49network ProtoCols
• Type of Service: is eld is used to specify if a datagram passes through a
route with the minimum delay, the maximum throughput, the maximum reli-
ability, or the minimum cost.
•
Total Length: is eld species the length of a datagram, including both the
header and the data section.
•
Identication: is eld is used to identify the datagram to which the frag-
ments belong. Together with the source address, the value in the identication
eld can be used to reassemble the fragments back to the original datagram.
•
Flags: is eld is used to set and display fragment-related properties.
•
Fragment Oset: e content of this eld is used to instruct the receiver how
to reassemble a fragmented datagram.
•
Time to Live (TTL): e ...