Configuring A Hub-Spoke Network - HP 12500 Series Configuration Manual

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CEs of the same VPN can ping each other, whereas those of different VPNs can not. For example,
CE 1 can ping CE 3 (6.6.6.9), but cannot ping CE 4 (7.7.7.9):
[CE1] ping 6.6.6.9
PING 6.6.6.9: 56
Reply from 6.6.6.9: bytes=56 Sequence=1 ttl=253 time=72 ms
Reply from 6.6.6.9: bytes=56 Sequence=2 ttl=253 time=34 ms
Reply from 6.6.6.9: bytes=56 Sequence=3 ttl=253 time=50 ms
Reply from 6.6.6.9: bytes=56 Sequence=4 ttl=253 time=50 ms
Reply from 6.6.6.9: bytes=56 Sequence=5 ttl=253 time=34 ms
--- 6.6.6.9 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 34/48/72 ms
[CE1] ping 7.7.7.9
PING 7.7.7.9: 56
Request time out
Request time out
Request time out
Request time out
Request time out
--- 7.7.7.9 ping statistics ---
5 packet(s) transmitted
0 packet(s) received
100.00% packet loss

Configuring a hub-spoke network

Network requirements
The spoke-CEs are not permitted to communicate with each other directly. Data transmission between
them depends on the hub-CE.
Configure eBGP to exchange VPN routing information between spoke-CE and spoke-PE, and between
hub-CE and hub-PE.
Configure OSPF between spoke-PE and hub-PE to ensure IP connectivity between PEs, and configure
MP-iBGP to exchange VPN routing information.
Direct 0 0
BGP 255 0
Direct 0 0
Direct 0 0
data bytes, press CTRL_C to break
data bytes, press CTRL_C to break
264
127.0.0.1 InLoop0
3.3.3.9 NULL0
127.0.0.1 InLoop0
127.0.0.1 InLoop0