Compaq 222863-001 TaskSmart W2200 Administration Guide - Page 109

TCP/IP, Addressing, Transmission Control Protocol/Internet Protocol TCP/IP was previously

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Networking Basics B-5 1 Transmits Receives 2 Transmits Transmits Waiting Waiting 4 Waiting 5 Transmits Receives 3 Collision Figure B-2. Ethernet 6 Receives Transmits TCP/IP Transmission Control Protocol/Internet Protocol (TCP/IP) was previously briefly mentioned and now can be covered in more detail. Internet Protocol (IP) is equivocal to the Network layer or Layer 3 of the ISO/OSI reference model. IP is responsible for addressing and routing packets. Packets are groups of data with a heading that carry data from source to destination. The IP layer can further divide a piece of data independent of the TCP layer because both processes are independent of each other. A more definitive understanding of TCP/IP may be sought by the user; but for the purpose of this networking overview, it is most important to understand the address scheme. TCP is found at the Transport layer or Layer 4 of the ISO/OSI reference model. Because of unreliable network conditions, TCP was designed, to ensure the successful transfer of a message between the origination and destination. TCP breaks up the data that it gets from the upper layers into pieces, which simplifies the transmission process. However, the TCP is also responsible for assembling the message at the other end and requesting pieces not received. Addressing Addressing a network is imperative if there is to be any communication between systems. There are two types of addresses when referring to networks. The first is a hard-wired NIC address that is associated with a computer that is connected to a specific local area network (LAN). The

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Networking Basics
B-5
1
Transmits
Receives
Transmits
Transmits
Collision
Transmits
Receives
Receives
Transmits
2
3
4
5
6
Waiting
Waiting
Waiting
Figure B-2.
Ethernet
TCP/IP
Transmission Control Protocol/Internet Protocol (TCP/IP) was previously
briefly mentioned and now can be covered in more detail. Internet Protocol
(IP) is equivocal to the Network layer or Layer 3 of the ISO/OSI reference
model. IP is responsible for addressing and routing packets. Packets are groups
of data with a heading that carry data from source to destination. The IP layer
can further divide a piece of data independent of the TCP layer because both
processes are independent of each other. A more definitive understanding of
TCP/IP may be sought by the user; but for the purpose of this networking
overview, it is most important to understand the address scheme.
TCP is found at the Transport layer or Layer 4 of the ISO/OSI reference
model. Because of unreliable network conditions, TCP was designed, to
ensure the successful transfer of a message between the origination and
destination. TCP breaks up the data that it gets from the upper layers into
pieces, which simplifies the transmission process. However, the TCP is also
responsible for assembling the message at the other end and requesting pieces
not received.
Addressing
Addressing a network is imperative if there is to be any communication
between systems. There are two types of addresses when referring to
networks. The first is a hard-wired NIC address that is associated with a
computer that is connected to a specific local area network (LAN). The