Thread: Ubuntu server network speed (different down versus up)

hi,

i'm connected gigabit ethernet server 11.10 (via apple airport extreme router).

when run iperf, different speed when download or upload server:

code:

-- server (10.0.1.2) --  mike@localserver:~$ iperf -c 10.0.1.105 -d ------------------------------------------------------------ server listening on tcp port 5001 tcp window size: 85.3 kbyte (default) ------------------------------------------------------------ ------------------------------------------------------------ client connecting 10.0.1.105, tcp port 5001 tcp window size:  178 kbyte (default) ------------------------------------------------------------ [  5] local 10.0.1.2 port 35473 connected 10.0.1.105 port 5001 [  4] local 10.0.1.2 port 5001 connected 10.0.1.105 port 1791 [ id] interval       transfer     bandwidth [  5]  0.0-10.0 sec   973 mbytes   816 mbits/sec [  4]  0.0-10.0 sec   180 mbytes   151 mbits/sec    -- client (10.0.1.105), (iperf.exe -c 10.0.1.2 -d) --  [1860] local 10.0.1.105 port 1785 connected 10.0.1.2 port 5001 [1836] local 10.0.1.105 port 5001 connected 10.0.1.2 port 35471 [ id] interval       transfer     bandwidth [1836]  0.0-10.0 sec   958 mbytes   804 mbits/sec [1860]  0.0-10.0 sec   175 mbytes   146 mbits/sec

the server using onboard gbit nic

i've installed ubuntu server on dual core 2ghz cpu , 1 gig ram onboard nic (motherboard: gigabyte ga-k8n-f9 rev.1)

cables cat5e (server airport extreme) & cat5 (client aiport extreme)

should buy cat6 cables , new standalone nic server ? client thinkpad r61i.

thank !

that's how is, here's why:

1. download speeds faster upload because isp or router knows users download more , download more (visit websites, check email, etc) upload (upload attachments, host website, etc).
2. every speedtest different.
3. the less data send on network (for speedtest), less accurate data is. if possible, use large files sizes 1-5 gb.
4. in general, wired way faster wireless.

if want faster/more network speeds, consider looking @ fibre channel networking and/or making own router old machine.

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