A Professional’s Guide to Data Communication in a TCP/IP World phần 5 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
... shows a token and the fields in a frame containing an IP datagram. The
frame consists of an IEEE 802 .5 header, an IEEE 802.2 LLC header, an IEEE 802.3
SNAP header, the payload (IP datagram), and an ... IP datagram contains the sequence 0×7D–5E, it is replaced by
0×7D–5D–5E.
In addition, a combination of character stuffing and bit stuffing is used to pre
-
vent characters in an...
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 cells
53 ... datagram
Packet
X. 25- 3
Data 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
Hea...
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
... Unfortu
-
152 The Convergence of 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 ... 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...
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 ... Code indicating upper layer protocol contained in frame.
For IP datagram set to 0×08-00; for ARP set to 0×08-06.
PAYLOAD
IP DATAGRAM (46 to 1 ,50 0 bytes): Contains Internet layer he...
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 R...
A Professional’s Guide to Data Communication in a TCP/IP World phần 10 ppt
... beginning and
ending of each IP 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 ... Performance Engineering, Robert G. Cole and
Ravi Ramaswamy
Winning Telco Customers Using Marketing Databases, Rob Mattison
WLANs and WPANs towards 4G Wireless, Ramjee Prasad and...
artech house a professionals guide to data communication in a tcp ip world 2004 phần 1 pps
... purpose is to make origina-
tion and destination addresses available to guide data across networks. IP
includes several management protocols that are essential to the operation of
the Internet.
Together, ... Point -to- Point Protocol (PPP) Frame 189
B.3.2 X. 25 Data Frame 189
B.3.3 ATM Cell Structure 190
B.3.4 AAL5 Frame Containing IP Datagram 190
B.3 .5 Frame Relay Frame with 2...