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Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 3 Configuring Remote Access to MPLS VPN
Configuration Tasks for RA to MPLS VPN
Configuring a Dedicated PVC
To configure a dedicated PVC for each VPN, enter the following commands beginning in global
configuration mode:
Configuring BGP to Advertise Networks
To configure BGP to advertise the networks for each VPN, enter the following commands beginning in
global configuration mode:
Command
Purpose
Step 1
Router(config)#
interface atm
slot
/
port
.
subinterface-number
point-to-point
Creates a point-to-point ATM subinterface. Enters subinterface
configuration mode.
Step 2
Router(config-subif)#
ip vrf forwarding
vrf-name
Associates a VRF with the ATM point-to-point subinterface.
Step 3
Router(config-subif)#
ip address
address
Assigns an IP address to the ATM subinterface.
Step 4
Router(config-subif)#
pvc
[
vpi
/
vci
number
]
Configures the PVC on the subinterface. Enters PVC
configuration mode.
Step 5
Router(config-subif-pvc)#
encapsulation
aal5snap
Configures the ATM adaptation layer (AAL) and encapsulation
type on the ATM PVC.
Command
Purpose
Step 1
Router(config)#
router bgp
autonomous-system
Configures the internal BGP (iBGP) routing process with the
autonomous system number passed along to other iBGP
routers.
Step 2
Router(config-router)#
no bgp default
ipv4-unicast
Disables IPv4 BGP routing.
Step 3
Router(config-router)#
neighbor
{
ip-address
|
peer-group-name
}
remote-as
as-number
Configures the neighboring PE router’s IP address or iBGP
peer group and identifies it to the local autonomous system.
The MP-BGP neighbors must use the loopback addresses.
Step 4
Router(config-router)#
neighbor
{
ip-address
|
peer-group-name
}
update-source
interface-type
Allows iBGP sessions to use any operational interface for
TCP connections.
Step 5
Router(config-router)#
neighbor
{
ip-address
|
peer-group-name
}
activate
Activates route exchanges with the global BGP neighbors.
Step 6
Router(config-router)#
address-family ipv4 vrf
vrf-name
Enters address family configuration mode and configures the
VRF routing table for BGP routing sessions that use standard
IPv4 address prefixes.
The
vrf-name
argument specifies the name of the virtual
routing and forwarding (VRF) instance to associate with
subsequent IPv4 address family configuration mode
commands.
