INTERPRETACIÓN DE VISTAS ORTOGRAFICAS DIBUJO EN INGENIERIA I CLASE 8 ING. HECTOR BENITES SEM. 09.
07 08. Multipllexacion y Modelo OSI Eng.ppt - icao.int 08... · 11/10/2010 1 Ing. Manuel Benites 7...
Transcript of 07 08. Multipllexacion y Modelo OSI Eng.ppt - icao.int 08... · 11/10/2010 1 Ing. Manuel Benites 7...
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Ing. Manuel Benitesg
7 Multiplexing7 Multiplexinga. Frequency division (FDM )b. Time division (TDM)c. Applications and hierarchies
8 El Modelo OSIa Architecture and layers of the modela. Architecture and layers of the modelb. Functions and interconnection of layers
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Multiplexing categories
7 Multiplexing
7 Multiplexinga. Frequency division (FDM)
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7 Multiplexinga. Frequency division (FDM )
7 Multiplexinga. Frequency division (FDM)
FDM is a multiplexing technique that combines analog signals.
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FDM Process
7 Multiplexinga. Frequency division (FDM)
Example of FDM multiplexing
7 Multiplexinga. Frequency division (FDM)
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7 Multiplexingb. Time division (TDM)
7 Multiplexingb. Time division (TDM)
TDM is a digital multiplexing technique for combining several low‐speed channels into one high‐capacity channel.
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Synchronous TDM multiplexing
7 Multiplexingb. Time division (TDM)
Figure 3-37
7 Multiplexingb. Time division (TDM)
Synchronous TDM multiplexingy p g
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7 Multiplexingb. Time division (TDM)
In the synchronous TDM, the data rate of the link is n times faster, and the unit of duration is n times shorter.
Figure 3-39
Asynchronous TDM
7 Multiplexingb. Time division (TDM)
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7 Multiplexingc. Applications and hierarchies
Analog hierarchy
7 Multiplexingc. Applications and hierarchies
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8 The OSI Model8 The OSI Modela. Architecture and layers of the modelb. Functions and interconnection of layers
EstablishedEstablished inin 19471947 thethe InternationalInternational StandardsStandards
8 The OSI Modela. Architecture and layers of the model
EstablishedEstablished inin 19471947,, thethe InternationalInternational StandardsStandardsOrganizationOrganization (OSI)(OSI) isis aa multinationalmultinational organizationorganizationconcernedconcerned withwith attainingattaining agreementagreement onon internationalinternationalstandardsstandards..
AnAn OSIOSI standardstandard thatthat coverscovers allall aspectsaspects ofof networknetworkpp ffcommunicationscommunications isis thethe OpenOpen SystemsSystems InterconnectionInterconnectionmodelmodel.. ItIt waswas thethe firstfirst modelmodel introducedintroduced inin thethe 19701970ss..
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8 The OSI modela. Architecture and layers of the model
The OSI seven‐layer model
ISO model – Interaction between layers
8 The OSI modela. Architecture and layers of the model
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An exchange using the ISO model
8 The OSI modelb. Functions and interconnection of layers
Physical layer
8 The OSI modelb. Functions and interconnectin of layers
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8 The OSI modelb. Functions and interconnection of layers
The physical layer is responsible for the movement of individual bits from one node (hop) to the next
Data link layer
8 The OSI modelb. Functions and interconnection of layers
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8 The OSI modelb. Functions and interconnection of layers
The data link layer is responsible for moving frames from one hop to the next.
Hop-to-hop delivery
8 The OSI modelb. Functions and interconnection of layers
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Network layer
8 The OSI modelb. Functions and interconnection of layers
8 The OSI modelb. �Functions and interconnection of levels
The network layer is responsible for delivering individual packets from the source host to the destination host.
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Source – destination delivery
8 The OSI modelb. Functions and interconnection of layers
Transport layer
8 The OSI Modelb. Functions and interconnection of layers
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8 The OSI modelb. Functions and interconnection of layers
The transport layer is responsible for delivering a message from one process to another.
Reliability in message deliveryProcess - process
8 The OSI modelb. Functions and interconnection of layers
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Session layer
8 The OSI modelb. Functions and interconnection of layers
8 The OSI modelb. Functions and interconnection of layers
The session layer is responsible for dialogue control and syncronization.
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Presentation layer
8 The OSI modelb. Functions and interconnection of layers
8 The OSI modelb. Functions and interconnection of layers
The presentation layer is responsible for translation, compression and encryption
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Application layer
8 The OSI modelb. Functions and interconnection of layers
8 The OSI modelb. Functions and interconnection of layers
The application layer is responsible for the provision of services to the user.
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Summary of layers
8 The OSI modelb. Functions and interconnection of layers