Could you try to turn off some NIC hardware features like hardware checksum?
Robin Tom Chen: > Robin, > > We are testing 10G NIC cards and they are directly connected using > fibre optical cable. But the result is same as connected thrugh a 10G > switch. > > Tom > ----- Original Message ----- From: "tian robin luo" <Robin.Luo at Sun.COM> > To: "Tom Chen" <chentom60 at hotmail.com> > Cc: <testing-discuss at opensolaris.org> > Sent: Thursday, March 26, 2009 2:11 AM > Subject: Re: [testing-discuss] possible reason for test02 failure > > >> Hi, Tom >> Are the two under test interfaces connected by a cross cable or a >> switch? >> >> Regards, >> Robin >> >> >> Tom Chen : >>> Hi, >>> >>> Our driver failed in test02, ping with different size of payload. >>> There are lots of error messages: >>> stdout | ping:payload xxxx failed. Using netsat, we found lots of >>> packets are discarded in IP stack. We do not know why, it doesn't >>> look like our drive drops packet. Later, we use two Intel 10g cards >>> to repeat test and found same failure: >>> >>> stdout| ping: payload 7635 failed >>> stdout| ping: payload 7681 failed >>> stdout| ping: payload 7683 failed >>> stdout| ping: payload 7688 failed >>> stdout| ping: payload 7737 failed >>> stdout| ping: payload 7746 failed >>> stdout| ping: payload 7748 failed >>> stdout| ping: payload 7759 failed >>> stdout| ping: payload 7769 failed >>> stdout| ping: payload 7786 failed >>> >>> ipInDiscards are also constantly incrementing: >>> # netstat -s -P ip | grep ipInDiscards >>> ipInUnknownProtos = 49 ipInDiscards = 571 >>> # netstat -s -P ip | grep ipInDiscards >>> ipInUnknownProtos = 49 ipInDiscards = 575 >>> # netstat -s -P ip | grep ipInDiscards >>> ipInUnknownProtos = 51 ipInDiscards = 581 >>> >>> Can someone tell us why we encountered this kind of results? >>> >>> Is it possibly related to enabled network service? we enabled FTP >>> and X-Windows on both test server&client to facilitate file transfer >>> and remote monitoring. Can they affect the test? >>> >>> Tom >>> >> >> >
