BGP AS Override

Use AS Override in to overrule the loop prevention mechanism
AS override: this can be configured on the PE routers, the AS number will be replaced with the AS number from the service provider.

This should be done on PE1 and PE2 routers
neighbor 192.168.12.1 as-override----command to enable AS Override

When CE1 and CE2 are in Same AS number say AS2 and when CE1 receives the update from CE2 with the same Autonomous number , it will discard the received update and to avoid this we are using as-override in PE Routers

[arunkrishna]

Excellent video, i did it, working fine, if we have more PE routers and customers, all pe must establish full mesh topology ?so in that case we need route reflector right?