You noticed a recent change to the BGP configuration on a PE router, the bgp scan time has been
changed from the default value to 30s. Which three effects will this change have? (Choose three.)
A.
The BGP table will be examined and verified more frequently
B.
The BGP keepalive messages will be sent to the BGP peers at a faster rate
C.
The BGP table will be modified more quickly in the event that a next-hop address becomes
unreachable
D.
The CPU load of the router will increase
E.
The minimum time interval between sending EBGP and IBGP routing updates will decrease
F.
The BGP convergence time will increase
http://blog.ine.com/2010/11/22/understanding-bgp-convergence/