<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">No, VENTI2 isn't requesting anything.<div class=""><br class=""></div><div class="">What you're seeing is that I created a simple TOPOL server for my test node (2020K1) to talk to, and I told that TOPOL to report MIM, 20NH, PYTHON, and VENTI2 as available. So it enters those in its node table and reports what it was told. </div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>paul<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Nov 10, 2021, at 12:06 PM, Thomas DeBellis <<a href="mailto:tommytimesharing@gmail.com" class="">tommytimesharing@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class=""><p class="">So <font size="4" class=""><tt class="">VENTI2::</tt></font> is actually
requesting <font size="4" class=""><tt class="">TOPOL</tt></font>? I don't
remember seeing that in the monitor, but I will double check. It
is possible that the NICE process (<font size="4" class=""><tt class="">NMLT20</tt></font>)
is doing the request. I hope not, since DEC never released the
code for this.<br class="">
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<div class="moz-cite-prefix">On 11/8/21 4:42 PM, Paul Koning wrote:<br class="">
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<pre class="moz-quote-pre" wrap="">On Oct 27, 2021, at 9:32 PM, Thomas DeBellis <a class="moz-txt-link-rfc2396E" href="mailto:tommytimesharing@gmail.com"><tommytimesharing@gmail.com></a> wrote:
TOPOL? Hmm... No, I hadn't heard of that, either. It sounds almost familiar, but I don't know why Tops-20 would be asking for it because it doesn't appear to be serving it, viz:
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<pre class="moz-quote-pre" wrap="">FYA, I figured it out, reading the listings I found. It's pretty simple. I now have PyDECnet serving up that data, and TOPS-20 seems to like it:
17:52:40 -- Network topology --
Nodes on-line:
PYTS41
NCP>
17:56:18 -- Network topology --
Nodes on-line:
28NH MIM PYTHON VENTI2
The first message reports the router (as a result of bringing up the KDP link); the second report shows the additional nodes reported by the TOPOL server. For the moment, I have it report (a) nodes known to be reachable from here by the routing tables, and (b) any nodes explicitly listed in a list of names given to the program. MIM and VENTI2 are there because of (b).
Now I need to fix my intercept code. It doesn't currently convert Phase II to IV headers correctly, but that's not hard. The harder part is tracking connection state, which is needed only if TOPS-20 ever sends packets for an active connection without route headers. Intercept allows that -- it only requires route headers on some packets, like Connect Initiate obviously. For that to work, the intercept has to keep track of open connections and their source/dest, so it can supply the correct addresses if it gets a packet with no route header.
paul
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