TCP Socket Limit

[Mike]

Networking LWIP stack limits

The LWIP stack has the following limits defined for each profile Small: MAX TCP Sockets - 5 MAX Listening TCP Connections - 5 MAX UDP Sockets - 4 Medium: MAX TCP Sockets - 16 MAX Listening TCP Connections - 8 MAX UDP Sockets - 8 Large: MAX TCP Sockets - 32 MAX Listening TCP Connections - 12 MAX UDP Sockets - 16 Of the active TCP Sockets only a subset of them can be listening sockets, but the total TCP sockets cannot exceed the profile limit. So for the large profile you can have up…

I don’t know if it was ever documented…