Suppose that host A is connected to a router R 1, R 1 is connected to another router, R
2, and R 2 is connected to host B. Suppose that a TCP message that contains 900 bytes
of data and 20 bytes of TCP header is passed to the IP code at host A for delivery to B.
Show the Total length, Identification, DF, MF, and Fragment offset fields of the IP
header in each packet transmitted over the three links. Assume that link A-R1 can
support a maximum frame size of 1024 bytes including a 14-byte frame header, link
R1-R2 can support a maximum frame size of 512 bytes, including an 8-byte frame
header, and link R2-B can support a maximum frame size of 512 bytes including a 12-
byte frame header.