Talmut That is not a high network load. The Sun Rays use UDP for drawing the display, and tcp for mouse keyboard . If you are using USB peripherals, such as cdrom's, usb stick etc, they will also use TCP packets. If you are doing video, your bandwidth will increase one for one to pass the video as sent. I have 780 Sun Rays on one network on three VLAN's. I run dedicated interconnects to isolate the Sun Ray's from the WAN traffic. Run the utcapture command (/opt/SUNWut/sbin/utcapture) and you can see what your Sun Ray's are doing on the network. Our network team also complained when we first introduced Sun Ray's 6 years ago. I simply explained how the Sun Rays communicated, and now we all get along.
Darrel, I'm curious what simple video is. They are almost as many types of video as there are ice cream flavors. I would make a couple of recommendations for the best performance on Video. First use a dedicated interconnect just for the Sun Rays, and make sure you are using a high quality switch. I see that you are using Sun Ray 1's. Can you switch solely to Sun Ray 2's since they have a faster processor etc? DaveP -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Darrel Hankerson Sent: Wednesday, March 07, 2007 6:53 AM To: SunRay-Users mailing list Subject: Re: [SunRay-Users] Massive network traffic "Talman, Knut" writes: we have a site running SRSS 3.1.1 on RHEL 4.4 on a Sun X2200 M2. Currently there are 12 Sunray 2 connected to the server. The colleagues working on it are quite happy with it. Not so our network administrator. He is complaining that the sunray server generates massive UDP traffic ranging from 3Mbit/sec up to 16MBit/sec. I know that server and client are communicating via UDP for input events and rendering commands but that much traffic for just 12 clients? We have a somewhat-related problem, although volume is not the issue. Sun Ray 1 has 20% packet loss on simple video. If we connect via a private network and that eventually routes over the same wire, or if we use Ray 2 clients, then we do not have packet loss. We also have excellent performance if we wire a $50 Netgear Gb/s (or 100 Mb/s or 10 Mb/s) switch directly into the Ray server. Networking blames Sun, and certainly the evidence is that Cisco switches and Ray 1 do not work together. We've tested the Sun recommendations to move everything to 100 Mb/s, but packet loss was unaffected. We have current firmware and a Sun X4200 Ray server running Solaris 10. At 20% packet loss, the Ray 1 is largely unresponsive to keyboard and mouse actions. We can "solve" the problem for some users by wiring through a private network (a "router" with two interfaces). Suggestions? -- Darrel Hankerson _______________________________________________ SunRay-Users mailing list [email protected] http://node1.filibeto.org/mailman/listinfo/sunray-users _______________________________________________ SunRay-Users mailing list [email protected] http://node1.filibeto.org/mailman/listinfo/sunray-users
