On Mon, Apr 13, 2020 at 10:48 PM Tim via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > > On Tue, 2020-04-14 at 00:26 +0200, Tom H wrote: > > The improvement's when you have a multiple NICs and swap one out. You > > no longer have to edit "/etc/udev/rules.d/<something>.rules" in order > > to have the swapped-in NIC keep the name of the swapped-out NIC. > > My understanding of how the device names were generated was that if you > didn't replace a NIC with an identical model, in the exact same spot, > you could well end up with a different device name. > If the PCI bus setup does not change the location and naming does not change. On some cards there is a extra pci piece of hw that changes the final numbering usually because one 4pt card is directly attached to the pci bus but the other 4pt card is really 2 - 2pt cards sitting on a piece of hw that allows that to happen. Once a given node was installed it was very very rare to change the card setup, we accepted that. And we only have one model of nic card per model of actual machine, so we replace with identical 99% of the time, and when we don't we move to the defined udev rule for the new config (new udev rule when dissimilar hardware models were use on 5/6 to force the mapping to work, just renamed ifcfg- names and device= on 7 based on a mapping table that we had). > There was an order of how to name things, starting at the top, going > down the list if that scheme wasn't do-able: > > Firmware or BIOS can form the device name. That seems to be pretty inconsistent even with the server vendors I have dealt with, and generally it completely goes out the window with any pci add-in cards. With the desktop vendors and/or vmware it seems to not exist. The 7 naming scheme says using bios name first then move to the pci bus naming, so yours having an odd names means your bios did set it. > > Board location can form the name (derived from things like PCI slot 2). > > Number of connectors on the board can be used in forming the name > (adding more details to the above naming scheme). > > Heck knows what mine's derived from (enp0s31f6 is the motherboard's own > built in ethernet), and I can never remember that. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
