Implementing MPLS VPNs over IP Tunnels on Cisco IOS XR Software

How to Configure MPLS VPNs over IP Tunnels

 

Command or Action

Purpose

Step 14

 

 

address-family {vpnv4 unicast}

Configures VPNv4 address family.

 

Example:

 

 

RP/0/0/CPU0:router(config-bgp-nbr-af)#

 

 

address-family vpnv4 unicast

 

Step 15

 

 

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)?

 

RP/0/0/CPU0:router(config-bgp-nbr-af)# end

[cancel]:

 

 

 

or

Entering yes saves configuration changes to the

 

RP/0/0/CPU0:router(config-bgp-nbr-af)# commit

 

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.

 

 

 

Configuring the Backbone Carrier Core for IP Tunnels

Configuring the backbone carrier core requires setting up connectivity and routing functions for the CSC core and the CSC-PE routers. To do so, you must complete the following high-level tasks:

Verify IP connectivity in the CSC core.

Configure IP tunnels in the core.

Configure VRFs for CSC-PE routers.

Configure multiprotocol BGP for VPN connectivity in the backbone carrier.

Configuring CSC-PE Routers for IP Tunnels

Perform this task to configure a CSC-PE for IP tunnels.

For information on how to configure CSC-CE routers, see the Implementing MPLS Layer 3 VPNs on Cisco IOS XR Software module.

SUMMARY STEPS

1.configure

2.router bgp as-number

3.address-family {vpnv4 unicast}

 

Cisco IOS XR MPLS Configuration Guide

MPC-288

OL-12284-01

Page 16
Image 16
Cisco Systems MPC-273 manual Configuring the Backbone Carrier Core for IP Tunnels, MPC-288