2508077 - Understanding TCP/IP Packet Size as it relates to DirectConnect (NetBufSize)

This article explains the negotiation of TCP/IP packet size between the client application and DirectConnect (DCMFC & ECDAODBC) server, with emphasis on the NetBufSize configuration property.

Here are the different types of DirectConnect servers that make use of the NetBufSize configuration property

• MainframeConnect DirectConnect z/OS DB2 Option Transaction Router Service (DCMFC-TRS)
• MainframeConnect DirectConnect z/OS DB2 Option DB2 Access Service (DC-MFC DB2AS)
• EnterpriseConnect Data Access ODBC Option (ECDODBC)

Here are the OS platforms each DirectConnect gateway server can run on

• Windows 32 (runs on Winx64)
• Linux 32 (Linux x86_64)
• IBM AIX 32-bit
• Solaris 32-bit
• HP Itanium 64-bit

       Note: All platforms but HP Itanium are 32-bit binaries, running on 64-bit Operating Systems

MainframeConnect
MFC
DirectConnect
DC
MFCDC
EnterpriseConnect Data Access
ECDA
ECDAODBC
TCPIP
PACKET
NetBufSize , KBA , BC-SYB-MFC , Mainframe Connect (MFC) , BC-SYB-ECD , Enterprise Connect (ECDA) , How To