Just a hunch, but are all your PC's patched to keep out the slammer type virus'. Slow connections due to high broadcast are symptoms of this. If your limited in net monitoring software, remove pc's from the switch one at a time, to see if problem goes away. -----Original Message----- From: Sullivan, Glenn [mailto:GSullivan@xxxxxxxxxxxxxx] Sent: Friday, November 07, 2003 2:25 PM To: 'windows2000@xxxxxxxxxxxxx' Subject: [windows2000] Re: Need some basic instruction in networking A CSU/DSU takes a T1 frame connection and converts it to a different kind of connection. Sometimes that connection is to a PBX, sometimes it is to an Ethernet jack. Does the CSU/DSU have an RJ45 Ethernet Jack on it? Is the Edge Server a firewall, or is there something between the edge server and CSU/DSU? Just prodding for more information... Have you dropped a Packet Analyzer onto the wire to see what is eating all your bandwidth? Ethereal is a good free one... I guess what I would start with is this: (this is assuming that all traffic passes through the edge server) 1. Disconnect your edge server's outward-facing NIC from whatever it is plugged into, and plug it into a hub. 2. Run a line from that hub to where ever the edge server NORMALLY plugs into. 3. Figure out an IP address that is on the same subnet as the Edge Server's outward-facing NIC 4. Assign that IP address to a spare machine with ethereal on it. 5. Plug the spare machine into the hub from step 1. 6. Start ethereal. 7. Look at the traffic... try to find which protocols are eating the most bandwidth. If I had to guess, it is Kazaa/DirectConnect/Morpheus/someothernapsterreplacement. HTH, Glenn Sullivan, MCSE+I MCDBA David Clark Company Inc. -----Original Message----- From: Rod Falanga [mailto:rfalanga@xxxxxxx] Sent: Friday, November 07, 2003 3:13 PM To: windows2000@xxxxxxxxxxxxx Subject: [windows2000] Need some basic instruction in networking For about 6 weeks now we have been experiencing really horrible connectivity problems. We have a T1 line, but our network speeds to the Internet have been abysmal at best. I have run some tests using DSLReports.com and have found speeds as low as 14 kbps!!! I've contacted Qwest and they have run some tests on our line from our office to the ISP. They have informed me that everything is fine. So, the problem, as I see it, is either here in our building, somewhere (server, router, cables, something), or at the other end. I've tried replacing cables, and have done what I could to replace all of the CAT-5 cables I could fine, but sometimes some cables are connected to things I don't understand. For example, we've got something called a T1 CSU/DSU. I don't have the foggiest idea what that is. And replacing CAT-5 cables on that this just makes us loose our Internet connectivity completely. So, what are things like CSU/DSU? Or, let's put it differently, starting at the ISP who supplies us with T1 access, what "things" are in between that and the NIC card in my edge server? Rod ******************************************************** This Weeks Sponsor Pearl Software Internet Monitoring, Filtering, and Control Solutions Enabling User & Group Level Oversight & Access Policies Fully Functional in a Thick or Thin Client Environment http://www.pearlsw.com ********************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm ******************************************************** This Weeks Sponsor Pearl Software Internet Monitoring, Filtering, and Control Solutions Enabling User & Group Level Oversight & Access Policies Fully Functional in a Thick or Thin Client Environment http://www.pearlsw.com ********************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm ******************************************************** This Weeks Sponsor Pearl Software Internet Monitoring, Filtering, and Control Solutions Enabling User & Group Level Oversight & Access Policies Fully Functional in a Thick or Thin Client Environment http://www.pearlsw.com ********************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm