[SunRay-Users] EXTERNAL: Sun Desktop Access Client (SDAC / soft client) poor performance
Devin.Nate at cloudwerxdata.com
Tue Mar 2 00:06:02 EET 2010
I completely agree... the problem is, the DTU and SDAC clients are on identical networks... in fact, I've taken the cable out of a perfect DTU and put it into a PC. I was thinking perhaps QoS or something tagging the udp packages.
The PCs have Intel nic's. I'm tracking down totally different architectures. Our core is all Cisco networking gear. We're looking to setup a host on the same LAN directly connected to the core, that said we had some hosts in the datacenter getting latency of 500.000, gig connected but on a different subnet.
All that aside, the Sun DTU's work perfect on the same network. We're going through everything with a fine tooth comb, but I'm not optimistic.
From: sunray-users-bounces at filibeto.org [mailto:sunray-users-bounces at filibeto.org] On Behalf Of Lars Tunkrans
Sent: Monday, March 01, 2010 2:36 PM
To: SunRay-Users mailing list
Subject: Re: [SunRay-Users] EXTERNAL: Sun Desktop Access Client (SDAC / soft client) poor performance
2010-03-01 20:31, Devin Nate skrev:
> I'm really appreciating the ideas, please keep them coming?
When I experience laggy screen updates on a DTU ist is usually
becase there is
a problem with the network .
As the list can testify:
One returning problem is Low end flaky L2 switches with a
gigabit input from the CORE switch
and 100Mbit link out to the DTU. These L2 switches drops UDP packets
and forces the DTU
to ask for them again . Hence the Laggy screen updates.
Now heres a long shot.....
if you are using mainly the same brand pc , do they all have the
same LAN Card / CHipset ?
There are many kinds of problems with Chinese wierdo combines of
PHY / MAC chipsets.
They come up with new combinations every week just to be able to
produce the motherboard 5 cents
Should you try an Intel Pro1000 GT Desktop adaptor ? I think
This is probably the the most stable ethernet card today, since
3COM stopped making
Did you try to attach the PC directly to core switch yet ?
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