Socket tcp/udp limitations


#1

Hello community !
I would like to know if there is a limitation in the number of simultaneous open connections (TCP/IP or UDP) using Legato.
Thanks!


#2

Hello,

It depends on two things as follows:
First dependency: To open the TCP/IP sockets it required file descriptor. The number of file descriptor used in linux is limited by /proc/sys/fs/file-max value.
User can increase the limit by writing the the number in this file (Ex. echo “65535” > /proc/sys/fs/file-max).

Second dependency:
TCP specification states that the number of ports the host can handles is defined by a 16bit number. So ideally the maximum number of TCP/IP connections is 65535.

Thanks,
Pinkesh Shah