nfd::fw::RetxSuppressionExponential Class Reference

A retransmission suppression decision algorithm that suppresses retransmissions using exponential backoff. More...

#include <daemon/fw/retx-suppression-exponential.hpp>

Public Types
using	Duration = time::milliseconds
	Time granularity. More...

Public Member Functions
	RetxSuppressionExponential (Duration initialInterval=DEFAULT_INITIAL_INTERVAL, Duration maxInterval=DEFAULT_MAX_INTERVAL, float multiplier=DEFAULT_MULTIPLIER)
RetxSuppressionResult	decidePerPitEntry (pit::Entry &pitEntry)
	Determines whether Interest is a retransmission per pit entry and if so, whether it shall be forwarded or suppressed. More...
RetxSuppressionResult	decidePerUpstream (pit::Entry &pitEntry, Face &outFace)
	Determines whether Interest is a retransmission per upstream and if so, whether it shall be forwarded or suppressed. More...
void	incrementIntervalForOutRecord (pit::OutRecord &outRecord)
	Increment the suppression interval for out record. More...

Static Public Member Functions
static std::unique_ptr< RetxSuppressionExponential >	construct (const StrategyParameters &params)

Static Public Attributes
static constexpr Duration	DEFAULT_INITIAL_INTERVAL = 10_ms
static constexpr Duration	DEFAULT_MAX_INTERVAL = 250_ms
static constexpr float	DEFAULT_MULTIPLIER = 2.0f

Friends
std::ostream &	operator<< (std::ostream &os, const RetxSuppressionExponential &retxSupp)

Detailed Description

A retransmission suppression decision algorithm that suppresses retransmissions using exponential backoff.

The i-th retransmission will be suppressed if the last transmission (out-record) occurred within MIN(initialInterval * multiplier^(i-1), maxInterval).

Definition at line 41 of file retx-suppression-exponential.hpp.

Member Typedef Documentation

Duration

using nfd::fw::RetxSuppressionExponential::Duration = time::milliseconds

Time granularity.

Definition at line 47 of file retx-suppression-exponential.hpp.

Constructor & Destructor Documentation

RetxSuppressionExponential()

nfd::fw::RetxSuppressionExponential::RetxSuppressionExponential ( Duration  initialInterval = DEFAULT_INITIAL_INTERVAL, Duration  maxInterval = DEFAULT_MAX_INTERVAL, float  multiplier = DEFAULT_MULTIPLIER  )

explicit

Definition at line 55 of file retx-suppression-exponential.cpp.

Member Function Documentation

construct()

std::unique_ptr< RetxSuppressionExponential > nfd::fw::RetxSuppressionExponential::construct ( const StrategyParameters &  params )

static

Definition at line 131 of file retx-suppression-exponential.cpp.

decidePerPitEntry()

RetxSuppressionResult nfd::fw::RetxSuppressionExponential::decidePerPitEntry

(

pit::Entry &

pitEntry

)

Determines whether Interest is a retransmission per pit entry and if so, whether it shall be forwarded or suppressed.

Definition at line 74 of file retx-suppression-exponential.cpp.

decidePerUpstream()

RetxSuppressionResult nfd::fw::RetxSuppressionExponential::decidePerUpstream	(	pit::Entry &	pitEntry,
		Face &	outFace
	)

Determines whether Interest is a retransmission per upstream and if so, whether it shall be forwarded or suppressed.

Definition at line 99 of file retx-suppression-exponential.cpp.

incrementIntervalForOutRecord()

void nfd::fw::RetxSuppressionExponential::incrementIntervalForOutRecord

(

pit::OutRecord &

outRecord

)

Increment the suppression interval for out record.

Definition at line 123 of file retx-suppression-exponential.cpp.

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, const RetxSuppressionExponential &  retxSupp  )

friend

Definition at line 75 of file retx-suppression-exponential.hpp.

Member Data Documentation

DEFAULT_INITIAL_INTERVAL

constexpr Duration nfd::fw::RetxSuppressionExponential::DEFAULT_INITIAL_INTERVAL = 10_ms

staticconstexpr

Definition at line 84 of file retx-suppression-exponential.hpp.

DEFAULT_MAX_INTERVAL

constexpr Duration nfd::fw::RetxSuppressionExponential::DEFAULT_MAX_INTERVAL = 250_ms

staticconstexpr

Definition at line 85 of file retx-suppression-exponential.hpp.

DEFAULT_MULTIPLIER

constexpr float nfd::fw::RetxSuppressionExponential::DEFAULT_MULTIPLIER = 2.0f

staticconstexpr

Definition at line 86 of file retx-suppression-exponential.hpp.