HP FlexNetwork HSR6600 Configuration Manual page 290

•
PE 1 and PE 2 are the provider carrier's PE routers. They provide VPN services for the
customer carrier.
•
CE 1 and CE 2 are the customer carrier's routers. They are connected to the provider carrier's
backbone as CE routers.
•
PE 3 and PE 4 are the customer carrier's PE routers. They provide MPLS L3VPN services for
the end customers.
•
CE 3 and CE 4 are customers of the customer carrier.
•
The customer carrier and the provider carrier reside in different ASs.
The key to carrier's carrier deployment is to configure exchange of two kinds of routes:
•
Exchange of the customer carrier's internal routes on the provider carrier's backbone.
•
Exchange of the end customers' VPN routes between PE 3 and PE 4, the PEs of the customer
carrier. In this process, an MP-EBGP peer relationship must be established between PE 3 and
PE 4.
Figure 78 Network diagram
Table 20 Interface and IP address assignment
Device Interface
CE 3 GE1/1/1
PE 3 Loop0
GE1/1/1
POS1/1/1
CE 1 Loop0
POS1/1/0
POS1/1/1
PE 1 Loop0
POS1/1/0
POS1/1/1
IP address
100.1.1.1/24
1.1.1.9/32
100.1.1.2/24
10.1.1.1/24
2.2.2.9/32
10.1.1.2/24
11.1.1.1/24
3.3.3.9/32
11.1.1.2/24
30.1.1.1/24
280
Device Interface
CE 4 GE1/1/1
PE 4 Loop0
GE1/1/1
POS1/1/1
CE 2 Loop0
POS1/1/0
POS1/1/1
PE 2 Loop0
POS1/1/0
POS1/1/1
IP address
120.1.1.1/24
6.6.6.9/32
120.1.1.2/24
20.1.1.2/24
5.5.5.9/32
21.1.1.2/24
20.1.1.1/24
4.4.4.9/32
30.1.1.2/24
21.1.1.1/24