.2.2.2 send-community extended
exit-address-family
!
address-family ipv4 vrf B1
redistribute eigrp 20
no auto-summary
no synchronization
exit-address-family
!
address-family ipv4 vrf A1
redistribute eigrp 10
no auto-summary
no synchronization
exit-address-family
!
ip classless
!
ip http server
no ip http secure-server
!
End
ROUTER P:
hostname P
!
!
ip cef
!
interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.3.2 255.255.255.0
mpls label protocol ldp
tag-switching ip
!
interface FastEthernet0/1
ip address 192.168.4.1 255.255.255.0
mpls label protocol ldp
tag-switching ip
!
router rip
version 2
network 3.0.0.0
network 192.168.3.0
network 192.168.4.0
no auto-summary
!
ip classless
!
ip http server
End
ROUTER PE02:
!
hostname PE02
!
ip cef
!
no ip domain lookup
ip vrf A2
rd 1:100
route-target export 1:100
route-target import 1:100
!
ip vrf B2
rd 1:200
route-target export 1:200
route-target import 1:200
!
!
interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.4.2 255.255.255.0
mpls label protocol ldp
tag-switching ip
!
interface Serial0/0
ip vrf forwarding A2
ip address 192.168.5.1 255.255.255.0
clock rate 64000
!
interface FastEthernet0/1
ip vrf forwarding B2
ip address 192.168.6.1 255.255.255.0
duplex auto
speed auto
!
router eigrp 100
auto-summary
!
address-family ipv4 vrf B2
redistribute bgp 1 metric 1000 100 100 100 100
network 192.168.6.0
auto-summary
autonomous-system 40
exit-address-family
!
address-family ipv4 vrf A2
redistribute bgp 1 metric 1000 100 100 100 100
network 192.168.5.0
auto-summary
autonomous-system 30
exit-address-family
!
router rip
version 2
network 2.0.0.0
network 192.168.4.0
no auto-summary
!
router bgp 1
no synchronization
bgp log-neighbor-changes
neighbor 1.1.1.1 remote-as 1
neighbor 1.1.1.1 update-source Loopback0
no auto-summary
!
address-family vpnv4
neighbor 1.1.1.1 activate
neighbor 1.1.1.1 send-community extended
exit-address-family
!
address-family ipv4 vrf B2
redistribute eigrp 40
no auto-summary
no synchronization
exit-address-family
!
address-family ipv4 vrf A2
redistribute eigrp 30
no auto-summary
no synchronization
exit-address-family
!
ip classless
!
ip http server
no ip http secure-server
!
!
End
ROUTER A2:
!
hostname A2
!
!
!
ip cef
!
no ip domain lookup
ip audit po max-events 100
!
interface Loopback0
ip address 30.30.30.30 255.255.255.0
!
interface Serial0/0
ip address 192.168.5.2 255.255.255.0
clock rate 2000000
!
!
router eigrp 30
network 30.0.0.0
network 192.168.5.0
no auto-summary
!
ip classless
!
ip http server
no ip http secure-server
!
End
ROUTER B2:
!
hostname B2
!
!
no aaa new-model
ip subnet-zero
ip cef
!
!
!
no ip domain lookup
ip audit po max-events 100
!
!
interface Loopback0
ip address 40.40.40.40 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.6.2 255.255.255.0
duplex auto
speed auto
!
!
router eigrp 40
network 40.0.0.0
network 192.168.6.0
no auto-summary
!
ip classless
!
ip http server
!
End
3. Kiểm tra hoạt động:
· Đối với MPLS Domain :
i. Kiểm tra bảng định tuyến :
Trên PE01
PE01#show ip route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
2.0.0.0/24 is subnetted, 1 subnets
R 2.2.2.0 [120/2] via 192.168.3.2, 00:00:12, FastEthernet0/1
3.0.0.0/24 is subnetted, 1 subnets
R 3.3.3.0 [120/1] via 192.168.3.2, 00:00:12, FastEthernet0/1
R 192.168.4.0/24 [120/1] via 192.168.3.2, 00:00:12, FastEthernet0/1
C 192.168.3.0/24 is directly connected, FastEthernet0/1
Trên P
P#show ip route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 [120/1] via 192.168.3.1, 00:00:07, FastEthernet0/0
2.0.0.0/24 is subnetted, 1 subnets
R 2.2.2.0 [120/1] via 192.168.4.2, 00:00:11, FastEthernet0/1
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0
C 192.168.4.0/24 is directly connected, FastEthernet0/1
C 192.168.3.0/24 is directly connected, FastEthernet0/0
Trên PE02
PE02#show ip route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 [120/2] via 192.168.4.1, 00:00:27, FastEthernet0/0
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0
3.0.0.0/24 is subnetted, 1 subnets
R 3.3.3.0 [120/1] via 192.168.4.1, 00:00:27, FastEthernet0/0
C 192.168.4.0/24 is directly connected, FastEthernet0/0
R 192.168.3.0/24 [120/1] via 192.168.4.1, 00:00:27, FastEthernet0/0
Kết luận : Định tuyến nội giữa MPLS Domain đã thông, từ đó cấu hình MPLS
ii. Kiểm tra LFIP table
Trên PE01
PE01#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 16 2.2.2.0/24 0 Fa0/1 192.168.3.2
17 Pop tag 3.3.3.0/24 0 Fa0/1 192.168.3.2
18 Pop tag 192.168.4.0/24 0 Fa0/1 192.168.3.2
Trên P
P#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 Pop tag 2.2.2.0/24 3375 Fa0/1 192.168.4.2
17 Pop tag 1.1.1.0/24 5007 Fa0/0 192.168.3.1
Trên PE02
PE02#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 Pop tag 3.3.3.0/24 0 Fa0/0 192.168.4.1
17 Pop tag 192.168.3.0/24 0 Fa0/0 192.168.4.1
18 17 1.1.1.0/24 0 Fa0/0 192.168.4.1
iii. Cấu hình BGP trên PE01 và PE02
Trên PE01
PE01#show ip bgp summary
BGP router identifier 1.1.1.1, local AS number 1
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
2.2.2.2 4 1 55 54 1 0 0 00:43:36 0
Trên PE02
PE02#show ip bgp summary
BGP router identifier 2.2.2.2, local AS number 1
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
1.1.1.1 4 1 55 56 1 0 0 00:44:24 0
- Kiểm tra vrf routing table của A1,A2,B1,B2 trên PE01 và PE02
Trên PE01:
PE01#show ip route vrf A1
Routing Table: A1
Gateway of last resort is not set
B 192.168.5.0/24 [200/0] via 2.2.2.2, 00:45:07
10.0.0.0/24 is subnetted, 1 subnets
D 10.10.10.0 [90/156160] via 192.168.1.1, 00:45:24, FastEthernet0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
30.0.0.0/24 is subnetted, 1 subnets
B 30.30.30.0 [200/2297856] via 2.2.2.2, 00:45:07
PE01#show ip route vrf B1
Routing Table: B1
Gateway of last resort is not set
100.0.0.0/24 is subnetted, 1 subnets
D 100.100.100.0 [90/2172416] via 192.168.2.1, 00:44:46, Serial0/0
20.0.0.0/24 is subnetted, 1 subnets
D 20.20.20.0 [90/2297856] via 192.168.2.1, 00:44:46, Serial0/0
40.0.0.0/24 is subnetted, 1 subnets
B 40.40.40.0 [200/156160] via 2.2.2.2, 00:46:20
B 192.168.6.0/24 [200/0] via 2.2.2.2, 00:46:20
C 192.168.2.0/24 is directly connected, Serial0/0
Trên PE02:
PE02#show ip route vrf A2
Routing Table: A2
Gateway of last resort is not set
C 192.168.5.0/24 is directly connected, Serial0/0
10.0.0.0/24 is subnetted, 1 subnets
B 10.10.10.0 [200/156160] via 1.1.1.1, 00:45:16
B 192.168.1.0/24 [200/0] via 1.1.1.1, 00:45:16
30.0.0.0/24 is subnetted, 1 subnets
D 30.30.30.0 [90/2297856] via 192.168.5.2, 00:48:47, Serial0/0
PE02#show ip route vrf B2
Routing Table: B2
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
100.0.0.0/24 is subnetted, 1 subnets
B 100.100.100.0 [200/2172416] via 1.1.1.1, 00:46:44
20.0.0.0/24 is subnetted, 1 subnets
B 20.20.20.0 [200/2297856] via 1.1.1.1, 00:46:44
40.0.0.0/24 is subnetted, 1 subnets
D 40.40.40.0 [90/156160] via 192.168.6.2, 00:49:30, FastEthernet0/1
C 192.168.6.0/24 is directly connected, FastEthernet0/1
B 192.168.2.0/24 [200/0] via 1.1.1.1, 00:45:59
- Kiểm tra thông tuyến:
A1#ping 30.30.30.30
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 30.30.30.30, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 196/236/300 ms
B1#ping 40.40.40.40
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 40.40.40.40, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 156/180/200 ms
- Kiểm tra bảng LFIP hoàn chỉnh trên mỗi Router PE01 và PE02:
PE01#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 16 2.2.2.0/24 0 Fa0/1 192.168.3.2
17 Pop tag 3.3.3.0/24 0 Fa0/1 192.168.3.2
18 Pop tag 192.168.4.0/24 0 Fa0/1 192.168.3.2
19 Untagged 20.20.20.0/24[V] 0 Se0/0 point2point
20 Untagged 100.100.100.0/24[V] \
0 Se0/0 point2point
21 Untagged 10.10.10.0/24[V] 0 Fa0/0 192.168.1.1
22 Aggregate 192.168.1.0/24[V] 520
23 Aggregate 192.168.2.0/24[V] 520
PE02#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 Pop tag 3.3.3.0/24 0 Fa0/0 192.168.4.1
17 Pop tag 192.168.3.0/24 0 Fa0/0 192.168.4.1
18 17 1.1.1.0/24 0 Fa0/0 192.168.4.1
19 Untagged 30.30.30.0/24[V] 520 Se0/0 point2point
20 Aggregate 192.168.5.0/24[V] 0
21 Untagged 40.40.40.0/24[V] 570 Fa0/1 192.168.6.2
22 Aggregate 192.168.6.0/24[V] 0
- Kiểm tra cơ chế chuyển mạch nhãn tại MPLS Domain
PE01#traceroute vrf A1 30.30.30.30
Type escape sequence to abort.
Tracing the route to 30.30.30.30
1 192.168.3.2 [MPLS: Labels 16/19 Exp 0] 160 msec 184 msec 144 msec
2 192.168.5.1 [MPLS: Label 19 Exp 0] 128 msec 60 msec 92 msec
3 192.168.5.2 176 msec * 216 msec
PE02#traceroute vrf B2 20.20.20.20
Type escape sequence to abort.
Tracing the route to 20.20.20.20
1 192.168.4.1 [MPLS: Labels 17/19 Exp 0] 176 msec 120 msec 156 msec
2 192.168.2.2 [MPLS: Label 19 Exp 0] 212 msec 64 msec 52 msec
3 192.168.2.1 92 msec * 160 msec
(Đặng Quang Minh - Vnpro)
