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From: D Finnigan <dog_cow@macgui.com>
Newsgroups: comp.sys.apple2.programmer
Subject: Re: New discovery with Uthernet II/W5100 buffers
Date: Mon, 25 Jan 2016 16:03:12 -0000 (UTC)
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Oliver Schmidt wrote:
> 
> b) 4/2/1/1 - this gives Contiki/IP65/Marina and tcplib with a single
> socket the maximum memory and makes socket 2 and 3 "secondary" sockets
> for tcplib.
> 
> c) 4/2/x/x - according to my current understanding of the W5100 it is
> generally possible to change the memory configuration while sockets
> are open as long as it doesn't change memory locations for the already
> open sockets. If tests should validate my presumption tcplib could
> allow the user to choose between a maximum of two sockets or three
> sockets for tcplib. In the former case tcplib would configure 4/2/2/0
> and in the latter case tcplib would configure 4/2/1/1.
> 
> What do you think?

Options b and c seem reasonable to me.