key functions of osi network layer
Tài liệu Chapter 5 - OSI Network Layer CCNA Exploration version 4.0 ppt
Ngày tải lên :
22/12/2013, 13:17
... 39
Network Layer Protocols and Internet Protocol (IP)
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• Define the basic role of the Network Layer in data networks
• The protocols of the OSI ...
Transmission Unit (MTU). Part of
the control communication
between the Data Link layer and
the Network layer is the
establishment of a maximum size
for the packet.
Network Layer Fields
Học viện ... 5.1.1 )
Network Layer Fields
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• 8 bits
• Specifies the level of importance that has been
assigned by upper -layer protocol
Routing and Layer...
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Network Layer
Ngày tải lên :
12/09/2012, 15:06
... outgoing link
Network Layer 4-11
Network layer connection and
connection-less service
❒
datagram network provides network- layer
connectionless service
❒
VC network provides network- layer
connection ... “signaling”
Transport layer: TCP, UDP
Link layer
physical layer
Network
layer
Network Layer 4-41
IP addressing: CIDR
CIDR: Classless InterDomain Routing
❍
subnet portion of address of arbitrary length
❍
address ... router
223.1.1.1
223.1.1.2
223.1.1.3
223.1.1.4
223.1.2.9
223.1.2.2
223.1.2.1
223.1.3.2
223.1.3.1
223.1.3.27
network consisting of 3 subnets
subnet
Network Layer 4-5
Two Key Network- Layer Functions
❒
forwarding:
move
packets from router’s
input...
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MOB TME - Other aspects of wireless The layer transport - Bluetooth - Wifi Security
Ngày tải lên :
17/09/2012, 09:13
... of TCP be affected in by the use of wifi connections?
3. What does the use of the mechanism of fast retransmit improve the performances of
TCP in wireless environments in?
4. Another series of ... a
packet of duration of a time interval each one.
b) Represent then the sequence of frequencies used on the successive time
intervals when the master station has a packet of a duration of three ... packet of a
duration of a time interval each one.
c) Represent finally the sequence of frequencies used on the successive time
intervals when the slave station S1 has a packet of duration of five...
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The network layer Addressing and routing
Ngày tải lên :
17/09/2012, 09:13
... 194.12.230.140.
1. Propose a mask of sub -network for the network of company.
194.12.230.0 is a Class C address, the last byte must be used to encode the numbers of
sub -network and the numbers of hosts in each ... Rescue extent of the sub-networks of the department Y
- Beginning and ending addresses
- Mask
- Lease duration
- …
2. IP Mobility
2.1 IP Mobile
1. Let a network be constituted of IP mobile terminals ... on the physic network.
1
The network layer
Addressing and routing
1. Mobility and addressing
1. What is the DHCP protocol used for?
Assign IP addresses and network conguration of automatic way.
2....
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A new approach to semantic and syntactic functions of English adjectives – A contrastive analysis with their Vietnamese equivalents
Ngày tải lên :
10/04/2013, 14:46
... being stupid again.
In short, syntactic functions of English adjectives are ordered clearly as
in the following table:
Kinds of
adjective
Semantic functions of English adjectives
Gradable non- ... opened the letter.
In short, syntactic functions of English adjectives are ordered clearly as
in the following table:
kinds of
adjective
Syntactic functions of English adjectives
attributive Predicative
Pre-
modification
post-
modification
as ... adjectives and their semantic and syntactic functions of English
adjectives.
Chapter III is a study to a new approach to semantic and syntactic
functions of English adjectives.
Chapter IV is to...
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Simulation of Wireless Network Systems
Ngày tải lên :
29/09/2013, 21:20
... This distribution is used to model errors that are a product of effects of a large
number of factors. The product of a large number of positive random variates tends to have
a distribution that ... effect on the quality of the voice/
Wireless Networks362
Figure 13.9 DCF state machine [18]
13
Simulation of Wireless Network
Systems
This chapter deals with simulation of wireless network systems. ... comparing the results of the
Wireless Networks344
allows TBRPF to update the network with a single broadcast for a constant complexity of
Q(V).
While a string topology shows a limitation of TBRPF and...
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Advances in Relationship Marketing Thought and Practice: The Influence of Social Network Theory
Ngày tải lên :
24/10/2013, 20:15
... transferred among actors in
a network
a network
•
There is a flow of resources within the network
There is a flow of resources within the network
Points of Difference:
Points of Difference:
•
SN theorist ... Brands
•
Flow of Communication across subgroups
Flow of Communication across subgroups
•
Diffusion of Innovation
Diffusion of Innovation
•
Likelihood of Activation as a referral source
Likelihood of Activation ...
Thought and Practice: The Influence
of Social Network Theory
of Social Network Theory
Presented at the
Presented at the
Networks and Complex Systems
Networks and Complex Systems
A talk series...
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The Natural Functions of Secondary Metabolites
Ngày tải lên :
26/10/2013, 02:20
... birth of the field of biochemical engineer-
ing. Following on the heels of the antibiotic products was the development
of efficient microbial processes for the manufacture of vitamins (riboflavin,
cyanocobalamine, ... fraction of
the multitude of plant secondary metabolites. Over 10,000 of these low mole-
cular weight compounds are known but the actual numbers are probably in the
The Natural Functions of Secondary ... canker of stone fruit trees and holcus spot
of maize, and is also a broad-spectrum antibiotic against procaryotes and
eucaryotes including Geotrichum candidum [81]. Proof of the role of antibiotics
as...
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Tài liệu Handbook of Neural Network Signal Processing P2 docx
Ngày tải lên :
12/12/2013, 23:15
... function of the unit.
The output layer units often have linear activations. In the remainder of this chapter, linear output
layer activations are assumed. The layers sandwiched between the input layer ... neural network structure will be handy here to model the mixture of Gaussian likelihood
function.
Since the weighted sum of the mixture of Gaussian density functions is still a mixture of a Gaussian
density ... training MSE reached by MLP
networks of each size.
2.3.1.1 MLP Pattern Storage
The pattern storage of a network is the number of randomly chosen input–output pairs the
network can be trained to...
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Tài liệu Handbook of Neural Network Signal Processing P1 ppt
Ngày tải lên :
12/12/2013, 23:15
... be regarded as a special case of an
ensemble network.
1.2.5.2 Mixture of Expert (MoE) Network
In a mixture of expert (MoE) network [13], each individual neural network module will spe-
cialize ... are two basic types
of committee machines: (1) ensemble network and (2) mixture of experts.
1.2.5.1 Ensemble Network
In an ensemble network [9]–[12], individual modular neural networks will be developed ... neural networks, the ability of neural networks to learn from their environments in
supervised as well as unsupervised ways, as well as the universal approximation property of neural
networks...
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Tài liệu Chapter 8 - OSI Physical Layer CCNA Exploration 4.0 pdf
Ngày tải lên :
22/12/2013, 13:17
... upper layers of the networking model. This
framing method can be provided by the Data Link layer, the
Physical layer, or by both.
• Signal patterns can indicate: start of frame, end of frame, ...
Physical layer.
Characteristics & Uses of Network Media
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• The Physical layer is concerned with network media and
signaling. This layer produces ... purpose of Physical layer signaling and
encoding as they are used in networks
• Identify the basic characteristics of copper, fiber and
wireless network media
• Describe common uses of copper,...
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Tài liệu Chapter 4 - OSI Transport Layer CCNA Exploration version 4.0 docx
Ngày tải lên :
22/12/2013, 13:17
... numbers
– FIN: No more data from sender
Transport Layer Role and Services
• Major functions of the transport layer and the role it plays in data
networks
– Tracking the individual communication ... the establishment
of TCP sessions
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Transport Layer Role and Services
• Describe the role of segments in the transport layer
and the two ... Website: www.bkacad.com 25
Transport Layer Role and Services
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• At the Transport layer the three basic operations of reliability are:
– Tracking transmitted...
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Tài liệu Module 8: Concepts of A Network Load Balancing Cluster ppt
Ngày tải lên :
18/01/2014, 05:20
... this configuration, one network adapter
handles the network traffic that is addressed to the server as part of the cluster.
The other network adapter carries all of the network traffic that is ...
numbers.
iv Module 8: Concepts of A Network Load Balancing Cluster
Be able to discuss the filtering algorithm.
Be able to discuss all of the components of the Network Load Balancing
driver. ... explain
the topology of the Network
Load Balancing driver.
Note
10 Module 8: Concepts of A Network Load Balancing Cluster
Applications and Services
Compatible Network Load Balancing...
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Tài liệu The Synchronisation of Telecommunications Network doc
Ngày tải lên :
12/02/2014, 11:20
... Telephone Networks
» SONET and SDH transport networks
» Cellular mobile telecom networks
» Public Switched Telephone Networks
» SONET and SDH transport networks
» Cellular mobile telecom networks
Issue ... between
telecommunication systems : 3
» Inter -network synchronisation
» Inter -network synchronisation
Network
Network
A
A
System
System
data
data
Network
Network
B
B
System
System
atomic clock
atomic ... function (TF)
» TF = A plot of : Amplitude of output jitter (frequency)
Amplitude of input jitter (frequency)
» TF = A plot of : Amplitude of output jitter (frequency)
Amplitude of input jitter (frequency)
-
-
20
20
-
-
10
10
0
0
10
10
0.001f
0.001f
0.01f
0.01f
f
f
peakpeak
f
f
10f
10f
100f
100f
modulation
modulation
frequency
frequency
Gain...
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Tài liệu Báo cáo khoa học: Seeking the determinants of the elusive functions of Sco proteins pptx
Ngày tải lên :
14/02/2014, 18:20
... NJ
(2011) The essential role of the Cu(II) state of Sco in
the maturation of the Cu(A) center of cytochrome oxi-
dase: evidence from H135Met and H135SeM variants of
the Bacillus subtilis Sco. ... variety of possible functions.
Given that the fold of Sco proteins resembles that of
proteins involved in thiol-disulfide redox chemistry, it
is reasonable to assume that the primary role of Sco
proteins ... oxidoreductase function of the CXXXC
motif of human Sco proteins could therefore be impli-
cated not only in the maturation of the Cu
A
site of
Cox2 but also in the maintenance of cellular copper
homeostasis.
The...
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