Ch ng 3.ươ
Giao th c t ng giao v n (transport layer)ứ ầ ậ
Đoàn Th Thu Hàị
Chương 3. Giao thức tầng giao vận (transport layer) 2
1-6/2005
OSI
Chương 3. Giao thức tầng giao vận (transport layer) 3
1-6/2005
Ch3. The Transport Layer
1. Transport Layer Services & Principles.
2. Multiplexing/Demultiplexing.
3. Connectionless Transport (UDP).
4. Principles of Reliable Data Transfer (RDT).
5. Connection-oriented Transport (TCP).
6. Congestion Control.
7. S d ng TCP hay UDPử ụ
Chương 3. Giao thức tầng giao vận (transport layer) 4
1-6/2005
Transport Layer Services & Principles
Cung c p ph ng ti n truy n ấ ươ ệ ề
thông logic (logical
communication) gi a các ữ
applications.
PDUs
application: messages.
transport: segments (đo n).ạ
Các msg t t ng application g i ừ ầ ử
xu ng đc chia nh thành các ố ượ ỏ
đo n (segments).ạ
Transport protocol đc th c ượ ự
thi t i các tr m cu i (end ạ ạ ố
system).
application
transport
network
data link
physical
application
transport
network
data link
physical
network
data link
physical
network
data link
physical
network
data link
physical
network
data link
physical
network
data link
physical
logical end-end transport
Data
Message
Segment
Frame
Bit
Packet
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