RE: [Vacm-general] Slow EMP handling

[San M. <net...@va...>]

We had done some initial investigating into the cyclades product to see
if this exact thing could be done... basically it appears that the box
is too underpowered to drive all the ports with the EMP state machine..
We noticed that the machine was so underpowered that it was taking a few
seconds for a connection to be acknowledged as closed by the box.. so
the port that was being listened() on was showing a connection *well*
after shutdown() was called on the socket.... not good...

The cyclades box looks to be a good solution for serial console
redirection.. but it just doesn't look like it has the horsepower for
managing the EMP state machine....
-san


-----Original Message-----
From: vac...@li...
[mailto:vac...@li...] On Behalf Of
sa...@va...
Sent: Tuesday, July 24, 2001 10:39 AM
To: Ard van Breemen
Cc: vac...@li...
Subject: Re: [Vacm-general] Slow EMP handling

On Tue, Jul 24, 2001 at 07:31:53PM +0200, Ard van Breemen wrote:
> Is there a way to (runtime) limit the number of threads started, so
that
> I can strace, and see what exactly is going on?
> The build I use is the wakkerma build:
> http://people.debian.org/~wakkerma/vacm
> 
> > The only serial concentrator qualified to work with VACM is a Cisco
36xx
> > with 32 port async cards
> > -san
> Hmmm, the cyclades ts2000 sounds interesting. If we are able to strip
> software that is not needed (like radius and stuff like that), and
> implement some emp daemon, it could nicely handle all those emp ports,
> and serial consoles...
> (http://www.cyclades.com/products/stdalone/ts1_2000.htm)
> But then again, it might all be cyclades proprietery software that
runs
> on linux...
> 

Nope, all of the software that runs on the Cyclades TS1000 (16 port) and
TS2000 (32 port) term servers is open source. The main piece of software
that manages the ports is portslave or pslave. If you are curious the
flash image of exactly what is on them is available for download from
the Cyclades ftp site.
-- 
Steven A. DuChene	sdu...@mi...
Racked Solutions Architect & Program Manager
			lin...@mi...

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