[  456.039415] netdevsim netdevsim628 eni628np1: renamed from eth1
[  456.039705] netdevsim netdevsim448 eni448np1: renamed from eth0
[  456.137941] Could not find device with ifindex 2000 in netnsfd 11
[  456.138064] Could not find netns with fd: 2000
[  456.138117] Cannot link a netdevsim to itself
[  456.138180] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).