3Com 8807 Configuration Manual page 538

538 C 49: BGP/MPLS VPN C
HAPTER
Configuring CE Router
ONFIGURATION
physical link with IP capabilities from PE to PE; advertise and update VPN network
information.
CE router
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.
PE router
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:
"Configuring basic MPLS capability"
■
"Defining BGP/MPLS VPN site"
■
"Configuring PE-CE route exchanging"
■
"Configuring PE-PE route exchanging"
■
P router
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.
Creating static route
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.
Table 523 Create/delete a static route in VPN instance routing table
Operation
Create a specified VPN-instance
static route
Delete a specified VPN-instance
static route
By default, the preference value for a static route is 60. You can also specify
preference for a static route.
Configuring RIP
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
Command
ip route-static ip-address { mask | mask-length } {
interface-name | gateway-address } [ preference
preference-value ] [ reject | blackhole ]
undo ip route-static ip-address { mask | mask-length } [
interface-name | gateway-address ] [ preference
preference-value ]