Announcing TCP/IP for RSX-11M-PLUS

Johnny Billquist bqt at update.uu.se
Sun Nov 8 06:50:28 CST 2015


Argh. For anyone who have downloaded the release I cut yesterday - 
please get the new version (that goes for everyone else as well).

I just discovered and fixed an obscure bug that can crash the system. 
It's something that happens under very specific circumstances, and is 
uncommon, but if you have lots of TCP connections coming and going, 
you'll hit it sooner or later.

As usual, the distribution is available from:
ftp://mim.update.uu.se/bqtcp.dsk
ftp://mim.update.uu.se/bqtcp.tap
ftp://ftp.update.uu.se/pub/pdp11/rsx/tcpip/tcpip.dsk

The documentation is also available through ftp on Mim, or also at
http://mim.update.uu.se/tcpipdoc

	Johnny

On 2015-11-07 17:02, Johnny Billquist wrote:
> Well, about two weeks since my last announcement, but I figured I should
> do another one.
>
> I've cut a new release of TCP/IP for RSX, and I encourage everyone to
> update to this latest release.
>
> A short list of changes since my last release:
>
> Documentation:
> . I've worked some on the documentation, and filled out some parts that
> were previously TBD.
>
> TCP:
> . Performance improvements. In general, I've improved file transfer
> performance by about 20% by tuning when TCP ACK messages as well as
> window updates are sent. On links where packets are dropped from time to
> time, the performance improvements can be significantly higher.
> . Bugfix. Retry counter were incorrectly reset under some circumstances.
> . Bugfix. TCP did not resend an ACK if the same data was received twice.
> . Bugfix. TCP sockets could erronously be left in a closed state with
>     no task. However, looking at the socket, it looked like a task was
>     associated.
>
> FTP:
> . Size calculation for stream type files in RSX mode was done incorrectly.
>
> Applications:
> . I've included a precompiled version of PCL.TSK
>
> As usual, the distribution is available from:
> ftp://mim.update.uu.se/bqtcp.dsk
> ftp://mim.update.uu.se/bqtcp.tap
> ftp://ftp.update.uu.se/pub/pdp11/rsx/tcpip/tcpip.dsk
>
> The documentation is also available through ftp on Mim, or also at
> http://mim.update.uu.se/tcpipdoc
>
> 	Johnny
>


-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol


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