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Concept
Network Latency
Network latency
refers to the
time it takes for data to travel
from its source to its destination across a network, affecting the
speed and performance
of
data transmission
. It is influenced by factors such as
propagation delay
, transmission delay,
processing delay
, and
queuing delay
, and optimizing these can improve overall network efficiency.
Concept
Jitter
Jitter refers to the
variability in time delay
in
packet delivery
over a network, which can severely impact the quality of
real-time communications
like VoIP and
video conferencing
. It is a critical factor in
network performance
and is often mitigated through techniques such as buffering and
Quality of Service
(QoS) settings.
Concept
Packet Queuing
Packet queuing
involves the
temporary storage of data packets
in
network routers
or switches before they are forwarded to their destination. This process is crucial for managing
network congestion
, ensuring efficient
data transmission
, and maintaining
quality of service
(QoS).
Concept
Congestion Control
Congestion control
is a fundamental mechanism in
network communication
that ensures
efficient data transfer
by preventing
network overload
. It dynamically adjusts the rate of
data transmission
based on
current network conditions
to maintain
optimal performance
and prevent
packet loss
.
Concept
Quality Of Service
Quality of Service
(QoS) refers to the
performance level of a service
, emphasizing the ability to provide
predictable and reliable network performance
by
managing bandwidth
, delay, jitter, and
packet loss
. It is crucial in ensuring
optimal user experience
, particularly in
real-time applications
like VoIP and
streaming services
.
Concept
Active Queue Management
Active Queue Management
(AQM) is a
network protocol technique
used to manage congestion by proactively
dropping packets
before a queue becomes full, thus preventing packet loss and
reducing delay
. It aims to improve overall
network performance
and
fairness among users
by dynamically adjusting the queue length based on
current network conditions
.
Concept
Transmission Control Protocol
Transmission Control Protocol
(TCP) is a
core protocol
of the
Internet Protocol Suite
that enables reliable, ordered, and
error-checked delivery of data
between applications running on hosts communicating over an IP network. It ensures that
data packets
are delivered in the same order they are sent, providing a
connection-oriented communication service
that is essential for many
internet applications
like
web browsing
and email.
Concept
Round-trip Time
Round-trip time
(RTT) is the
duration it takes for a signal to travel
from the
source to a destination
and back again, crucial for assessing
network performance
and latency. Understanding RTT is essential for
optimizing data transmission efficiency
, as it directly impacts the speed and
reliability of communication networks
.
Concept
Bandwidth Delay Product
The
Bandwidth Delay Product
(BDP) represents the
maximum amount of data
that can be in transit in a network at any given time, calculated as the product of the
network's bandwidth
and its
round-trip delay time
. It's crucial for optimizing
network performance
, as it helps in determining the
optimal window size
for
data transmission
to ensure
efficient use of the network
without
causing congestion
.
Concept
Flow Control
Flow control
is a critical aspect of
computer networking
and programming that ensures data is transmitted efficiently and without overwhelming the receiving system. It balances the
data flow
between
sender and receiver
, preventing congestion and ensuring
optimal performance
of networks and applications.
Concept
Network Congestion
Network congestion
occurs when a
network node
or link is carrying more data than it can handle, leading to
packet loss
, delay, or
blocking of new connections
.
Efficient congestion management
is crucial to maintain
optimal network performance
and ensure
data flows
smoothly across the
network infrastructure
.
Concept
Queuing Delay
Queuing delay
refers to the time a
data packet
spends
waiting in a queue
before it can be
transmitted over a network
. It is a critical factor in
network performance
, influenced by factors such as
network congestion
, queue management policies, and the
arrival rate of packets
.
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