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8/14/2019 Encapsulamiento Redes
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POTTINGJesus Salvador Organista Jaimes
Diana Laura Millan Morales
Esteban Reyes MoralesDeyanira Acalco Castañeda
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Encapsulation wraps data with the necessary protocol
information before it joins the network traffic.
Therefore, as data moves through the layers of the OSI
model are headers, trailers, and other types of
information
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Once the data is sent from the source, traveling through the
application layer and through the other layers downstream.
The packaging and the flow of data exchanged through
changes as the layers perform their functions for end users.
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Networks must perform five conversion steps to encapsulate the
data:
Create the data. When a user sends an email message, their
alphanumeric characters are converted into data that can travel
across the internetwork.
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Packing data to be transported from end to end. The
data is packaged to be transported by the
internetwork. By using segments, the transport
function ensures that message hosts at both ends ofemail system can communicate reliably.
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Add the IP network address to the header. The data is
put into a packet or datagram packet contains a
header with the logical addresses of origin anddestination. These addresses help network devices
send packets through the network along a chosen
path.
Add the header information and the end of the datalink layer. Each network device must put the packet
into a frame. The grid allows you to connect to the
next network device connected directly to the link.
Each device in the chosen network path requires
framing to connect to the next device.
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Converting to bits for transmission. The plot should
become a pattern of ones and zeros (bits) for
transmission through the medium. A timer function
allows devices to distinguish these bits as theymove through the middle. The media in the physical
internetwork may vary along the route used. For
example, the email message can originate in a LAN,
through the backbone of a university and go out aWAN link until you reach your destination on another
remote LAN.
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Data network layer is sent to the data link layer for transmission over a physical link,
which is usually point to point in a WAN. The data link layer creates a frame around
the data network layer, so that apply checks and necessary. Each WAN connection
type uses a Layer 2 protocol to encapsulate traffic while crossing the WAN link. To
ensure you are using the correct encapsulation protocol, you must configure the typeof Layer 2 encapsulation used in each router serial interface. The encapsulation
protocol to be used depends on the WAN technology and equipment. Most of the web
is based on the HDLC standard.
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The HDLC framing ensures reliable data delivery
unreliable lines and includes signaling mechanisms for
flow and error control.
WAN encapsulation.
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Network data is encapsulated in an HDLC frame.