A Professional’s Guide to Data Communication in a TCP/IP World phần 10 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 fram...
A Professional’s Guide to Data Communication in a TCP/IP World phần 3 pptx
... escape character within the IP datagram payload shall not inter-
rupt transmission, PPP employs character stuffing to change the meaning of the
offending character:
•
In the IP datagram, a character ... transmitted data stream
⇐01111 1100 10111 1101 11 1101 0111 1101 0 1101 111 110
At the receiver, the zeros after five ones are removed to leave the original data
stream.
4.1.2.3 S...
A Professional’s Guide to Data Communication in a TCP/IP World phần 4 ppsx
... delivered to the Internet layer at
72 Wide Area Networks
ATM
adaptation
layer
ATM layer
Physical
layer
AAL Convergence sublayer
AAL Segmentation and
reassembly sublayerAAL
IP datagram
48 byte ... 1
protocol
stack
System 2
protocol
stack
Application
Transport
Internet
Data link
sub-layer
Physical
sub-layer
Internet
Data link
sub-layer
Physical
sub-layer
Data link
sub-layer
Physical
sub...
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
... 0 0101 101
s 100 10011 S 1101 0011 ACK 0 0101 110
t 100 1 0100 T 1101 0100 NAK 0011 1101
u 100 1 0101 U 1101 0101 DLE 00 0100 00
v 100 10 110 V 1101 0 110 ETB 0 0100 110
w 100 10111 W 1101 0111
x 100 1100 0 X 1101 1000
y 100 1100 1 ... 0 1101 00
f 1100 110 F 100 0 110 5 0 1101 01
g 1100 111 G 100 0111 6 0 1101 10
h 1101 000 H 100 1000 7 0 1101 11
i 1101 001 I 100 1001 8 01 1...
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 ... Ethernet Frame
IEEE 802.3 MAC HEADER
PREAMBLE (7 bytes): 0×AA-AA-AA-AA-AA-AA-AA
START DELIMITER (1 byte): 0AB
DESTINATION ADDRESS (2 or 6 bytes): If address is unicast, contains
the hardware...
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 802.5 LAN Token Rin...
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
2004053826
British Library Cataloguing in Publication Data
Carne, E. Bryan (Edward Bryan), 1928–
A professional’s guide to data communication in a TCP/IP world. —(Artech House
telecommunications library)
1. ... an acronym for Internet Protocol; its major purpose is to make origina-
tion and destination addresses available to guide data acr...
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