b.
Adds the export target attribute of the MPLS VPN on the service provider network to the
extended community attribute list.
c.
Forwards the VPNv4 route.
To implement exchange of sub-VPN routes between customer PEs and service provider PEs,
•
MP-EBGP peers must be established between provider PEs and provider CEs.
Figure 70 Network diagram
Customer VPN
GE2/1/1
CE 3
GE2/1/1
AS 65410
SUB_VPN 1
Table 19 Interface and IP assignment
Device
CE 1
CE 3
CE 5
PE 1
PE 3
Configuration procedure
1.
Configure MPLS L3VPN on the service provider backbone. Enable IS-IS, enable LDP, and establish
an MP-IBGP peer relationship between PE 1 and PE 2:
# Configure PE 1.
<PE1> system-view
PE 1
POS2/1/0
CE 1
POS2/1/1
AS 200
VPN 1
POS2/1/0
POS2/1/1
PE 3
GE2/1/2
CE 5
GE2/1/1
AS 65411
SUB_VPN 2
Interface
IP address
Loop0
2.2.2.9/32
POS2/1/0
10.1.1.2/24
POS2/1/1
11.1.1.1/24
GE2/1/1
100.1.1.1/24
GE2/1/1
110.1.1.1/24
Loop0
3.3.3.9/32
POS2/1/0
11.1.1.2/24
POS2/1/1
30.1.1.1/24
Loop0
1.1.1.9/32
GE2/1/1
100.1.1.2/24
GE2/1/2
110.1.1.2/24
POS2/1/1
10.1.1.1/24
AS 100
PE 2
POS2/1/1
POS2/1/0
POS2/1/1
Carrier VPN
POS2/1/0
POS2/1/1
CE 4
AS 65420
SUB_VPN 1
Device
CE 2
CE 4
CE 6
PE 2
PE 4
264
CE 2
Customer VPN
AS 200
VPN 1
POS2/1/1
PE 4
GE2/1/2
GE2/1/1
CE 6
GE2/1/1
GE2/1/1
AS 65421
SUB_VPN 2
Interface
IP address
Loop0
5.5.5.9/32
POS2/1/0
21.1.1.2/24
POS2/1/1
20.1.1.1/24
GE2/1/1
120.1.1.1/24
GE2/1/1
130.1.1.1/24
Loop0
4.4.4.9/32
POS2/1/0
30.1.1.2/24
POS2/1/1
21.1.1.1/24
Loop0
6.6.6.9/32
GE2/1/1
120.1.1.2/24
GE2/1/2
130.1.1.2/24
POS2/1/1
20.1.1.2/24