On 2010-06-21, Siju George <[email protected]> wrote: > On Fri, Jun 18, 2010 at 6:53 PM, Stuart Henderson <[email protected]> > wrote: >>> ISSUE : Mismatch in negotiation settings with modem and CPE. >>> >>> CPE : Netgear WIFI Router with no option to manage negotiation settings. >>> >>> ASMI52 Modem is set to Auto OFF 100F. >>> >>> This mismatch will lead link to migrate to half duplex mode and making >>> issues in upload stream. >>> >>> ========================= >>> >>> So it is auto negotiation problem as Reyk suggested at first but how >>> to get rid of it in OpenBSD NIC? >>> >>> thanks >>> >>> --Siju >> >> Either the ASMI52 should be set to allow auto-negotiation, or >> your nic should be set to force 100Mb full-duplex ("media 100baseTX >> mediaopt full-duplex"). >> >> I suggest you try a different NIC if you can't get your rl(4) to >> establish link. >> > > They won't enable auto negotiation on ASMI52 :-( > > So I tried using sk0 and it gives the connection with > > sk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:0f:3d:88:9e:d4 > priority: 0 > groups: egress > media: Ethernet autoselect (100baseTX half-duplex) > status: active > > so after giving " media 100baseTX mediaopt full-duplex" > > it gives > > sk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:0f:3d:88:9e:d4 > priority: 0 > groups: egress > media: Ethernet 100baseTX full-duplex > status: active > > Thanks a million :-) But it still shows packet loss 2-3 % guess it > would be some thing else :-) > > thanks a lot again!!! > > --Siju > >
As I'm sure you already know, 3% packet loss has a big effect on TCP speeds. If you get packet loss when you ping the modem, rather than just to sites on the internet: - try forcing to half duplex, in case the modem is misconfigured to 100H - try different cables, if you didn't already (make sure to try different *length* cables) Please show "netstat -in" output for sk0. Perhaps the modem is faulty? could your provider exchange it to test?
