Networklearner: OSPF as PE-CE protocol-Different Process ID on PEs -MPLS

PC1:-

PC1> ip 10.1.1.10 255.255.255.0 10.1.1.1

Checking for duplicate address...

PC1 : 10.1.1.10 255.255.255.0 gateway 10.1.1.1

R1:-

R1(config)#int fa0/0

R1(config-if)#ip add 10.1.1.1 255.255.255.0

R1(config-if)#no shut

R1(config-if)#int fa2/0

R1(config-if)#ip add 12.12.12.1 255.255.255.0

R1(config-if)#no shut

R1(config-if)#int lo0

R1(config-if)#ip add 1.1.1.1 255.255.255.255

R1(config)#router ospf 1

R1(config-router)# log-adjacency-changes

R1(config-router)# network 1.1.1.1 0.0.0.0 area 0

R1(config-router)# network 10.1.1.1 0.0.0.0 area 0

R1(config-router)# network 12.12.12.1 0.0.0.0 area 0

R2:-

R2(config)#ip vrf cust1

R2(config-vrf)#rd 100:1

R2(config-vrf)#route-target 200:1

R2(config-vrf)#int fa2/0

R2(config-if)#ip vrf for cust1

R2(config-if)#ip add 12.12.12.2 255.255.255.0

R2(config-if)#no shut

R2(config-if)#int fa0/0

R2(config-if)#ip add 23.23.23.2 255.255.255.0

R2(config-if)#mpls ip

R2(config-if)#no shut

R2(config-if)#int lo0

R2(config-if)#ip add 2.2.2.2 255.255.255.255

R2(config-if)#mpls ldp router lo0 force

R2(config)#router ospf 1

R2(config-router)#router-id 2.2.2.2

R2(config-router)#net 23.23.23.2 0.0.0.0 are

R2(config-router)#net 23.23.23.2 0.0.0.0 area 0

R2(config-router)#network 2.2.2.2 0.0.0.0 area 0

R2(config-if)#router bgp 1

R2(config-router)#neighbor 4.4.4.4 remote-as 1

R2(config-router)#neighbor 4.4.4.4 update-source lo0

R2(config-router)#address-family vpnv4

R2(config-router-af)#neighbor 4.4.4.4 activate

R2(config-router-af)#exit

R2(config-router)#address-family ipv4 vrf cust1

R2(config-router-af)#redistribute ospf 100 vrf cust1 metric 10

R2(config-router-af)#exit

R2(config-router)#router ospf 100 vrf cust1

R2(config-router)# log-adjacency-changes

R2(config-router)# redistribute bgp 1 subnets

R2(config-router)# network 12.12.12.2 0.0.0.0 area 0

R3:-

R3(config)#int lo0

R3(config-if)#ip add 3.3.3.3 255.255.255.255

R3(config-if)#exit

R3(config)#mpls ldp router lo0 force

R3(config)#int fa0/0

R3(config-if)#ip add 23.23.23.3 255.255.255.0

R3(config-if)#mpls ip

R3(config-if)#no shut

R3(config-if)#int fa1/0

R3(config-if)#ip add 34.34.34.3 255.255.255.0

R3(config-if)#mpls ip

R3(config-if)#no shut

R3(config-if)#router ospf 1

R3(config-router)#router-id 3.3.3.3

R3(config-router)#net 23.23.23.3 0.0.0.0 area 0

R3(config-router)#net 34.34.34.3 0.0.0.0 are 0

R3(config-router)#net 3.3.3.3 0.0.0.0 area 0

R3(config-router)#exit

R4:-

R4(config)#int lo0

R4(config-if)#ip add 4.4.4.4 255.255.255.255

R4(config-if)#int fa1/0

R4(config-if)#ip add 34.34.34.4 255.255.255.0

R4(config-if)#mpls ip

R4(config-if)#no shut

R4(config-if)#exit

R4(config)#mpls ldp router lo0 force

R4(config)#ip vrf cust1

R4(config-vrf)#rd 1:1

R4(config-vrf)#route-target 200:1

R4(config-vrf)#exit

R4(config)#int fa2/0

R4(config-if)#ip vrf for cust1

R4(config-if)#ip add 45.45.45.4 255.255.255.0

R4(config-if)#no shut

R4(config-if)#router ospf 1

R4(config-router)#router-id 4.4.4.4

R4(config-router)#net 34.34.34.4 0.0.0.0 area 0

R4(config-router)#network 4.4.4.4 0.0.0.0 area 0

R4(config)#router bgp 1

R4(config-router)#neighbor 2.2.2.2 remote-as 1

R4(config-router)#neighbor 2.2.2.2 update-source lo0

R4(config-router)#address-family vpnv4

R4(config-router-af)#neighbor 2.2.2.2 activate

R4(config-router-af)#addres ipv4 vrf cust1

R4(config-router-af)# redistribute ospf 200 vrf cust1

R4(config-router-af)#exit

R4(config-router)#exit

R4(config-router-af)#router ospf 200 vrf cust1

R4(config-router)#net 45.45.45.4 0.0.0.0 area 0

R5:-

R5(config)#int lo0

R5(config-if)#ip add 5.5.5.5 255.255.255.255

R5(config-if)#int fa2/0

R5(config-if)#ip add 45.45.45.5 255.255.255.0

R5(config-if)#no shut

R5(config)#int fa0/0

R5(config-if)#ip add 20.1.1.1 255.255.255.0

R5(config-if)#no shut

R5(config)#router ospf 1

R5(config-router)#net 5.5.5.5 0.0.0.0 area 0

R5(config-router)#net 45.45.45.5 0.0.0.0 area 0

Verification:-

PC1:-

PC1> ping 20.1.1.10

84 bytes from 20.1.1.10 icmp_seq=1 ttl=59 time=368.619 ms

84 bytes from 20.1.1.10 icmp_seq=2 ttl=59 time=347.316 ms

84 bytes from 20.1.1.10 icmp_seq=3 ttl=59 time=368.788 ms

84 bytes from 20.1.1.10 icmp_seq=4 ttl=59 time=416.798 ms

84 bytes from 20.1.1.10 icmp_seq=5 ttl=59 time=379.615 ms

PC1> trace 20.1.1.10

trace to 20.1.1.10, 8 hops max, press Ctrl+C to stop

1 10.1.1.1 98.128 ms 32.396 ms 38.933 ms

2 12.12.12.2 193.647 ms 120.998 ms 111.703 ms

3 23.23.23.3 309.530 ms 294.889 ms 276.499 ms

4 45.45.45.4 289.342 ms 309.988 ms 292.062 ms

5 45.45.45.5 329.599 ms 272.541 ms 341.644 ms

6 *20.1.1.10 345.620 ms (ICMP type:3, code:3, Destination port unreachable)

R1:-

R1#sh ip route

Codes: L - local, 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, H - NHRP

+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/32 is subnetted, 1 subnets

C 1.1.1.1 is directly connected, Loopback0

5.0.0.0/32 is subnetted, 1 subnets

O E2 5.5.5.5 [110/2] via 12.12.12.2, 00:04:15, FastEthernet2/0 ---<< IF Process ID doesn’t match on both PE,Internal route will become external type 2 route and metric will remain unchanged on MPLS cloud

10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 10.1.1.0/24 is directly connected, FastEthernet0/0

L 10.1.1.1/32 is directly connected, FastEthernet0/0

12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 12.12.12.0/24 is directly connected, FastEthernet2/0

L 12.12.12.1/32 is directly connected, FastEthernet2/0

20.0.0.0/24 is subnetted, 1 subnets

O E2 20.1.1.0 [110/2] via 12.12.12.2, 00:04:15, FastEthernet2/0

45.0.0.0/24 is subnetted, 1 subnets

O E2 45.45.45.0 [110/1] via 12.12.12.2, 00:05:13, FastEthernet2/0

R1#sh ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface

12.12.12.2 1 FULL/BDR 00:00:39 12.12.12.2 FastEthernet2/0

R2:-

R2#sh ip ospf 100 neighbor

Neighbor ID Pri State Dead Time Address Interface

1.1.1.1 1 FULL/DR 00:00:33 12.12.12.1 FastEthernet2/0

R2#sh ip ospf 1 neighbor

Neighbor ID Pri State Dead Time Address Interface

3.3.3.3 1 FULL/BDR 00:00:34 23.23.23.3 FastEthernet0/0

R2#show ip bgp vpnv4 all summary

BGP router identifier 2.2.2.2, local AS number 1

BGP table version is 52, main routing table version 52

9 network entries using 1368 bytes of memory

9 path entries using 468 bytes of memory

4/4 BGP path/bestpath attribute entries using 528 bytes of memory

2 BGP extended community entries using 80 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 2444 total bytes of memory

BGP activity 23/14 prefixes, 30/21 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd

4.4.4.4 4 1 437 432 52 0 0 06:19:48 3

R2#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

4.4.4.4 4 1 437 432 1 0 0 06:19:55 0

R2#show ip bgp vpnv4 all

BGP table version is 72, local router ID is 2.2.2.2

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, x best-external

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 1:1

*>i5.5.5.5/32 4.4.4.4 2 100 0 ?

*>i20.1.1.0/24 4.4.4.4 2 100 0 ?

*>i45.45.45.0/24 4.4.4.4 0 100 0 ?

Route Distinguisher: 100:1 (default for vrf cust1)

*> 1.1.1.1/32 12.12.12.1 10 32768 ?

*>i5.5.5.5/32 4.4.4.4 2 100 0 ?

*> 10.1.1.0/24 12.12.12.1 10 32768 ?

*> 12.12.12.0/24 0.0.0.0 0 32768 ?

*>i20.1.1.0/24 4.4.4.4 2 100 0 ?

*>i45.45.45.0/24 4.4.4.4 0 100 0 ?

R2#show ip bgp vpnv4 all 20.1.1.0/24

BGP routing table entry for 1:1:20.1.1.0/24, version 70

Paths: (1 available, best #1, no table)

Not advertised to any peer

Local

4.4.4.4 (metric 3) from 4.4.4.4 (4.4.4.4)

Origin incomplete, metric 2, localpref 100, valid, internal, best

Extended Community: RT:200:1 OSPF DOMAIN ID:0x0005:0x000000C80200

OSPF RT:0.0.0.0:2:0 OSPF ROUTER ID:45.45.45.4:0

mpls labels in/out nolabel/17

BGP routing table entry for 100:1:20.1.1.0/24, version 72

Paths: (1 available, best #1, table cust1)

Not advertised to any peer

Local, imported path from 1:1:20.1.1.0/24

4.4.4.4 (metric 3) from 4.4.4.4 (4.4.4.4)

Origin incomplete, metric 2, localpref 100, valid, internal, best

Extended Community: RT:200:1 OSPF DOMAIN ID:0x0005:0x000000C80200

OSPF RT:0.0.0.0:2:0 OSPF ROUTER ID:45.45.45.4:0

mpls labels in/out nolabel/17

R2#show mpls forwarding-table

Local Outgoing Prefix Bytes Label Outgoing Next Hop

Label Label or Tunnel Id Switched interface

16 Pop Label 34.34.34.0/24 0 Fa0/0 23.23.23.3

18 No Label 12.12.12.0/24[V] 0 aggregate/cust1

19 16 4.4.4.4/32 0 Fa0/0 23.23.23.3

20 Pop Label 3.3.3.3/32 0 Fa0/0 23.23.23.3

21 No Label 1.1.1.1/32[V] 0 Fa2/0 12.12.12.1

22 No Label 10.1.1.0/24[V] 490 Fa2/0 12.12.12.1

R3:-

R3#sh ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface

4.4.4.4 1 FULL/BDR 00:00:35 34.34.34.4 FastEthernet1/0

2.2.2.2 1 FULL/DR 00:00:31 23.23.23.2 FastEthernet0/0

R3#show mpls ldp neighbor

Peer LDP Ident: 4.4.4.4:0; Local LDP Ident 3.3.3.3:0

TCP connection: 4.4.4.4.21070 - 3.3.3.3.646

State: Oper; Msgs sent/rcvd: 101/102; Downstream

Up time: 01:22:35

LDP discovery sources:

FastEthernet1/0, Src IP addr: 34.34.34.4

Addresses bound to peer LDP Ident:

34.34.34.4 4.4.4.4

Peer LDP Ident: 2.2.2.2:0; Local LDP Ident 3.3.3.3:0

TCP connection: 2.2.2.2.646 - 3.3.3.3.30173

State: Oper; Msgs sent/rcvd: 102/100; Downstream

Up time: 01:22:35

LDP discovery sources:

FastEthernet0/0, Src IP addr: 23.23.23.2

Addresses bound to peer LDP Ident:

23.23.23.2 2.2.2.2

R3#show mpls ldp discovery

Local LDP Identifier:

3.3.3.3:0

Discovery Sources:

Interfaces:

FastEthernet0/0 (ldp): xmit/recv

LDP Id: 2.2.2.2:0

FastEthernet1/0 (ldp): xmit/recv

LDP Id: 4.4.4.4:0

R3#show mpls forwarding-table

Local Outgoing Prefix Bytes Label Outgoing Next Hop

Label Label or Tunnel Id Switched interface

16 Pop Label 4.4.4.4/32 14366 Fa1/0 34.34.34.4

17 Pop Label 2.2.2.2/32 15433 Fa0/0 23.23.23.2

R4:-

R4#sh ip ospf 1 neighbor

Neighbor ID Pri State Dead Time Address Interface

3.3.3.3 1 FULL/DR 00:00:38 34.34.34.3 FastEthernet1/0

R4#sh ip ospf 100 neighbor

Neighbor ID Pri State Dead Time Address Interface

5.5.5.5 1 FULL/DR 00:00:31 45.45.45.5 FastEthernet2/0

R4#sh ip bgp vpnv4 all summary

BGP router identifier 4.4.4.4, local AS number 1

BGP table version is 40, main routing table version 40

9 network entries using 1368 bytes of memory

9 path entries using 468 bytes of memory

4/4 BGP path/bestpath attribute entries using 528 bytes of memory

2 BGP extended community entries using 80 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 2444 total bytes of memory

BGP activity 21/12 prefixes, 24/15 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd

2.2.2.2 4 1 440 446 40 0 0 06:27:49 3

R4#show ip bgp summary

BGP router identifier 4.4.4.4, 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 1 440 446 1 0 0 06:27:57 0

R4#sh ip bgp vpnv4 al

BGP table version is 50, local router ID is 4.4.4.4

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, x best-external

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 1:1 (default for vrf cust1)

*>i1.1.1.1/32 2.2.2.2 10 100 0 ?

*> 5.5.5.5/32 45.45.45.5 2 32768 ?

*>i10.1.1.0/24 2.2.2.2 10 100 0 ?

*>i12.12.12.0/24 2.2.2.2 0 100 0 ?

*> 20.1.1.0/24 45.45.45.5 2 32768 ?

*> 45.45.45.0/24 0.0.0.0 0 32768 ?

Route Distinguisher: 100:1

*>i1.1.1.1/32 2.2.2.2 10 100 0 ?

*>i10.1.1.0/24 2.2.2.2 10 100 0 ?

*>i12.12.12.0/24 2.2.2.2 0 100 0 ?

R4#sh ip route vrf cust1

Routing Table: cust1

Codes: L - local, 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, H - NHRP

+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/32 is subnetted, 1 subnets

B 1.1.1.1 [200/10] via 2.2.2.2, 00:24:25

5.0.0.0/32 is subnetted, 1 subnets

O 5.5.5.5 [110/2] via 45.45.45.5, 00:22:51, FastEthernet2/0

10.0.0.0/24 is subnetted, 1 subnets

B 10.1.1.0 [200/10] via 2.2.2.2, 00:24:25 -< metric set on R2

12.0.0.0/24 is subnetted, 1 subnets

B 12.12.12.0 [200/0] via 2.2.2.2, 00:24:25

20.0.0.0/24 is subnetted, 1 subnets

O 20.1.1.0 [110/2] via 45.45.45.5, 00:22:51, FastEthernet2/0

45.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 45.45.45.0/24 is directly connected, FastEthernet2/0

L 45.45.45.4/32 is directly connected, FastEthernet2/0

R5:-

R5#sh ip route

Codes: L - local, 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, H - NHRP

+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/32 is subnetted, 1 subnets

O E2 1.1.1.1 [110/10] via 45.45.45.4, 00:23:09, FastEthernet2/0

5.0.0.0/32 is subnetted, 1 subnets

C 5.5.5.5 is directly connected, Loopback0

10.0.0.0/24 is subnetted, 1 subnets

O E2 10.1.1.0 [110/10] via 45.45.45.4, 00:23:10, FastEthernet2/0

12.0.0.0/24 is subnetted, 1 subnets

O E2 12.12.12.0 [110/1] via 45.45.45.4, 00:23:10, FastEthernet2/0

20.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 20.1.1.0/24 is directly connected, FastEthernet0/0

L 20.1.1.1/32 is directly connected, FastEthernet0/0

45.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 45.45.45.0/24 is directly connected, FastEthernet2/0

L 45.45.45.5/32 is directly connected, FastEthernet2/0

R5#

Networklearner

Wednesday, 1 February 2017

OSPF as PE-CE protocol-Different Process ID on PEs -MPLS

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