A Professional’s Guide to Data Communication in a TCP/IP World phần 8 ppt
A Professional''''s Guide To Data Communication In a TCP/IP World pptx
... contain additional facilities that are used to detect and isolate line
and equipment problems.
2.2 Making a Data Call
Consider a host (Host A) in a multilocation company that needs a data file to ... enough information to identify the
datagram, the message includes the IP header and the first 8 bytes of the datagram
payload. A listing of a destination unreachable fr...
A Professional’s Guide to Data Communication in a TCP/IP World phần 3 pptx
... shows a token and the fields in a frame containing an IP datagram. The
frame consists of an IEEE 80 2.5 header, an IEEE 80 2.2 LLC header, an IEEE 80 2.3
SNAP header, the payload (IP datagram), and an ... constructed. Added to the IP datagram, they form the IP frame.
•
In the physical sublayer the logical data stream is converted to a signal stream
to match the transmissi...
A Professional’s Guide to Data Communication in a TCP/IP World phần 4 ppsx
... link
X.25-2
LAP-B
Physical
X.25-1
X.21
Packet
LAP-B
X.21
Data link
Physical
Packet network
Node stack
Header
Network interface layer
Packet
LAP-B
Header
LAP-B
Trailer
DATA
DATA
≤ 4096 Logical Channels
User-network ... frame before it is delivered to the Internet layer at
72 Wide Area Networks
ATM
adaptation
layer
ATM layer
Physical
layer
AAL Convergence sublayer
AAL Segmentation and
rea...
A Professional’s Guide to Data Communication in a TCP/IP World phần 5 ppt
... datagrams.
Encapsulating
header
Authentication
header
Original datagram D(1)
IPSec authentication tunneling datagram D(2)
ESP
authentication
ESP
header
ESP
trailer
Original datagram D(1)
IPSec encapsulating ... generates an IP datagram addressed to an enterprise destination. This
datagram is encapsulated in a PPP frame and may be encrypted. It becomes the users
data in a second IP...
A Professional’s Guide to Data Communication in a TCP/IP World phần 6 potx
... bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 data bytes
23 ... (ESF)
D
C
D
F
D
C
D
F
D
C
D
F
D
C
D
F
D
C
D
F
D
C
D
F
Framing bits
Subchannels
F = Framing
D = Data link
C = CRC/FCS
23 data bytes
23 data bytes
23 dat...
A Professional’s Guide to Data Communication in a TCP/IP World phần 7 pdf
... Voice and Data
Transporting the caller’s voice and the response of the called party between
originating and terminating terminals is straightforward. Setting up and managing
the call requires a significant ... For
instance, in an Ethernet local area network, the letter a, which, in ASCII is
MSB
1100001
LSB
will be read into the data stream as
⇐1000011
In a Token Ring local area...
A Professional’s Guide to Data Communication in a TCP/IP World phần 8 ppt
... Frame
HEADER
PREAMBLE (8 bytes): 0×AA-AA-AA-AA-AA-AA-AA-AB
DESTINATION ADDRESS (6 bytes): If address is unicast, contains the hardware
address of a specific station. If address is multicast, carries ... standard
PAYLOAD: IP Datagram
IEEE 80 2.5 TRAILER: standard
B.4.2 Tag for IEEE 80 2.3 (Ethernet) Frame Encapsulating an IP Datagram
IEEE 80 2.3 MAC HEADER: standard
IEEE 80 2.2 LLC HEAD...
A Professional’s Guide to Data Communication in a TCP/IP World phần 9 doc
... The act of sharing data among devices. The act of transfer
-
ring data among data processing machines over communication links under the
control of communication protocol(s).
Datagram A protocol ... follows
as a Token Ring MAC management frame or a Token Ring data frame. The address
fields contain the hardware addresses of the destination and source.
IEEE 80 2.5 LAN Token R...
A Professional’s Guide to Data Communication in a TCP/IP World phần 10 ppt
... datagram.
Server A device that stores data, organizes and maintains databases, and delivers
copies of data files to clients on demand. A process that stores and distributes data.
Service access point A port ... observing traffic flow, the switch maps
VLANs to ports to ensure an up -to- date database.
Protocol data unit Data exchanged between peer layers in a protocol...
artech house a professionals guide to data communication in a tcp ip world 2004 phần 1 pps
... 2004
004.6'2—dc22
200405 382 6
British Library Cataloguing in Publication Data
Carne, E. Bryan (Edward Bryan), 19 28
A professional’s guide to data communication in a TCP/IP world. —(Artech House
telecommunications ... the writing of this book.
xv
TLFeBOOK
Library of Congress Cataloging -in- Publication Data
Carne, E. Bryan, 19 28
A professional’s guide to...
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