tcp_mib questions

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Hi,

Looking at the Linux tcp_mib, these fields are not updated (set)
AFAICT:

1. 	unsigned long	TcpRtoAlgorithm;
2. 	unsigned long	TcpRtoMin;
3. 	unsigned long	TcpRtoMax;

What retransmit algorithm does Linux use?  or are there several?
I see comments/references to Van Jacobson's algorithm.
Is that the one used, or a variant of it?

4. 	unsigned long	TcpMaxConn;
If TcpMaxConn is dynamic, it can be set to -1.

5. 	unsigned long	TcpEstabResets;
Just not updated anywhere.  Is there a (historical) reason for this,
or it's just omitted, or not wanted?


Any comments or corrections?

Thanks,
--
~Randy
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