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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Header overhead ?
A typical IEEE 802.3 Ethernet packet structure is illustrated in Figure 19.8, with the terminology explained below.
• Preamble: Uses 64 bits to synchronize with the signal’s frequency before transmitting the real data.

• MAC Dest/Src: Records the destination and source MAC addresses of the packet, each with 6 bytes.
• Length: Specifies the length of the IP packet with 2 bytes.
• Frame-check sequence: Contains a 32-bit cyclic redundancy check that enables the detection of corrupted data within the packet.
• Inter-frame gap: After a packet has been sent, transmitters are required to transmit a total of 96 bits of “idle line” state before transmitting the next packet.
• IPv6 header: 40 bytes in total.
• TCP header: 20 bytes in total.
What is the percentage of payload data rate if we are to send a 250-byte packet?
Hel-----------lo -----------Sir-----------/Ma-----------dam-----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------acq-----------uis-----------iti-----------on -----------of -----------my -----------sol-----------uti-----------on.-----------Ple-----------ase----------- pi-----------ng -----------me -----------on -----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be----------- ca-----------tch-----------