Implementing MPLS VPNs over IP Tunnels on Cisco IOS XR Software
How to Configure MPLS VPNs over IP Tunnels
Configuring a CFI VRF Interface
Perform this task to associate a VPN routing and forwarding (VRF) instance with an interface or a subinterface on the PE routers.
SUMMARY STEPS
1.configure
2.interface type
3.vrf
4.ipv4 address
5.ipv6 address
6.dot1q vlan
7.end or commit
DETAILED STEPS
| Command or Action | Purpose |
Step 1 |
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configure | Enters global configuration mode. | |
| Example: |
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| RP/0/RP0/CPU0:router# configure |
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Step 2 |
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interface type | Enters interface configuration mode and enables a | |
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| GigabitEthernet interface. |
| Example: |
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| RP/0/RP0/CPU0:router(config)# interface |
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| GigabitEthernet0/0/0/1.1 |
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Step 3 |
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vrf | Specifies a VRF name. | |
| Example: |
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Step 4 |
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ipv4 address | Enters an IPv4 address and mask for the associated IP | |
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| subnet. The network mask can be specified in either of two |
| Example: | ways: |
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| • The network mask can be a | |
| 100.1.10.2 255.255.255.0 | address. For example, 255.0.0.0 indicates that each bit |
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| equal to 1 means that the corresponding address bit |
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| belongs to the network address. |
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| • The network mask can be indicated as a slash (/) and |
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| number. For example, /8 indicates that the first 8 bits of |
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| the mask are ones, and the corresponding bits of the |
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| address are network address. |
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| Cisco IOS XR MPLS Configuration Guide |
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