Public bug reported: On three identical servers - sleds in a blade chassis. the NIC name of one of the servers suddenly changed, causing an outage. The netplan config could not assign IP to the interface due to the name change.
enp96s0f0 to enp96s0f0np0 The two other servers still have the enp96s0f0 name. No BIOS or other configuration change is detectable between the three systems. Firmware, software - all the same I tried to debug this issue myself, but it turned out to be a very niche and complicated topic. I went to submit an issue on https://github.com/systemd/systemd/issues, but they only accept issues for newer versions. System info: dundts@mongodb-rs2:~$ lsb_release -rd Description: Ubuntu 22.04.3 LTS Release: 22.04 dundts@mongodb-rs2:~$ apt-cache policy systemd system: Installiert: 249.11-0ubuntu3.11 Installationskandidat: 249.11-0ubuntu3.12 Versionstabelle: 249.11-0ubuntu3.12 500 500 http://de.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages *** 249.11-0ubuntu3.11 100 100 /var/lib/dpkg/status 249.11-0ubuntu3.7 500 500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages 249.11-0ubuntu3 500 500 http://de.archive.ubuntu.com/ubuntu jammy/main amd64 Packages dundts@mongodb-rs2:~$ sudo dmesg | grep i40e [sudo] password for dundts: [ 3.657531] i40e: Intel(R) Ethernet Connection XL710 Network Driver [ 3.658208] i40e: Copyright (c) 2013 - 2019 Intel Corporation. [ 3.715866] i40e 0000:60:00.0: fw 3.1.54559 api 1.5 nvm 3.2d 0x80000b4b 1.1767.0 [8086:37d3] [152d:8a40] [ 3.720222] i40e 0000:60:00.0: MAC address: d8:c4:97:4c:66:ae [ 3.720558] i40e 0000:60:00.0: FW LLDP is enabled [ 3.732613] i40e 0000:60:00.0: Added LAN device PF0 bus=0x60 dev=0x00 func=0x00 [ 3.733075] i40e 0000:60:00.0: Features: PF-id[0] VFs: 32 VSIs: 66 QP: 32 RSS FD_ATR FD_SB NTUPLE DCB VxLAN Geneve PTP VEPA [ 3.788671] i40e 0000:60:00.1: fw 3.1.54559 api 1.5 nvm 3.2d 0x80000b4b 1.1767.0 [8086:37d3] [152d:8a40] [ 3.804478] i40e 0000:60:00.1: MAC address: d8:c4:97:4c:66:af [ 3.804964] i40e 0000:60:00.1: FW LLDP is enabled [ 3.839982] i40e 0000:60:00.1 eth1: NIC Link is Up, 10 Gbps Full Duplex, Flow Control: None [ 3.851939] i40e 0000:60:00.1: Added LAN device PF1 bus=0x60 dev=0x00 func=0x01 [ 3.877994] i40e 0000:60:00.1: Features: PF-id[1] VFs: 32 VSIs: 66 QP: 32 RSS FD_ATR FD_SB NTUPLE DCB VxLAN Geneve PTP VEPA [ 4.065330] i40e 0000:60:00.0 enp96s0f0np0: renamed from eth0 [ 4.096320] i40e 0000:60:00.1 enp96s0f1np1: renamed from eth1 dundts@mongodb-rs2:~$ sudo udevadm info /sys/class/net/enp96s0f0np0 P: /devices/pci0000:5d/0000:5d:00.0/0000:5e:00.0/0000:5f:03.0/0000:60:00.0/net/enp96s0f0np0 L: 0 E: DEVPATH=/devices/pci0000:5d/0000:5d:00.0/0000:5e:00.0/0000:5f:03.0/0000:60:00.0/net/enp96s0f0np0 E: INTERFACE=enp96s0f0np0 E: IFINDEX=2 E: SUBSYSTEM=net E: USEC_INITIALIZED=4079509 E: ID_MM_CANDIDATE=1 E: ID_NET_NAMING_SCHEME=v249 E: ID_NET_NAME_MAC=enxd8c4974c66ae E: ID_OUI_FROM_DATABASE=Quanta Computer Inc. E: ID_NET_NAME_PATH=enp96s0f0np0 E: ID_BUS=pci E: ID_VENDOR_ID=0x8086 E: ID_MODEL_ID=0x37d3 E: ID_PCI_CLASS_FROM_DATABASE=Network controller E: ID_PCI_SUBCLASS_FROM_DATABASE=Ethernet controller E: ID_VENDOR_FROM_DATABASE=Intel Corporation E: ID_MODEL_FROM_DATABASE=Ethernet Connection X722 for 10GbE SFP+ E: ID_PATH=pci-0000:60:00.0 E: ID_PATH_TAG=pci-0000_60_00_0 E: ID_NET_DRIVER=i40e E: ID_NET_LINK_FILE=/usr/lib/systemd/network/99-default.link E: ID_NET_NAME=enp96s0f0np0 E: NM_UNMANAGED=1 E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/enp96s0f0np0 E: TAGS=:systemd: E: CURRENT_TAGS=:system: ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2085835 Title: "Predictable Network Interface Naming" suddenly changed the name from enp96s0f0 to enp96s0f0np0 causing outage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2085835/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
