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C

HAPTER

 49: BGP/MPLS VPN C

ONFIGURATION

physical link with IP capabilities from PE to PE; advertise and update VPN network 
information.

The configuration on CE is relative simple. Only static route, RIP, OSPF or EBGP 
configuration is needed for VPN routing information exchange with the PE 
connected, MPLS configuration is not needed.

The configuration on PE is relative complex. After the configuration, the PE 
implements MPLS/BGP VPN core functions.

The following sections describe the configuration tasks on a PE device:

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The configuration on P device is relative simple. The main task is to configure 
MPLS basic capacity on the P device to support LDP and MPLS forwarding.

The following are detailed configurations.

As a customer-side device, only basic configuration is required on a CE router, for 
routing information exchange with PE router. Currently route switching modes 
available include static route, RIP, OSPF, EBGP, and so on.

If you select static route mode for CE-PE route switching, you should then 
configure a private static route pointing to PE on CE.

Perform the following configuration in the system view.

By default, the preference value for a static route is 60. You can also specify 
preference for a static route.

If you select RIP mode for CE-PE route switching, you should then configure RIP on 
CE. For detailed RIP configuration steps, see the RIP configuration part in routing 

Table 523   Create/delete a static route in VPN instance routing table

Create a specified VPN-instance 
static route 

ip route-static ip-address { mask | mask-length } { 
interface-name | gateway-address } [ preference 
preference-value ] [ reject | blackhole ] 

Delete a specified VPN-instance 
static route 

undo ip route-static ip-address { mask | mask-length } [ 
interface-name | gateway-address ] [ preference 
preference-value ]