問題文
A data center fabric uses MP-BGP between its border devices. Which statement describes what the multiprotocol extension adds to BGP?
選択肢
- It replaces the path selection process with a shortest path calculation for several kinds of address family, and it tags each route with the total cost of the links it crossed.
- It converts the reachability information for several kinds of address family into link state records, and it hands each block to the interior routing process.
- It removes the need for a session between the two devices, and it floods reachability information for several kinds of address family to every device.
- It lets one session carry reachability information for several kinds of address family, and it tags each block of the information with the family it belongs to.