[  456.300075] netdevsim netdevsim467 eni467np1: renamed from eth0
[  456.303263] netdevsim netdevsim577 eni577np1: renamed from eth1
[  456.392152] Could not find device with ifindex 2000 in netnsfd 11
[  456.392254] Could not find netns with fd: 2000
[  456.392301] Cannot link a netdevsim to itself
[  456.392353] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).