Flute

General Settings

• FEC Schema
• Max Downlink Bitrate (kbps)
• Source UDP Port
• Destination UDP Port
• Max Source Block Length (bytes)
• Encoding Symbol Length (bytes)
• Repair Symbol Number
• Send Delay (ms)

Distribution Options

• Send Delay Distribution
• Maximum Deviation (%mean)
• Second Delay (ms)
• Second Delay Interval (segments)

FEC Schema

Currently support two types of encoding Schemas - None And Raptor.

Tcl Parameter: FluteFecSchema

Max Downlink Bitrate (kbps)

Used to restrict the downlink bitrate for FLUTE protocol.

Range from 1000 to 100000

Default = 1000

Tcl Parameter: FluteMaxBitrate

Source UDP Port

Used by ALC layer to send FLUTE user data.

Range from 0 to 65535

Default = 4000

Tcl Parameter: FluteSourcePort

Destination UDP Port

Used by ALC layer to send FLUTE user data.

Range from 0 to 65535

Default = 4000

Tcl Parameter: FluteDestPort

Max Source Block Length (bytes)

Used by FLUTE protocol to split the files into blocks (from 1k up to 256k).

Range from 1000 to 256000

Default = 12800

Tcl Parameter: FluteBlockLength

Encoding Symbol Length (bytes)

Used by FEC encoding method to limit the encoded packet size.

Range from 100 to 1000

Default = 1000

Tcl Parameter: FluteSymbolLength

Repair Symbol Number

Used by Raptor encoding schema to generate redundant FEC repair symbols (Available only when FEC Schema = Raptor).

For Example: When repair symbol = 5 and Raptor encoding schema needs 10 packets to encode a file block, additional 5 symbols will be generated for file repair thus a total of 15 packets will be sent to eNodeb by FLUTE Protocol.

Range from 1 to 255

Default = 1

Tcl Parameter: FluteRepairSymbol

Send Delay (ms)

Delay time before sending files by FLUTE Protocl. See additional Delay Options under Distribution Options.

Range from 0 to 65535

Default = 0

Tcl Parameter: FluteSendDelay

Send Delay Distribution

Delay time before sending files by FLUTE Protocol. Choose from 3 options.

Options = Fixed (0) = A configurable fixed value (enter value in Send Delay field)

Options = Next Delay (1) = A configurable fixed value (enter value in Send Delay field), with a second configurable fixed value (enter value in Second Delay field) every one out of X segments (enter value in Second Delay Interval (segments))

Options = Uniform (2) = A uniform distribution between a configurable range (enter value in Maximum Deviation (% of mean))

Default = Fixed

Tcl Parameter: FluteDelayDistribute

Maximum Deviation (% of mean)

Available when Send Delay Distribution = Uniform. A uniform distribution between a configurable range (enter value in Maximum Deviation (% of mean))

Range from 0 to 100

Default = 10

Tcl Parameter: FluteDelayDeviation

Second Delay (ms)

Available when Send Delay Distribution = Next Delay.

A configurable fixed value (enter value in Send Delay field), with a second configurable fixed value (enter value in Second Delay field) every one out of X segments (enter value in Second Delay Interval (segments))

Range from 0 to 65535

Default = 10

Tcl Parameter: FluteSecondDelay

Second Delay Interval (segments)

Available when Send Delay Distribution = Next Delay.

A configurable fixed value (enter value in Send Delay field), with a second configurable fixed value (enter value in Second Delay field) every one out of X + 1 segments (enter value in Second Delay Interval (segments))

Range from 0 to 65535

Default = 10

Tcl Parameter: FluteSegmentInterval