HP HPE FlexNetwork MSR Router Series Configuration Manual page 388

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PE 3 and PE 4 are the customer carrier's PE routers. They provide IPv6 MPLS L3VPN services
to end customers.
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CE 3 and CE 4 are customers of the customer carrier.
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The customer carrier and the provider carrier reside in the same AS.
The key to the carrier's carrier deployment is to configure exchange of two kinds of routes:
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Exchange of the customer carrier's internal routes on the provider carrier's backbone.
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Exchange of the end customers' internal routes between PE 3 and PE 4, the PEs of the
customer carrier. In this process, an MP-IBGP peer relationship must be established between
PE 3 and PE 4.
Figure 94 Network diagram
Table 34 Interface and IP address assignment
Device
CE 3
PE 3
CE 1
PE 1
Configuration procedure
1. Configure MPLS L3VPN on the provider carrier backbone. Start IS-IS as the IGP, enable LDP
on PE 1 and PE 2, and establish an MP-IBGP peer relationship between the PEs:
# Configure PE 1.
Interface IP address
GE2/0/1 2001:1::1/96
Loop0 1.1.1.9/32
GE2/0/1 2001:1::2/96
POS2/2/1 10.1.1.1/24
Loop0 2.2.2.9/32
POS2/2/0 10.1.1.2/24
POS2/2/1 11.1.1.1/24
Loop0 3.3.3.9/32
POS2/2/0 11.1.1.2/24
POS2/2/1 30.1.1.1/24
Device Interface
CE 4 GE2/0/1
PE 4 Loop0
GE2/0/1
POS2/2/1
CE 2 Loop0
POS2/2/0
POS2/2/1
PE 2 Loop0
POS2/2/0
POS2/2/1
378
IP address
2001:2::1/96
6.6.6.9/32
2001:2::2/96
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