Which BGP attribute is usually used to determine the path along which data flows enter an AS?
Which BGP attribute is usually used to determine the path along which data flows enter an AS?
The Multi-Exit Discriminator (MED) attribute is used in BGP to influence the path selection for incoming traffic to an Autonomous System (AS). This attribute helps determine which path inbound traffic should use when there are multiple entry points into the AS. Therefore, option D (MED) is the correct choice.
Local-preference
local pre is for outbound routes
LocalPref is for outbound. MED for inbound flows, so D is correct.