DragonFly users List (threaded) for 2006-10
Re: Network Slowdowns?
Someone suggested changing the duplex settings on the other side, I know
it's running full duplex on DragonFlyBSD, but.. I don't know how to even
find out linux side. I'll have to research that I guess.
ethtool works for me:
Settings for eth0:
Supported ports: [ MII ]
Supported link modes: 10baseT/Half 10baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
Advertised auto-negotiation: Yes
Port: Twisted Pair
Supports Wake-on: g
Current message level: 0x000000ff (255)
Link detected: yes
Are both ends 'local' to you?
Is there a (switching)hub in between? Router? Just a cable?
Is anything else on the cable plant that you could disconnect for a time.
Are you in a high-noise environment? EG arc-welders, neon signs, oil-burner
igniters, large motors w/o zero-crossing controls, even hotplates, fluorescents
going bad, heaters, hot-water pots - and once a faulty scr in an electric steam
Woudl loan you my Fluke 'Scopemeter', but ....distance...
- obvious next step of adding/subtracting/swapping-out, if so.
By this time, I suspect that at least one other person would have reported
*something* similar with DFLY if it was a core code or driver issue.
As that seems not the case, it is more and more likely to be hardware/firmware,
or something else quite specific to your environment alone.
Perchance does tcpdump show a good fast start, then a gradual clogging and slowdown?
- That was the symptom when I had SiS NIC troubles, tho' I initially blamed it
on MTU size mismatch (other end was a 'broadand' cable-modem provider the other
side of the island).