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<H1>[Nel] A small document for your consumption</H1>
<B>Thierry Mallard</B>
<A HREF="mailto:thierry%40mallard.com"
TITLE="[Nel] A small document for your consumption">thierry@mallard.com</A><BR>
<I>Tue, 17 Apr 2001 08:33:31 +0200</I>
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<PRE>On Fri, Apr 13, 2001 at 11:34:53AM +0200, Vincent Archer wrote:
><i> Steps
</I>><i> -----
</I>><i> [...]
</I>><i> 5: The LS sends a notification to the selected WS of the client's connection
</I>><i> desires. It generates and submits a single-use cookie to validate the
</I>><i> incoming connection.
</I>
The LS <--> WS connection should be studied, perhaps ?
(if it wasn't intended in this document, then let's see that later.. ;-) )
[ *err.. ok i just read the end on the original mail, just forget it* ]
><i> 6: The WS selects a FES to accept the client connexion, and submits the cookie
</I>><i> to the FES.
</I>><i>
</I>><i> 7: The FES acknowledges its capacity to accept the client to the WS.
</I>
So the WS is (or can be?) a load-balancer to all the FES in a given world ?
-- the balancing being done at network level, not process level --
><i> 8: The WS acknowledges its capacity to accept the client to the LS, and
</I>><i> indicates the IP/port of the selected FES.
</I>><i>
</I>><i> 9: The LS acknowledges the login request to the client, and indicates the
</I>><i> IP/port of the selected FES.
</I>><i>
</I>><i> 10: The client disconnects from the LS.
</I>><i>
</I>><i> 11: The client initiates a connection to the indicated FES.
</I>><i>
</I>><i> 12: The client sends the submitted cookie to the FES.
</I>><i>
</I>><i> 13: The FES validates and acknowledges the cookie.
</I>
IMHO, as said in the other mail, the client should then disconnect from the
LS ; not before. The downside I see in this case would be the extended time of
connection (steps 11 et 13), which will lead to more network load. I don't see
how important that would be.
><i> Side notes
</I>><i> ----------
</I>><i>
</I>><i> Whenever a world starts, the WS establishes a permanent link with the LS,
</I>><i> using an encrypted link (it is assumed that the LS and WS are located on two
</I>><i> physically and probably geographically distinct networks). A 'SHARD' message
</I>><i> serves as authentification, and the WS then updates the LS with its state,
</I>><i> name and IP address. The WS may have a list of valid IP/port address for WS
</I>><i> to avoid the occasional pirate server registration.
</I>
ok, so i should have read the whole document before arguing ;-))
Hope this helps..
--
Thierry Mallard | <A HREF="http://vawis.net">http://vawis.net</A>
GnuPG key on wwwkeys.pgp.net | <A HREF="http://erlang-fr.org">http://erlang-fr.org</A> (new)
key 0xA3D021CB | <A HREF="http://worldforge.org">http://worldforge.org</A>
</pre>
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