Skillz'n Magic
Weaksauce
- Joined
- Mar 6, 2008
- Messages
- 114
I'm upgrading my home network and I'm trying to hit as close to 1Gbps as possible. I'm familiar with networking, but this is a little new to me and before I start throwing cash at it I'd like some opinions.
Setup:
Three PC's with onboard gigabit network adapters.
- One supports "jumbo frames" - doesn't specify size
- One supports max 9.5k jumbo frames
- One supports 8000 something size frames
I have a D-Link DGS-2208 switch with jumbo frame support.
Also every room is wired with CAT5e cable to a patch pannel in my network closet.
Testing:
iperf was used for all tests. I also used a 150MB file to do real-world test verification.
Test 1 - I connected the PC's to the switch without enabling jumbo frame support on the NICs and I got about 190Mbps, which is what I expected.
Test 2 - I enabled jumbo frame support on the PC's and tested. Now I got about 350Mbps, this I did not expect. I figured I'd be at least at the 750Mbps range.
Test 3 - Since not all cards supported 9.5k frames I borrowed an Intel Pro 1000 Nic from work and installed that in each one of my PC's and tested. I still only hit 350Mbps. Unfortunately we only had 1 NIC on hand so I couldn't rule out my onboard NIC's completely. But I did rotate the card through all the PC's without hitting higher speeds.
Test 4 - Thinking my patch pannel or wiring was causing the issue I tried connecting the PC's through the switch with 350mhz CAT5e patch cables. I still only hit 350Mbps. Is there a correlation between the 350mhz cables? I can't find anything higher than that.
I'm running out of ideas here. I have three more thoughts on this.
Conclusion
- I need to get two quality NICs to test with. I was thinking of getting two of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16833106121
- I need CAT6?? I didn't think you'd need CAT6 to hit 1Gbps speeds.
- My switch is the problem? Though I've seen people reporting speeds of 750 - 950 Mbps on this same model.
I'd be much appreciative if someone could give me some advice.
Setup:
Three PC's with onboard gigabit network adapters.
- One supports "jumbo frames" - doesn't specify size
- One supports max 9.5k jumbo frames
- One supports 8000 something size frames
I have a D-Link DGS-2208 switch with jumbo frame support.
Also every room is wired with CAT5e cable to a patch pannel in my network closet.
Testing:
iperf was used for all tests. I also used a 150MB file to do real-world test verification.
Test 1 - I connected the PC's to the switch without enabling jumbo frame support on the NICs and I got about 190Mbps, which is what I expected.
Test 2 - I enabled jumbo frame support on the PC's and tested. Now I got about 350Mbps, this I did not expect. I figured I'd be at least at the 750Mbps range.
Test 3 - Since not all cards supported 9.5k frames I borrowed an Intel Pro 1000 Nic from work and installed that in each one of my PC's and tested. I still only hit 350Mbps. Unfortunately we only had 1 NIC on hand so I couldn't rule out my onboard NIC's completely. But I did rotate the card through all the PC's without hitting higher speeds.
Test 4 - Thinking my patch pannel or wiring was causing the issue I tried connecting the PC's through the switch with 350mhz CAT5e patch cables. I still only hit 350Mbps. Is there a correlation between the 350mhz cables? I can't find anything higher than that.
I'm running out of ideas here. I have three more thoughts on this.
Conclusion
- I need to get two quality NICs to test with. I was thinking of getting two of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16833106121
- I need CAT6?? I didn't think you'd need CAT6 to hit 1Gbps speeds.
- My switch is the problem? Though I've seen people reporting speeds of 750 - 950 Mbps on this same model.
I'd be much appreciative if someone could give me some advice.