Date sent: Wed, 13 Jun 2001 15:02:26 +0100
From: Vitaly Osipov <[EMAIL PROTECTED]>
To: Paul Murphy <[EMAIL PROTECTED]>
Copies to: [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: Has anyone heard of this?
> Probably it's for extranets - linking two network together with
> synchronized IP changes could make sense...
Even then, if there were many hops, wouldn't that make maintaining
the connection through a number of hops rather problematical (or in
this case, problemagical) for tcp?
For mobile computing, the ip address may change frequently as one
moves from zone to zone. I remember reading one journal paper
that discussed the adapations needed to handle the tcp traffic.
There were certainly induced delays every time the ip changed as
the traffic had to be rerouted as either a local router had to forward
the packets onto the new destination or the connection timed out
and the remote computer had to acquire the new address (!) before
restarting the transmission from the point at which the break
occurred.
If this applies to the alledged Invicta device, it would seem like they
could be reducing the efficiency of the host and the network
connection by maybe as much as 20% to 40%.
And of course, for a network server, it would seem like tcp itself
would have to be redesigned in order to maintain the connection.
So, the extranet and VPN possibilities may be accurate.
Eric Johnson
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