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TCP Socket - Maximum Segment Size (TCP_MAXSEGSZ) issue

Pratheep k

Greetings,

Intro: I am developing a TCP Server (TCP Passive Open) using LPC2364 (ARM7TDMI).  I need to transmit/ receive approximately 35 Kb of data through an active TCP connection.  As per document references, the  TCP_MAXSEGSZ macro defines the maximum size of the packet transmitted in a single transaction.  The possible range that can be defined is between 536 to 1460 bytes.

Issue: Even if I configure the maximum value 1460 as the Maximum segment size(TCP_MAXSEGSZ ), I am able to transmit only 554 bytes through an active connection.

I also came across the statement of Keil that the Maximum Segment size will be negotiated during initial handshake of the TCP connection. But the TCP client I am communicating with, is a Linux based system which has a minimum value of 4096 as Maximum Segment Size.

How can I solve this issue?

Requirement: I need the Maximum Segment size during transmission to be at least 1024 (1Kb).

Kindly help me out in this regard. Thanks in advance.

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