Hi People! How are you doing? I'm writting to you because I have a doubt about interrupts. If I look the interrupts assigned to my eth* with ifconfig, I get: eth0 Link encap:Ethernet HWaddr bb:aa:bb:bb:aa:aa Interrupt:20 Memory:f7e00000-f7e20000 eth1 Link encap:Ethernet HWaddr bb:aa:bb:bb:aa:aa Interrupt:18 Memory:f7d00000-f7d20000 As you can see, my system assigned IRQ-20 and IRQ-18 to eth0 and eth1. But If i look into /proc/interrupts, I don't have these interrupts: root@oscar:/home/oscar# cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 0: 15 0 0 0 0 0 0 0 IR-IO-APIC-edge timer 8: 0 1 0 0 0 0 0 0 IR-IO-APIC-edge rtc0 9: 0 0 0 0 0 2 1 0 IR-IO-APIC-fasteoi acpi 16: 191342 27819 25143 21231 19007 18159 17183 15717 IR-IO-APIC-fasteoi ehci_hcd:usb3 19: 15 7 0 0 2 9 1 4 IR-IO-APIC-fasteoi firewire_ohci 23: 1441 76 61 42 101 55 29 23 IR-IO-APIC-fasteoi ehci_hcd:usb4 40: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar0 41: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar1 42: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd 43: 27318 1788 1314 1414 4046 2273 2232 2059 IR-PCI-MSI-edge eth0 44: 115244 14686 10096 8738 41559 16021 10972 10090 IR-PCI-MSI-edge ahci 45: 197010 19487 45260 14687 43697 29520 24546 21590 IR-PCI-MSI-edge eth1-rx-0 46: 27239 20276 18861 14845 54218 17950 12907 9765 IR-PCI-MSI-edge eth1-tx-0 47: 0 0 1 0 0 0 0 1 IR-PCI-MSI-edge eth1 48: 262 150 78 60 261 249 168 47 IR-PCI-MSI-edge snd_hda_intel 49: 857324 80338 67789 59555 682632 90385 78616 65048 IR-PCI-MSI-edge i915 As you can see, seems to be that eth1 has IRQ-45 IRQ-46 and IRQ-47, and eth0 has IRQ-43. I don't understand why ifconfig shows another IRQ. Is this a normal behaviour? Someone would be so kind to explain me this? Or maybe throw me some paper that explains this. thank you very much Best Regards Oscar