[  491.072359] netdevsim netdevsim612 eni612np1: renamed from eth1
[  491.168696] netdevsim netdevsim270 eni270np1: renamed from eth0
[  491.407226] Could not find device with ifindex 2000 in netnsfd 11
[  491.407524] Could not find netns with fd: 2000
[  491.407606] Cannot link a netdevsim to itself
[  491.407732] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).