1.2.1.23.2 TFTP Server Configurations

TFTP Server Specific User Configurations

• Maximum number of Clients:

  • The number of Clients requests will be processed for the TFTP server stack.
  • Default value: 3
  • Symbol TCPIP_TFTPS_CLIENT_NUMBER

• Default file name length:

  • The default length of the file name
  • Default value: 64
  • Symbol TCPIP_TFTPS_FILENAME_LEN

• Root Directory Path:

  • The root of the TFTP server directory
  • The server will have access only to the files beneath this path
  • Default value: none
  • Symbol TCPIP_TFTPS_MOUNT_POINT

• Enable Console Commands:

  • Enable the TFTP TCP/IP Console Commands
  • Default value: false
  • Symbol: TCPIP_TFTPS_CONSOLE_CMD

• TFTP Task Rate (in msec):

  • TFTP task processing rate, in milliseconds.
  • The TFTP module will process a timer event with this rate for maintaining its own queues, processing timeouts, etc.
  • The lower the rate (higher the frequency) the higher the module priority and higher module performance can be obtained
  • The value cannot be lower than the TCPIP_STACK_TICK_RATE.
  • Default value: 60
  • Symbol TCPIP_TFTPS_TASK_TICK_RATE

• Maximum Number of Retransmissions:

  • The number of attempts to retransmit the previous packet before declaring a TIMEOUT error.
  • Default value: 3
  • Symbol TCPIP_TFTPS_RETRANSMIT_COUNT

• Maximum File Size (bytes):

  • The maximum size for a file in bytes to be accepted.
  • Default value: 64000
  • Symbol TCPIP_TFTPS_DEFAULT_FILESIZE

• Maximum Block Size (bytes):

  • The maximum value for the file block size.
  • Even though the RFC allows blocks of up to 65464 bytes, in practice the limit is set to 1468 bytes:
    • the size of an Ethernet MTU minus the headers of TFTP (4 bytes), UDP (8 bytes) and IP (20 bytes)
  • Default value: 512
  • Symbol TCPIP_TFTPS_DEFAULT_BLOCK_SIZE

• Default Retransmission timeout (in sec):

  • This time is used during the TFTP retransmission
  • The server will wait for the client for these many seconds before retransmitting.
  • Value is in seconds
  • Default value: 10
  • Symbol TCPIP_TFTPS_DEFAULT_TIMEOUT

• Command process timeout (in sec):

  • The number of seconds to wait before declaring a TIMEOUT when processing a GET/PUT command
  • Value is in seconds
  • Default value: 10
  • Symbol TCPIP_TFTPS_CMD_PROCESS_TIMEOUT

• Enable User Notification:

  • Allow TFTP Server user notification
  • If enabled, the TCPIP_TFTPS_HandlerRegister/TCPIP_TFTPS_HandlerDeRegister functions exist and can be used
  • Default value: false
  • Symbol TCPIP_TFTPS_USER_NOTIFICATION