since last apt update server lost network completely. Trying to restart give this line which I suspect most: Assertion 'ifindex' failed at src/network/networkd-link.c:757, function link_get(). Aborting. Server configuration uses bonding and bridging. Which could mean, that problems appeared to create bond (was working fine starting 22.04 install). netplan --debug generate DEBUG:command generate: running ['/lib/netplan/generate'] ** (generate:12272): DEBUG: 15:03:42.857: starting new processing pass ** (generate:12272): DEBUG: 15:03:42.858: starting new processing pass ** (generate:12272): DEBUG: 15:03:42.858: We have some netdefs, pass them through a final round of validation ** (generate:12272): DEBUG: 15:03:42.858: br0: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: enp6s0: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: enp3s0: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: enp66s0f1: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: enp4s0: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: enp66s0f0: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: bond0: setting default backend to 1 ** (generate:12272): DEBUG: 15:03:42.858: Configuration is valid ** (generate:12272): DEBUG: 15:03:42.858: Generating output files.. ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition enp3s0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition enp3s0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition enp4s0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition enp4s0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition enp6s0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition enp6s0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition enp66s0f0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition enp66s0f0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition enp66s0f1 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition enp66s0f1 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition bond0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition bond0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: openvswitch: definition br0 is not for us (backend 1) ** (generate:12272): DEBUG: 15:03:42.858: NetworkManager: definition br0 is not for us (backend 1) (generate:12272): GLib-DEBUG: 15:03:42.859: posix_spawn avoided (fd close requested) (generate:12272): GLib-DEBUG: 15:03:42.866: posix_spawn avoided (fd close requested) netplan --debug apply ** (generate:12356): DEBUG: 15:05:56.679: starting new processing pass ** (generate:12356): DEBUG: 15:05:56.679: starting new processing pass ** (generate:12356): DEBUG: 15:05:56.679: We have some netdefs, pass them through a final round of validation ** (generate:12356): DEBUG: 15:05:56.679: br0: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: enp6s0: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: enp3s0: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: enp66s0f1: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: enp4s0: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: enp66s0f0: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: bond0: setting default backend to 1 ** (generate:12356): DEBUG: 15:05:56.679: Configuration is valid ** (generate:12356): DEBUG: 15:05:56.679: Generating output files.. ** (generate:12356): DEBUG: 15:05:56.679: openvswitch: definition enp3s0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.679: NetworkManager: definition enp3s0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.679: openvswitch: definition enp4s0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.679: NetworkManager: definition enp4s0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: openvswitch: definition enp6s0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: NetworkManager: definition enp6s0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: openvswitch: definition enp66s0f0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: NetworkManager: definition enp66s0f0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: openvswitch: definition enp66s0f1 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: NetworkManager: definition enp66s0f1 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: openvswitch: definition bond0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: NetworkManager: definition bond0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: openvswitch: definition br0 is not for us (backend 1) ** (generate:12356): DEBUG: 15:05:56.680: NetworkManager: definition br0 is not for us (backend 1) (generate:12356): GLib-DEBUG: 15:05:56.680: posix_spawn avoided (fd close requested) (generate:12356): GLib-DEBUG: 15:05:56.684: posix_spawn avoided (fd close requested) DEBUG:netplan generated networkd configuration changed, reloading networkd DEBUG:enp3s0 not found in {} DEBUG:enp4s0 not found in {'enp3s0': {}} DEBUG:enp6s0 not found in {'enp3s0': {}, 'enp4s0': {}} DEBUG:enp66s0f0 not found in {'enp3s0': {}, 'enp4s0': {}, 'enp6s0': {'dhcp4': True}} DEBUG:enp66s0f1 not found in {'enp3s0': {}, 'enp4s0': {}, 'enp6s0': {'dhcp4': True}, 'enp66s0f0': {}} DEBUG:br0 not found in {} DEBUG:bond0 not found in {} DEBUG:Merged config: network: bonds: bond0: dhcp4: false interfaces: - enp66s0f0 - enp66s0f1 parameters: lacp-rate: fast mode: 802.3ad transmit-hash-policy: layer2+3 bridges: br0: addresses: - 192.168.0.111/24 dhcp4: false gateway4: 192.168.0.1 interfaces: - bond0 nameservers: addresses: - 192.168.0.1 - 192.168.0.1 search: - lan ethernets: enp6s0: dhcp4: true version: 2 DEBUG:no netplan generated NM configuration exists DEBUG:enp3s0 not found in {} DEBUG:enp4s0 not found in {'enp3s0': {}} DEBUG:enp6s0 not found in {'enp3s0': {}, 'enp4s0': {}} DEBUG:enp66s0f0 not found in {'enp3s0': {}, 'enp4s0': {}, 'enp6s0': {'dhcp4': True}} DEBUG:enp66s0f1 not found in {'enp3s0': {}, 'enp4s0': {}, 'enp6s0': {'dhcp4': True}, 'enp66s0f0': {}} DEBUG:br0 not found in {} DEBUG:bond0 not found in {} DEBUG:Merged config: network: bonds: bond0: dhcp4: false interfaces: - enp66s0f0 - enp66s0f1 parameters: lacp-rate: fast mode: 802.3ad transmit-hash-policy: layer2+3 bridges: br0: addresses: - 192.168.0.111/24 dhcp4: false gateway4: 192.168.0.1 interfaces: - bond0 nameservers: addresses: - 192.168.0.1 - 192.168.0.1 search: - lan ethernets: enp6s0: dhcp4: true version: 2 DEBUG:Link changes: {} DEBUG:netplan triggering .link rules for lo DEBUG:netplan triggering .link rules for enp3s0 DEBUG:netplan triggering .link rules for enp4s0 DEBUG:netplan triggering .link rules for enp6s0 DEBUG:netplan triggering .link rules for enp66s0f0 DEBUG:netplan triggering .link rules for enp66s0f1 ** (process:12354): DEBUG: 15:05:58.940: starting new processing pass ** (process:12354): DEBUG: 15:05:58.940: starting new processing pass ** (process:12354): DEBUG: 15:05:58.941: We have some netdefs, pass them through a final round of validation ** (process:12354): DEBUG: 15:05:58.941: br0: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid ** (process:12354): DEBUG: 15:05:58.941: enp6s0: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid ** (process:12354): DEBUG: 15:05:58.941: enp3s0: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid ** (process:12354): DEBUG: 15:05:58.941: enp66s0f1: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid ** (process:12354): DEBUG: 15:05:58.941: enp4s0: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid ** (process:12354): DEBUG: 15:05:58.941: enp66s0f0: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid ** (process:12354): DEBUG: 15:05:58.941: bond0: setting default backend to 1 ** (process:12354): DEBUG: 15:05:58.941: Configuration is valid DEBUG:enp3s0 not found in {} DEBUG:enp4s0 not found in {'enp3s0': {}} DEBUG:enp6s0 not found in {'enp3s0': {}, 'enp4s0': {}} DEBUG:enp66s0f0 not found in {'enp3s0': {}, 'enp4s0': {}, 'enp6s0': {'dhcp4': True}} DEBUG:enp66s0f1 not found in {'enp3s0': {}, 'enp4s0': {}, 'enp6s0': {'dhcp4': True}, 'enp66s0f0': {}} DEBUG:br0 not found in {} DEBUG:bond0 not found in {} DEBUG:Merged config: network: bonds: bond0: dhcp4: false interfaces: - enp66s0f0 - enp66s0f1 parameters: lacp-rate: fast mode: 802.3ad transmit-hash-policy: layer2+3 bridges: br0: addresses: - 192.168.0.111/24 dhcp4: false gateway4: 192.168.0.1 interfaces: - bond0 nameservers: addresses: - 192.168.0.1 - 192.168.0.1 search: - lan ethernets: enp6s0: dhcp4: true version: 2 Failed to reconfigure network interface enp3s0: Connection timed out WARNING:Falling back to a hard restart of systemd-networkd.service Syslog: Jul 18 15:05:59 server2435 systemd[1]: systemd-networkd.service: Main process exited, code=dumped, status=6/ABRT Jul 18 15:05:59 server2435 systemd[1]: systemd-networkd.service: Failed with result 'core-dump'. Jul 18 15:05:59 server2435 systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 1. Jul 18 15:05:59 server2435 systemd[1]: Condition check resulted in OpenVSwitch configuration for cleanup being skipped. Jul 18 15:05:59 server2435 systemd[1]: Stopped Network Service. Jul 18 15:05:59 server2435 systemd[1]: Starting Network Service... Jul 18 15:05:59 server2435 systemd-networkd[12498]: enp6s0: Gained IPv6LL Jul 18 15:05:59 server2435 systemd-networkd[12498]: Enumeration completed Jul 18 15:05:59 server2435 systemd[1]: Started Network Service. Jul 18 15:05:59 server2435 systemd-networkd[12498]: bond0: netdev could not be created: Operation not supported Jul 18 15:05:59 server2435 systemd-networkd[12498]: br0: netdev could not be created: Operation not supported Jul 18 15:05:59 server2435 systemd-networkd[12498]: enp6s0: IPv6 successfully enabled Jul 18 15:05:59 server2435 systemd-networkd[12498]: enp4s0: IPv6 successfully enabled Jul 18 15:05:59 server2435 systemd-networkd[12498]: enp3s0: IPv6 successfully enabled Jul 18 15:05:59 server2435 systemd-networkd[12498]: enp66s0f1: Could not join netdev: No such device Jul 18 15:05:59 server2435 systemd-networkd[12498]: enp66s0f1: Failed Jul 18 15:05:59 server2435 kernel: [ 865.475137] pps pps3: new PPS source ptp3 Jul 18 15:05:59 server2435 kernel: [ 865.475774] ixgbe 0000:42:00.1: registered PHC device on enp66s0f1 Jul 18 15:06:00 server2435 systemd-networkd[12498]: Assertion 'ifindex' failed at src/network/networkd-link.c:757, function link_get(). Aborting. Jul 18 15:06:00 server2435 systemd[1]: systemd-networkd.service: Main process exited, code=dumped, status=6/ABRT Jul 18 15:06:00 server2435 systemd[1]: systemd-networkd.service: Failed with result 'core-dump'. Jul 18 15:06:00 server2435 systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 2. Jul 18 15:06:00 server2435 systemd[1]: Condition check resulted in OpenVSwitch configuration for cleanup being skipped. Jul 18 15:06:00 server2435 systemd[1]: Stopped Network Service. Jul 18 15:06:00 server2435 systemd[1]: Starting Network Service... Jul 18 15:06:00 server2435 systemd[1]: Condition check resulted in OpenVSwitch configuration for cleanup being skipped. Jul 18 15:06:00 server2435 systemd[1]: systemd-networkd.service: Main process exited, code=killed, status=12/USR2 Jul 18 15:06:00 server2435 systemd[1]: systemd-networkd.service: Failed with result 'signal'. Jul 18 15:06:00 server2435 systemd[1]: Stopped Network Service. Jul 18 15:06:00 server2435 systemd[1]: Starting Network Service... Jul 18 15:06:00 server2435 systemd-networkd[12520]: enp6s0: Gained IPv6LL