[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Fully virtualized networking issues.
HiI did try again with another network bridge that throughout uses standard MTU 1500. Also here I cannot get any packet in domU and vice versa. domU-hvm --b--- 74 0.0 1056640 12.6 1064960 12.7 1 2 0 0 2 0 0 0 2149620944 Net0 RX: 0bytes 0pkts 0err 458296drop TX: 0bytes 0pkts 0err 0drop <-- bridge that uses MTU 5000 Net1 RX: 0bytes 0pkts 0err 34121drop TX: 0bytes 0pkts 0err 0drop <-- bridge that uses MTU 1500 When I try to ping a host from domU these packets just get lost. No errors or drops at domU network interface but also no appearance of these packets in domU network. It really seems that there is no connectivity at all between dom0 networking and the emulated domU device. What could cause this? Kind regards Reto Gantenbein On May 2, 2008, at 12:14 PM, Reto Gantenbein wrote: Hello everybodyI experience the same problem with a fully virtualized linux domU on xen-3.2.0. The machine is a Sun X4200M2 with a "nVidia Corporation CK804 Ethernet Controller" network device. It's a gigabit device using the forcedeth driver. The tap device works fine but then the vif drops all the packets! Why is this?Here my output: bridge name bridge id STP enabled interfaces core 8000.00144f9ac773 no pcore vif8.1 vif17.0 tap0 pcore Link encap:Ethernet HWaddr 00:14:4F:xx:xx:xx UP BROADCAST RUNNING MULTICAST MTU:5000 Metric:1 RX packets:75480611 errors:4 dropped:0 overruns:0 frame:4 TX packets:71130077 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000RX bytes:139163029640 (132716.2 Mb) TX bytes:162640218550 (155105.7 Mb)Interrupt:47 Base address:0x8000 vif8.1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF UP BROADCAST RUNNING MULTICAST MTU:5000 Metric:1 RX packets:59547485 errors:0 dropped:0 overruns:0 frame:0 TX packets:62527763 errors:0 dropped:915 overruns:0 carrier:0 collisions:0 txqueuelen:32RX bytes:131652168382 (125553.2 Mb) TX bytes:134094016346 (127882.0 Mb)vif17.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:177716 overruns:0 carrier:0 collisions:0 txqueuelen:32 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) tap0 Link encap:Ethernet HWaddr 00:FF:90:57:73:FD UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:173199 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:0 (0.0 b) TX bytes:20296723 (19.3 Mb)I can see the interface in my domU but it doesn't receive any traffic at all. I already tried with model=ne2k_pci and model=rtl8139 in the domU configuration. It didn't change anything.I also have to mention that the bridged interface pcore is using MTU 5000 (that cannot be changed because the other domU relies on it). When I would like to assign MTU 5000 to vif17.0 it fails with a "SIOCSIFMTU: Invalid argument" errno.Any hints about this? Kind regards, Reto Gantenbein _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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