Which TCP setting is tuned to minimize the risk of fragmentation on a GRE/IP tunnel?
A. MSS
B. MTU
C. MRU
D. window size
Answer:A
Which TCP setting is tuned to minimize the risk of fragmentation on a GRE/IP tunnel?
A. MSS B. MTU C. MRU D. window size
Explanation: The TCP Maximum Segment Size (TCP MSS) defines the maximum amount of data that a host is willing to accept in a single TCP/IP datagram. This TCP/IP datagram might be fragmented at the IP layer. The MSS value is sent as a TCP header option only in TCP SYN segments. Each side of a TCP connection reports its MSS value to the other side. Contrary to popular belief, the MSS value is not negotiated between hosts. The sending host is required to limit the size of data in a single TCP segment to a value less than or equal to the MSS reported by the receiving host.