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<p>I tried running on the new version of simh - git commit id:
25b9fc22, but there was no noticeable difference.<br>
</p>
<p>I mentioned two simulators for completeness of discussion but that's not typical. Typically I only run one at a time. When I do run two, I use a unique MAC
address for the VAX simulator so that I can run both at the same
time without having duplicate MACs. <br>
</p>
<p>For essentially all my testing I've been focusing on the
PDP11 simulator and the VAX simulator isn't running. The ping test
shown in my initial email is from the simulated PDP11
(<a href="http://192.168.1.4/24" target="_blank">192.168.1.4/24</a>) running on the Linux host (<a href="http://192.168.1.2/24" target="_blank">192.168.1.2/24</a>) to the
cable router (<a href="http://192.168.1.1/24" target="_blank">192.168.1.1/24</a>). The cable router is the default
route for both the simulated PDP11 and the Linux host. As I
mentioned before, the PDP11 is attached to a dedicated NIC and
that NIC is up but doesn't have an IP address assigned.</p>
<p>My instinct is that the problem is with the Linux host and not
the simulator since this was working at one time (before I
upgraded the Linux OS). I'm wondering if I need to mess with the
routing table or arp table in the Linux host.<br>
</p>
<br>
<blockquote type="cite">
<pre>Message: 2
Date: Tue, 23 Aug 2016 19:16:02 +0200
From: Johnny Billquist <a href="mailto:bqt@softjar.se" target="_blank"><bqt@softjar.se></a>
To: <a href="mailto:simh@trailing-edge.com" target="_blank">simh@trailing-edge.com</a>
Subject: Re: [Simh] Packet Loss
Message-ID: <a href="mailto:3e60a2ea-f7c7-49ca-1e60-d8350cf47fde@softjar.se" target="_blank"><3e60a2ea-f7c7-49ca-1e60-<wbr>d8350cf47fde@softjar.se></a>
Content-Type: text/plain; charset=utf-8; format=flowed
"Between simulators" ...?
So you are running two simulators, and if I understand all of your text
correctly, you have the same MAC address on both of them?
In that case, I would indeed expect for each one, to on average only get
a 50% success rate on ping packets.
Johnny
------------------------------
Message: 3
Date: Tue, 23 Aug 2016 12:28:44 -0700
From: Mark Pizzolato <a href="mailto:Mark@infocomm.com" target="_blank"><Mark@infocomm.com></a>
To: David Coolbear <a href="mailto:david@thecoolbears.org" target="_blank"><david@thecoolbears.org></a>, <a href="mailto:simh@trailing-edge.com" target="_blank">"simh@trailing-edge.com"</a>
<a href="mailto:simh@trailing-edge.com" target="_blank"><simh@trailing-edge.com></a>
Subject: Re: [Simh] Packet Loss
Message-ID:
<a href="mailto:03006E3FC39B5A48AB9DBCCC101090A82E030F1B73@REDROOF2.alohasunset.com" target="_blank"><<wbr>03006E3FC39B5A48AB9DBCCC101090<wbr>A82E030F1B73@REDROOF2.<wbr>alohasunset.com></a>
Content-Type: text/plain; charset="utf-8"
Hi David,
First I would suggest that you run the latest code which has significantly improved networking.
The latest is available from <a href="https://github.com/simh/simh/archive/master.zip" target="_blank">https://github.com/simh/simh/<wbr>archive/master.zip</a>
It is not clear from the below description, but from what Johnny read ‘in between
the lines’ you have both the VAX and PDP11 simulators configured with the same
MAC address. This would indeed be an error on your part (and the latest code
would tell you that).
Meanwhile, once unique MAC addresses are configured for each simulator (which
would happen automatically if you didn’t explicitly have a “SET XQ MAC=…”
command using the latest code), then your dedicated to simh NIC model should
work well.
If it doesn’t, please create an issue at <a href="https://github.com/simh/simh/issues" target="_blank">https://github.com/simh/simh/<wbr>issues</a> and
we can explore the details further.
Good Luck.
- Mark
</pre>
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