netem: Fix up grammatical errors in man page
Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
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@ -56,7 +56,7 @@ NetEm \- Network Emulator
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NetEm is an enhancement of the Linux traffic control facilities
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NetEm is an enhancement of the Linux traffic control facilities
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that allow to add delay, packet loss, duplication and more other
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that allow to add delay, packet loss, duplication and more other
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characteristics to packets outgoing from a selected network
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characteristics to packets outgoing from a selected network
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interface. NetEm is build using the existing Quality Of Service (QOS)
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interface. NetEm is built using the existing Quality Of Service (QOS)
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and Differentiated Services (diffserv) facilities in the Linux
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and Differentiated Services (diffserv) facilities in the Linux
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kernel.
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kernel.
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@ -73,8 +73,8 @@ optional parameters allows to introduce a delay variation and a correlation.
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Delay and jitter values are expressed in ms while correlation is percentage.
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Delay and jitter values are expressed in ms while correlation is percentage.
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.SS distribution
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.SS distribution
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allow the choose the delay distribution. If not specified, the default
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allow the user to choose the delay distribution. If not specified, the default
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distribution is normal. Additional parameters allow to consider situations in
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distribution is Normal. Additional parameters allow to consider situations in
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which network has variable delays depending on traffic flows concurring on the
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which network has variable delays depending on traffic flows concurring on the
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same path, that causes several delay peaks and a tail.
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same path, that causes several delay peaks and a tail.
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@ -85,7 +85,7 @@ is now deprecated due to the noticed bad behavior.
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.SS loss state
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.SS loss state
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adds packet losses according to the 4-state Markov using the transition
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adds packet losses according to the 4-state Markov using the transition
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probabilities as input parameters. The parameters p13 is mandatory and if used
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probabilities as input parameters. The parameter p13 is mandatory and if used
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alone corresponds to the Bernoulli model. The optional parameters allows to
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alone corresponds to the Bernoulli model. The optional parameters allows to
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extend the model to 2-state (p31), 3-state (p23 and p32) and 4-state (p14).
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extend the model to 2-state (p31), 3-state (p23 and p32) and 4-state (p14).
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State 1 corresponds to good reception, State 4 to independent losses, State 3
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State 1 corresponds to good reception, State 4 to independent losses, State 3
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@ -94,7 +94,7 @@ to burst losses and State 2 to good reception within a burst.
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.SS loss gemodel
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.SS loss gemodel
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adds packet losses according to the Gilbert-Elliot loss model or its special
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adds packet losses according to the Gilbert-Elliot loss model or its special
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cases (Gilbert, Simple Gilbert and Bernoulli). To use the Bernoulli model, the
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cases (Gilbert, Simple Gilbert and Bernoulli). To use the Bernoulli model, the
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only needed parameter is p while the the others will be set to the default
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only needed parameter is p while the others will be set to the default
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values r=1-p, 1-h=1 and 1-k=0. The parameters needed for the Simple Gilbert
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values r=1-p, 1-h=1 and 1-k=0. The parameters needed for the Simple Gilbert
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model are two (p and r), while three parameters (p, r, 1-h) are needed for the
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model are two (p and r), while three parameters (p, r, 1-h) are needed for the
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Gilbert model and four (p, r, 1-h and 1-k) are needed for the Gilbert-Elliot
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Gilbert model and four (p, r, 1-h and 1-k) are needed for the Gilbert-Elliot
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@ -103,7 +103,7 @@ the good states, 1-h is the loss probability in the bad state and 1-k is the
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loss probability in the good state.
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loss probability in the good state.
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.SS corrupt
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.SS corrupt
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allows the emulate the random noise introducing an error in a random position
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allows the emulation of random noise introducing an error in a random position
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for a chosen percent of packets. It is also possible to add a correlation
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for a chosen percent of packets. It is also possible to add a correlation
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through the proper parameter.
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through the proper parameter.
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