MPLS AToM Cisco configuration template and Basic troubleshooting

The documentation test, the wrong way of thinking based on VPN fault pin break and exclude the 7th chapter. AToM.

Topology map:

Here, R1 to R3 to do atom.

Key configuration:

R1 and R4 are two computers:

R1 Interface f0/0=1.1.1.1/24

R4 Interface f0/0=1.1.1.2/24

R1 as PE-1-R1:

Hostname PE-1-R2

IP CEF

MPLS Label Protocol LDP

Interface Loopback0

IP address 10.1.1.1 255.255.255.255

!

Interface fastethernet0/0

No IP address

Duplex full

Speed auto

Xconnect 10.1.1.3 Encapsulation MPLS

!

Interface fastethernet1/0

IP address 2.1.1.1 255.255.255.0

Duplex full

Speed auto

MPLS Label Protocol LDP

MPLS IP

!

Router OSPF 1

Router-id 10.1.1.1

Log-adjacency-changes

Network 0.0.0.0 255.255.255.255 Area 0

R2 as P-router:

Hostname P-R3

IP CEF

MPLS Label Protocol LDP

!

Interface Loopback0

IP address 10.1.1.2 255.255.255.255

!

Interface fastethernet0/0

IP address 2.1.1.2 255.255.255.0

Duplex full

Speed auto

MPLS Label Protocol LDP

MPLS IP

!

Interface fastethernet1/0

IP address 3.1.1.1 255.255.255.0

Duplex full

Speed auto

MPLS Label Protocol LDP

MPLS IP

!

Router OSPF 1

Router-id 10.1.1.2

Log-adjacency-changes

Network 0.0.0.0 255.255.255.255 Area 0