Computer Networking A Top-Down Approach Featuring the Internet phần 3 doc
Computer Networking A Top-Down Approach Featuring the Internet phần 3 doc
... is almost identical to TCPServer.java. As
with TCPServer.java, we import the java.io and java.net packages. In addition to these two packages
we also import the java.util package, which contains ... of the data. These retransmissions are completely transparent to the application programs.
The DNS lookup is also transparent to the application programs.
To test the program pair...
Computer Networking A Top-Down Approach Featuring the Internet phần 8 docx
... phone application. The UDP segment is encapsulated in an IP datagram, and the IP
datagram makes it way through the network towards the receiver. As the datagram wanders through the network, it passes ... gatekeeper are all attached to the same LAN, and the H .32 3 zone is the LAN itself. If a
zone has a gatekeeper, then all H .32 3 terminals in the zone are required...
Computer Networking A Top-Down Approach Featuring the Internet phần 10 doc
... filters with application gateways.
Application gateways look beyond the IP/TCP/UDP headers and actually make policy decisions based
on application data. An application gateway is an application-specific ...
encapsulated as a standard IP datagram. For the protocol field in the IP header, the value 51 is used to
indicate that the datagram includes an AH header. When the destin...
Computer Networking: A Top Down Approach Featuring the Internet - Chapter 3 Transport Layer ppt
...
available:
❍
delay guarantees
❍
bandwidth guarantees
application
transport
network
data link
physical
application
transport
network
data link
physical
network
data link
physical
network
data ... layer
❒
more than one transport
protocol available to
apps
❍
Internet: TCP and UDP
application
transport
network
data link
physical
application
transport
network
data link
physical
network
data l...
Computer Networking A Top-Down Approach Featuring the Internet phần 1 pptx
... by paying more a state of affairs that some (particularly Americans!) find
odd. We'll take a look at state-of -the art Internet research that is aimed at changing this situation in Chapter ... n%2 0Approach% 2 0Featuring% 2 0the% 2 0Internet/ preface.htm (1 of 4)20/11/2004 15:51 :35
Instructor Overheads: Computer Networking: A Top Down Approach Featuring the Internet...
Computer Networking A Top-Down Approach Featuring the Internet phần 2 ppsx
... proach%2 0Featuring% 2 0the% 2 0Internet/ protocol_stacks.htm (6 of 7)20/11/2004 15:51:44
ATMover
(AAL), the ATM Layer, and the ATM Physical Layer:
ATM Adaptation Layer (AAL)
ATM Layer
ATM Physical Layer
... i.e., no data loss.
In particular, a loss of file data, or data in a financial transaction, can have devastating
consequences (in the latter case, for either the bank or...
Computer Networking A Top-Down Approach Featuring the Internet phần 4 ppt
... msec. Assuming for simplicity that ACK packets are the same size as data
packets and that the receiver can begin sending an ACK packet as soon as the last bit of a data packet is received, the last ... integrity of the data in the datagrams. With IP service, datagrams can overflow router buffers and never
reach their destination, datagrams can arrive out of order, and bits in...
Computer Networking A Top-Down Approach Featuring the Internet phần 5 potx
... to "fragment" the data in the IP datagram among two or more smaller IP datagrams, and then send these smaller
datagrams over the outgoing link. Each of these smaller datagrams is referred ... data, whereas packets for many wide-area links can carry no more than 576 bytes. The maximum amount of data that a
link-layer packet can carry is called the MTU (maximum transfer...
Computer Networking A Top-Down Approach Featuring the Internet phần 6 pot
... unaware that the unicast datagram itself contains a multicast datagram. When the unicast
datagram arrives at B, B then extracts the multicast datagram. B may then forward the multicast
datagram on ... each of the receivers. What are the drawbacks of this approach compared to the
approach that provides native multicast support at the network layer? What are the advant...
Computer Networking A Top-Down Approach Featuring the Internet phần 7 pps
... make Ethernet simple and cheap. But it also means that the stream of datagrams passed to the
network layer can have gaps.
If there are gaps due to discarded Ethernet frames, does the application-layer ... router. ATM in the entry router indexes an ATM table to determine the VCI for the VC that
leads to the ATM destination address. AAL5 then creates ATM cells out of the IP d...
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