On Wed, 7 Oct 2009, Ivar Janmaat wrote: > I thought I just could replace my 100 Mbit switch with a gigabit switch. > Man was I wrong...... > > Setup: > Gigabit network interface on Server. > Sun Ray Server Software 4.2 ea 2 > Solaris Nevada Build 123 > Sitecom Network Gigabit Switch > Linksys SLM2008 Gigabit Switch > Linksys SRW2008 Gigabit Switch > Sun Ray 270 > > Stress test: > Open Eye of Gnome image viewer on the Sun Ray and click through about 30 > high resolution images > > Situation 1: > SR Server <-------> SR 270 > > This works perfect! > > Situation 2: > SR Server <----> Gigabit switch <-----> SR 270 > > There is packet loss. The build up of the images is hampering and I see > stripes instead of blocks.
Yep, been there, suffered through that! The solution I used was to add this line to /etc/system: set hires_tick = 1 and reboot. The higher resolution clock means that packets are sent more frequently and thus require less buffering in the switch. > Workaround hangs server network interface! > As suggested in earlier e-mails to the list I reduced the server port on > the Linksys SLM2008 from auto-negotiate (1GB) to 100Mb fixed. This > resulted in less striping but to my surprise the servers network > interface died after clicking through about 20 pictures in Eye OG. The > same thing happened when I tried it with the Linksys SRW2008 switch. > The only workable solution I found was on the SRW2008. > It is: Leave the port setting "auto-negotiate" on "enable" but change > the "admin advertisement" from "Max capability" to "100 Full" This will > remove all striping and it does not hang up the network interface on the > server. I never mess with (i.e., disable) the auto-negotiate settings. That way lies bad ju-ju... Just set the hi_res clock in /etc/system and rely on autonegotiation, and it'll be fine. -- Rich Teer, SCSA, SCNA, SCSECA URLs: http://www.rite-group.com/rich http://www.linkedin.com/in/richteer _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
