Implementing MPLS VPNs over IP Tunnels on Cisco IOS XR Software
How to Configure MPLS VPNs over IP Tunnels
DETAILED STEPS
| Command or Action | Purpose |
Step 1 |
|
|
configure | Enters global configuration mode. | |
| Example: |
|
| RP/0/RP0/CPU0:router# configure |
|
Step 2 |
|
|
interface type | Enters interface configuration mode and enables a | |
|
| Loopback interface. |
| Example: |
|
| RP/0/RP0/CPU0:router(config)# interface |
|
| Loopback0 |
|
Step 3 |
|
|
ipv4 address | Enters an IPv4 address and mask for the associated IP | |
|
| subnet. The network mask can be specified in either of two |
| Example: | ways: |
|
| |
| • The network mask can be a | |
| 1.1.1.1 255.255.255.255 | address. For example, 255.0.0.0 indicates that each bit |
|
| equal to 1 means that the corresponding address bit |
|
| belongs to the network address. |
|
| • The network mask can be indicated as a slash (/) and |
|
| number. For example, /8 indicates that the first 8 bits of |
|
| the mask are ones, and the corresponding bits of the |
|
| address are the network address. |
Step 4 |
|
|
end | Saves configuration changes. | |
| or | • When you issue the end command, the system prompts |
|
| |
| commit | you to commit changes: |
|
| Uncommitted changes found, commit them before |
| Example: | exiting(yes/no/cancel)? |
| [cancel]: | |
|
| |
| or | – Entering yes saves configuration changes to the |
| ||
| running configuration file, exits the configuration | |
|
| session, and returns the router to EXEC mode. |
|
| – Entering no exits the configuration session and |
|
| returns the router to EXEC mode without |
|
| committing the configuration changes. |
|
| – Entering cancel leaves the router in the current |
|
| configuration session without exiting or |
|
| committing the configuration changes. |
|
| • Use the commit command to save the configuration |
|
| changes to the running configuration file and remain |
|
| within the configuration session. |
|
|
|
| Cisco IOS XR MPLS Configuration Guide |
|
