Michael, I administerd a Siemens HighPath 4000 system. My suggestion right off of the top of my head is try one that is not daisy chained. I had a Cisco Power over Eithernet switch, 4 blades in a 3600 Catalyst if I recall correctlly. The Siemens engineer and I had a leanghty discussion about not "Daisy Chaining" them. I do not recall the details right now, but did make the decision not to to avoid as many vairables as possible as company headquarters was on the east coast and me being on the west coast, a more junior engineer, there was a great deal of high leval observation on the roll out and operation.
-----Original Message----- From: Micheal Espinola Jr [mailto:[email protected]] Sent: Sunday, January 25, 2009 12:39 To: NT System Admin Issues Subject: Need help making sense out of odd network performance Hi everyone, I'm at a new job/network where I have started to become aware of some odd-ball performance issues. We have a 3rd-party managed VoIP solution with Cisco Catalyst 2950 switches, for which I have absolutely no access or control over our internal switching and routing equipment - except for our perimeter firewall. For the majority of the desktops, their workstations/laptops are daisy-chained through Polycom IP 501 phones to the switches. A few of us, like myself, use two data ports (one for phone, one for our workstation.) What lead up to this aside, here is the throughput I am seeing ala RoboCopy while copying XP SP3 (316.43 MB) as a test subject: Via direct connection: Speed=131.192 MB/min, in 2:24m (meh) Via phone-chained: Speed=36.764 MB/min, in 8:36m (asolutely horrible) Via D-Link DGS-2205 switch: Speed=451.726, in 0:42m (WTH ?!) I'm currently stymied, and our telco provider isn't able to make heads or tails of the issue. Everything is hard-coded for 100 Mbps / Full-Duplex. Any ideas? TIA! -- ME2 ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
