Enabling Jumbo frames on NICs

S

SCSIraidGURU

New Member
My network speed was below 22 MB/s with 1500 byte frames.

I set my X7DWA-N Intel NIC to 9000 byte frames. My Thunder K8WE to 9014 byte frames.

Dlink gaming router DGL-4300
X7DWA-N
CAT 6 Plenum Grade solid wire backbone

Dlink DGS-2205 switch
Thunder K8WE
Fedora 7 web server
CAT 6 Plenum Grade solid wire backbone

Everything is CAT 6 and 1 Gbps. Vista reports 44 MB/s when copying 100 MB+ files. I am adding a DGS-2205 on the DGL-4300. The DGL-4300 does not support jumbo framing. I found how to do it in Fedora 7. Set MTU=9000 in a network file. I was expect closer to 70-80 MB/s. The Dlink DGS-2205 has a 10 Gbps fabric switch. I might put Intel server NICs in each workstation and server to match frame size. Any other suggestions?
 

My Computer

System One

  • CPU
    pair of Intel E5430 quad core 2.66 GHz Xeons
    Motherboard
    Supermicro X7DWA-N server board
    Memory
    16GB DDR667
    Graphics card(s)
    eVGA 8800 GTS 640 MB video card
    Hard Drives
    SAS RAID
SCSIraidGURU said:
My network speed was below 22 MB/s with 1500 byte frames.

I set my X7DWA-N Intel NIC to 9000 byte frames. My Thunder K8WE to 9014 byte frames.

Dlink gaming router DGL-4300
X7DWA-N
CAT 6 Plenum Grade solid wire backbone

Dlink DGS-2205 switch
Thunder K8WE
Fedora 7 web server
CAT 6 Plenum Grade solid wire backbone

Everything is CAT 6 and 1 Gbps. Vista reports 44 MB/s when copying 100 MB+ files. I am adding a DGS-2205 on the DGL-4300. The DGL-4300 does not support jumbo framing. I found how to do it in Fedora 7. Set MTU=9000 in a network file. I was expect closer to 70-80 MB/s. The Dlink DGS-2205 has a 10 Gbps fabric switch. I might put Intel server NICs in each workstation and server to match frame size. Any other suggestions?
Click to expand...

Looks like you got it all covered...Just remember if it reports 44MB/s copying files the real throughput will be 88MB/s because its reading/writing the files, so dubble any reported speed.

You can check this from the Performance Manager in taskman or Performance tools in control panel ;)

Steven
 

My Computer

System One

Perfmon matches that figure. I did get it up to 65 MB/s.
 

My Computer

System One

  • CPU
    pair of Intel E5430 quad core 2.66 GHz Xeons
    Motherboard
    Supermicro X7DWA-N server board
    Memory
    16GB DDR667
    Graphics card(s)
    eVGA 8800 GTS 640 MB video card
    Hard Drives
    SAS RAID
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