[  480.073692] netdevsim netdevsim407 eni407np1: renamed from eth0
[  480.074414] netdevsim netdevsim544 eni544np1: renamed from eth0
[  480.162280] Could not find device with ifindex 2000 in netnsfd 11
[  480.162425] Could not find netns with fd: 2000
[  480.162527] Cannot link a netdevsim to itself
[  480.162642] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).