MAX_SEND_BTU_SIZE

Required? No
Keyword Type Unsigned number
Multiples Allowed? No, only one for each LINK_STATION keyword
   MAX_SEND_BTU_SIZE = (
      @TYPE = UNSIGNEDNUMBERKEYWORD
    )
 

The MAX_SEND_BTU_SIZE parameter specifies the maximum BTU size that can be sent from this link station. This value is used to negotiate the maximum BTU size that can be transmitted between a link station pair.

This parameter is optional.

Note:
  1. If the link is not HPR-capable, this value must be set to a value greater than or equal to 99.
  2. If the link is HPR-capable, this value must be set to a value greater than or equal to 768.
  3. If the Personal Communications TN3270E LU sessions configure using an IBM EEDLC connection over a VPN client, then the TN3270E LU sessions cannot be established. The VPN client adds its security data, resulting in a maximum BTU size that is greater than allowed for IBM EEDLC connection. To solve this problem, user has to edit the configuration file (*.acg) using a text editor and change the value of MAX_SEND_BTU_SIZE & MAX_RCV_BTU_SIZE between 1200 to 1450 under the LINK_STATION section for EEDLC link.

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For a multipath channel (MPC) DLC, MAX_SEND_BTU_SIZE should be specified as 32 768 to allow the DLC to determine the size.