Speed

Reference:        Insert Transfer Modifiers 

                        Script Editor Program
                        Alphabetical Command List

                        Topical Command List 

Open Syntax Window

The Speed command allows you to control the resources used by individual transfers.  Positive and negative speeds are not symmetrical, and have different effects on Beyond FTP and FTP transfers. 

Positive settings (preceding the numeric value with a plus sign) apply only to Beyond FTP transfers.  The setting controls the amount of information that is transferred before an acknowledgement is required.  A value of 1 requires every message to be acknowledged.  A value of 5 requires an acknowledgement for every 5 messages, increasing of the amount of information on the network.  Beyond FTP messages are comparatively small and create little interference with VOIP and other time critical applications.  However, this value applies to each transfer, so care must be exercised when MaxPerServer and MaxServers result in a large number of simultaneous transfers.

A negative setting applies to both Beyond FTP and FTP transfers.  A delay of 1/10^th of a second is inserted between messages for each increment (e.g. a setting of -5 inserts a ½ second delay.)  This can greatly reduce the bandwidth devoted to transfers.

These commands obey the scoping rules for modifiers, remaining in effect until another Speed command is encountered or the script exits the block in which the command occurs.