Refer to the Exhibit. How can Provider B move to AS 601 without forcing Domain A to immediately reconfigure?
Exhibit:
A.
Configure a second BGP AS on the Provider B router. Use the local AS feature with the dual-as keyword.
B.
Originate a default route from the Provider A network into Domain ‘s network. This will draw routed traffic into the provider network.
C.
Configure a confederation between Domain A and the provider networks. Use the BGP translate AS feature at the edge of the confederation.
D.
Domain A must update its BGP neighbor statements or the BGP sessions will no longer match.
E.
Add a wide area link between Provider A and Domain A configured for eBGP peering. Configure the customer BGP to prevent it from becoming a transit network.