<!-- MHonArc v2.4.4 -->
<!--X-Subject: Re: [MUD-Dev] Mud hosting services -->
<!--X-From-R13: X Q Znjerapr <pynjNpc.arg> -->
<!--X-Date: Fri, 19 Nov 1999 17:28:31 -0800 -->
<!--X-Message-Id: E11ozKG-0006RK-00#under,eng.cp.net -->
<!--X-Content-Type: text/plain -->
<!--X-Reference: 000001bf32a8$8ddc9000$0201a8c0@granite -->
<!--X-Head-End-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
<head>
<title>MUD-Dev message, Re: [MUD-Dev] Mud hosting services</title>
<!-- meta name="robots" content="noindex,nofollow" -->
<link rev="made" href="mailto:claw#cp,net">
</head>
<body background="/backgrounds/paperback.gif" bgcolor="#ffffff"
text="#000000" link="#0000FF" alink="#FF0000" vlink="#006000">
<font size="+4" color="#804040">
<strong><em>MUD-Dev<br>mailing list archive</em></strong>
</font>
<br>
[ <a href="../">Other Periods</a>
| <a href="../../">Other mailing lists</a>
| <a href="/search.php3">Search</a>
]
<br clear=all><hr>
<!--X-Body-Begin-->
<!--X-User-Header-->
<!--X-User-Header-End-->
<!--X-TopPNI-->
Date:
[ <a href="msg00418.html">Previous</a>
| <a href="msg00420.html">Next</a>
]
Thread:
[ <a href="msg00410.html">Previous</a>
| <a href="msg00272.html">Next</a>
]
Index:
[ <A HREF="author.html#00419">Author</A>
| <A HREF="#00419">Date</A>
| <A HREF="thread.html#00419">Thread</A>
]
<!--X-TopPNI-End-->
<!--X-MsgBody-->
<!--X-Subject-Header-Begin-->
<H1>Re: [MUD-Dev] Mud hosting services</H1>
<HR>
<!--X-Subject-Header-End-->
<!--X-Head-of-Message-->
<UL>
<LI><em>To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Subject</em>: Re: [MUD-Dev] Mud hosting services </LI>
<LI><em>From</em>: J C Lawrence <<A HREF="mailto:claw#cp,net">claw#cp,net</A>></LI>
<LI><em>Date</em>: Fri, 19 Nov 1999 17:28:28 -0800</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Sender</em>: <A HREF="mailto:mud-dev-admin#kanga,nu">mud-dev-admin#kanga,nu</A></LI>
</UL>
<!--X-Head-of-Message-End-->
<!--X-Head-Body-Sep-Begin-->
<HR>
<!--X-Head-Body-Sep-End-->
<!--X-Body-of-Message-->
<PRE>
On Sat, 20 Nov 1999 05:10:09 +1300
Ian Macintosh <iman#issystems,co.nz> wrote:
>> J C Lawrence wrote: Sent: Friday, 19 November 1999 11:20
>>
>> There's been some discussion on the list previously of
>> establishing fault tolerant protocols for server/client
>> communications where both sides specifically knew what data they
>> had to have at any point (or send thru and have confirmed
>> receipt), and what they could continue acceptably without.
>>
>> The above however raises another possibility: The transmitter
>> (can be client or server) monitors bandwidth conditions to the
>> receiver, and tailors both its frame rate and the data content of
>> the streams to suit. Thus, transposing this into a video stream
>> analogy, players on fast connections would get get high frame
>> rates, players on slow connections would get lower frame rates,
>> and, and this is the clever bit, everybody would always receive
>> all the data their end needed for logical correctness without
>> that data (often) having to compete for bandwidth with other
>> lower priority data streams..
> Sadly, the only system that supports that currently is Microsoft's
> DirectX (to my knowledge).
That's hardly a surprise.
> It is UDP based, and you can check your outbound buffer size,
> client bandwidth capabilities, send 'urgent front of queue'
> messages, unimportant datagrams, important sequenced or
> unsequenced, etc, etc. VERY good implementation. The sad thing
> is both client and server must be a Win95/98 system at the moment,
> or Win2000 when it hits release date.
We're talking about a couple thousand lines of code here really.
Nothing horrible. An error correction layer atop UDP ala TCP, and
then a series of message abstractions as you describe with some
queue and fairness algorithms.
> The simple way to do it for cross-platform availability would be
> to use two sockets. One TCP, one UDP. Send stuff you can afford
> to loose out via the UDP port, and important stuff via TCP. Very
> simple, but could improve your system performance quite a bit.
Yup. This was the level the last discussion of this area on the
list reached.
> You could probably glean an idea of the recipients bandwidth by
> seeing how long it took to ack data back to you, but that would be
> a bit kludgy.
Some stacks also allow retransmit stats to be extracted.
--
J C Lawrence Internet: claw#kanga,nu
----------(*) Internet: coder#kanga,nu
...Honorary Member of Clan McFud -- Teamer's Avenging Monolith...
_______________________________________________
MUD-Dev maillist - MUD-Dev#kanga,nu
<A HREF="http://www.kanga.nu/lists/listinfo/mud-dev">http://www.kanga.nu/lists/listinfo/mud-dev</A>
</PRE>
<!--X-Body-of-Message-End-->
<!--X-MsgBody-End-->
<!--X-Follow-Ups-->
<HR>
<!--X-Follow-Ups-End-->
<!--X-References-->
<UL><LI><STRONG>References</STRONG>:
<UL>
<LI><STRONG><A NAME="00400" HREF="msg00400.html">RE: [MUD-Dev] Mud hosting services</A></STRONG>
<UL><LI><EM>From:</EM> "Ian Macintosh" <iman#issystems,co.nz></LI></UL></LI>
</UL></LI></UL>
<!--X-References-End-->
<!--X-BotPNI-->
<UL>
<LI>Prev by Date:
<STRONG><A HREF="msg00418.html">Re: [MUD-Dev] Languages for MUD drivers</A></STRONG>
</LI>
<LI>Next by Date:
<STRONG><A HREF="msg00420.html">Re: [MUD-Dev] about MOO</A></STRONG>
</LI>
<LI>Prev by thread:
<STRONG><A HREF="msg00410.html">Re: [MUD-Dev] Mud hosting services</A></STRONG>
</LI>
<LI>Next by thread:
<STRONG><A HREF="msg00272.html">Re: [MUD-Dev] Mud hosting services</A></STRONG>
</LI>
<LI>Index(es):
<UL>
<LI><A HREF="index.html#00419"><STRONG>Date</STRONG></A></LI>
<LI><A HREF="thread.html#00419"><STRONG>Thread</STRONG></A></LI>
</UL>
</LI>
</UL>
<!--X-BotPNI-End-->
<!--X-User-Footer-->
<!--X-User-Footer-End-->
<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>Re: [MUD-Dev] Mud hosting services</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<LI><strong><A NAME="00273" HREF="msg00273.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
Mik Clarke <a href="mailto:mikclrk#attglobal,net">mikclrk#attglobal,net</a>, Tue 16 Nov 1999, 21:19 GMT
<UL>
<LI><strong><A NAME="00383" HREF="msg00383.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
J C Lawrence <a href="mailto:claw#cp,net">claw#cp,net</a>, Thu 18 Nov 1999, 22:19 GMT
<UL>
<LI><strong><A NAME="00400" HREF="msg00400.html">RE: [MUD-Dev] Mud hosting services</A></strong>,
Ian Macintosh <a href="mailto:iman#issystems,co.nz">iman#issystems,co.nz</a>, Fri 19 Nov 1999, 18:27 GMT
<UL>
<LI><strong><A NAME="00410" HREF="msg00410.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
Mik Clarke <a href="mailto:mikclrk#attglobal,net">mikclrk#attglobal,net</a>, Fri 19 Nov 1999, 21:34 GMT
</LI>
<LI><strong><A NAME="00419" HREF="msg00419.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
J C Lawrence <a href="mailto:claw#cp,net">claw#cp,net</a>, Sat 20 Nov 1999, 01:28 GMT
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
</LI>
<LI><strong><A NAME="00272" HREF="msg00272.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
AR Schleicher <a href="mailto:ars#iag,net">ars#iag,net</a>, Tue 16 Nov 1999, 21:19 GMT
<UL>
<LI><strong><A NAME="00274" HREF="msg00274.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
Dundee <a href="mailto:SkeptAck#antisocial,com">SkeptAck#antisocial,com</a>, Tue 16 Nov 1999, 22:31 GMT
<UL>
<LI><strong><A NAME="00363" HREF="msg00363.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
AR Schleicher <a href="mailto:ars#iag,net">ars#iag,net</a>, Thu 18 Nov 1999, 17:00 GMT
<UL>
<LI><strong><A NAME="00371" HREF="msg00371.html">Re: [MUD-Dev] Mud hosting services</A></strong>,
Dundee <a href="mailto:SkeptAck#antisocial,com">SkeptAck#antisocial,com</a>, Thu 18 Nov 1999, 18:23 GMT
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
</LI>
</ul>
</ul>
</LI>
</UL></BLOCKQUOTE>
</ul>
<hr>
<center>
[ <a href="../">Other Periods</a>
| <a href="../../">Other mailing lists</a>
| <a href="/search.php3">Search</a>
]
</center>
<hr>
</body>
</html>