Sorry this is so late - I was waiting to see if my non-network related performance solution was going to solve our problem or if I had to reopen looking at the network. I got several good answers, I wasn't able to investigate all of them because I was looking for a way to disprove someone's theory about our performance problems and in the meantime, I found a way to prove my theory :-) Steve Chapman suggested - Here's an excellent article: http://www.sean.de/Solaris/tune.html Unfortunately, I'd already looked at it before writing; but if you are reading the summary trying to solve your problem, I'd suggest looking there. Kevin Buterbaugh suggested downloading ttcp from playground.sun.com. This is the first place I'll look if this issue comes up again, but I haven't looked at it. He also suggested: As an aside, if you're on fast ethernet, I'd highly recommend going to gigabit before I'd use Sun trunking. Also, if you're running Solaris 8, you can use IP multipathing for NIC redundancy and outbound load balancing. HTH... Chris Smith suggested ntop. Again, I haven't looked at it. Chintu Pandya suggested if you are using Solaris 8, you might want to check out "multipathing" it does a simple load balance on the outgoing packets via multiple interfaces.. I think its better than trunking. For the bandwidth.. you can always use "netstat" and calculate the packets, but I think the easiest and best way is to check is through your network (switch/sniffer etc.. ) [BTW, this is what I was trying to avoid - I hope one of the above solutions automates this... Julie] Al Hopper suggested netstat -s, again I'd already looked at this, but if you're reading the archives and haven't... My Sun SSE suggested (sight unseen) SiteScope from www.freshwater.com I downloaded a trial version and it doesn't do what I need but it was a neat performance monitoring tool and it let me tell people to quit using top and turn it's web display - if you have a lot of people who care about simple performance stats on a system, this would be the ideal tool! Thanks to everyone for their help! Julie -----Original Message----- From: BAUMLER Julie L Sent: Tuesday, January 29, 2002 4:01 PM To: sunmanagers@sunmanagers.org Subject: NIC Performance Monitoring Hello - How would I determine whether or not a NIC is running at or close to its full capacity (ie. It's time to get another NIC and start using Sun Trunking?) Or measure whether or not I need to tune my IP parameters/am getting an improvement from tuning? I've seen a lot of information on benchmarking and tuning performance of the NIC and IP with NFS, using NFS specific commands, but we're not using NFS. Thanks, Julie ------------------------ Julie L Baumler, SCNA Sr Systems Administrator Multnomah County ISD 503-988-3749 x26909 _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Thu Feb 21 19:35:21 2002
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