R21xx-HP FlexFabric 11900 MPLS Configuration Guide
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[SPE2-bgp] quit
# Advertise to UPE 2 the routes permitted by a routing policy (the routes of CE 1).
[SPE2] ip prefix-list hope index 10 permit 10.2.1.1 24
[SPE2] route-policy hope permit node 0
[SPE2-route-policy-hope-0] if-match ip address prefix-list hope
[SPE2-route-policy-hope-0] quit
[SPE2] bgp 100
[SPE2-bgp] ipv4-family vpnv4
[SPE2-bgp-vpnv4] peer 4.4.4.9 upe route-policy hope export
9. Verify the configurations:
After completing all the configurations, CE 1 and CE3 can learn each other's interface routes and
can ping each other. CE 2 and CE 4 cannot learn each other's interface routes and cannot ping
each other.
Configuring BGP AS number substitution
Network requirements
As shown in Figure 51, CE 1 and CE 2 belong to VPN 1 and are connected to PE 1 and PE 2, respectively.
The two CEs have the same AS number, 600. Configure BGP AS number substitution on the PEs to enable
the CEs to communicate with each other.
Figure 51 Network diagram
Device Interface IP address
Device
Interface
IP address
CE 1 Vlan-int11 10.1.1.1/24
P
Loop0
2.2.2.9/32
Vlan-int12 100.1.1.1/24 Vlan-int11 30.1.1.1/24
PE 1 Loop0 1.1.1.9
/
32
Vlan-int12 20.1.1.2
/
24
Vlan-int11 10.1.1.2
/
24
PE 2
Loop0
3.3.3.9/32
Vlan-int12 20.1.1.1/24 Vlan-int11 30.1.1.2/24
CE 2 Vlan-int12 10.2.1.1/24
Vlan-int12 10.2.1.2
/
24
Vlan-int13 200.1.1.1/24










