We have two data centers (say A and B)which connected to the service provider. We are using BGP. The two data centers have the same AS, say 12345. Both data centers connect to the service provider.
If data center A advertises a network info, say network 10, to the service provider which replace the 'AS 12345' with her AS and sends the network info
back to data center B.
It applies to data center B as well.
Any ideas why the replacement of AS happens?????
Thanks in advance