gfpOverhead

gfpOverhead - configure additional GFP parameters

SYNOPSIS

gfpOverhead sub-command options

DESCRIPTION

The gfpOverhead command is used to set several operation parameters.

STANDARD OPTIONS

 

enablePayload

Scrambling true | false

Enables the use of payload scrambling. The payload is scrambled using the x43 + 1 algorithm. (default = true)

enableSingleBitError

Correction true | false

Enables the use of single bit error correction. (default = true)

deltaSyncState

The number of cHEC matches (+1) needed to move the state machine from the hunt state to the sync state.

Option

Value

Usage

gfpSyncStateK1

0

(default) 1

gfpSyncStateK2

1

2

gfpSyncStateK3

2

3

gfpSyncStateK4

3

4

gfpSyncStateK5

4

5

gfpSyncStateK6

5

6

gfpSyncStateK7

6

7

gfpSyncStateK8

7

8

gfpCrc

Read-only. The calculated GFP CRC value.

COMMANDS

The gfpOverhead command is invoked with the following sub-commands. If no sub-command is specified, returns a list of all sub-commands available.

gfpOverhead cget option

Returns the current value of the configuration option gfpOverhead by option. Option may have any of the values accepted by the gfpOverhead command, subject to the setting of the enableValidStats option.

gfpOverhead config option value

Modify the configuration options of the time server. If no option is specified, returns a list describing all of the available options (see STANDARD OPTIONS) for gfpOverhead.

gfpOverhead get chasID cardID portID [circuitID]

Gets the current preamble configuration of the circuit circuitID on port portID, on card cardID, on chassis chasID. Call this command before calling gfpOverhead cget option to get the value of the configuration option. If circuitID = 0, gets information for the port; if circuitID not 0, gets information for the circuit.

gfpOverhead set chasID cardID portID circuitID

Sets the preamble configuration of the circuit circuitID on port portID, on card cardID, on chassis chasID by reading the configuration option values set by the gfpOverhead config option value command. If circuitID = 0, gets information for the port; if circuitID not 0, gets information for the circuit.

gfpOverhead setDefault

Sets to IxTclHal default values for all configuration options.

EXAMPLES

See examples under gfp.

SEE ALSO

sonet, gfp.