Hi Jan, I have placed a ping -c 1 directly after the ifconfig up and actually it can be seen that nothing happens on the Ethernet (I run tcpdump from another NIC in the PC, both NICs connected via a HUB). When I add a sleep 2 before the ping I can see the usual sequence of Ethernet frames, starting with the ARP request.
Thus the behaviour of the driver seems actually to be to throw away all frames while the Ethernet line state is not detected yet. Regards Mathias ----- Original Nachricht ---- Von: Jan Kiszka <[EMAIL PROTECTED]> An: "M. Koehrer" <[EMAIL PROTECTED]> Datum: 15.09.2006 14:04 Betreff: Re: [RTnet-users] rt_e1000 driver loading > M. Koehrer wrote: > > O.K., > > > > I have done a test with the standard e1000 driver of linux (2.4.33, the > Intel e1000 driver 7.1.9) > > I have written the following bash script: > > modprobe e1000 > > ifconfig eth1 up 192.168.2.2 > > dmesg -c > > sleep 1 > > echo "--------" > > dmesg -c > > sleep 1 > > echo "--------" > > dmesg -c > > > > The output of this is: > > > > Intel(R) PRO/1000 Network Driver - version 7.1.9 > > Copyright (c) 1999-2006 Intel Corporation. > > e1000: 03:05.0: e1000_probe: (PCI:33MHz:32-bit) 00:0e:0c:b8:e9:32 > > e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection > > -------- > > -------- > > e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Half Duplex > > > > (Here I have connected the e1000 to a Hub - this is where the 100Mbps Half > Duplex comes from). > > As you see it takes about 2 seconds after ifconfig until the e1000 is able > to communicate on Ethernet. > > I think, the situation is the very same with rtnet... > > ...except that Thinus's report indicates total failure if transmissions > takes place earlier. Could you test what happens when you sent packets > during that init period? > > > This is not nice, however as it is a one-time initialization delay I think > it is acceptable. > > I think we could live with a simple delay on ifup, if A) we know for > sure (or almost) how long it must be and B) cable re-plug doesn't render > the device useless until the next manual ifdown/up cycle. > > Jan > > > > -------------------------------- > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > -------------------------------- > > _______________________________________________ > RTnet-users mailing list > RTnet-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/rtnet-users > -- Mathias Koehrer [EMAIL PROTECTED] Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren ohne Zeit- und Volumenbegrenzung? DAS TOP ANGEBOT JETZT bei Arcor: günstig und schnell mit DSL - das All-Inclusive-Paket für clevere Doppel-Sparer, nur 44,85 inkl. DSL- und ISDN-Grundgebühr! http://www.arcor.de/rd/emf-dsl-2 ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
