[  523.374823] netdevsim netdevsim483 eni483np1: renamed from eth0
[  523.471573] netdevsim netdevsim590 eni590np1: renamed from eth1
[  523.710178] Could not find device with ifindex 2000 in netnsfd 11
[  523.710343] Could not find netns with fd: 2000
[  523.710417] Cannot link a netdevsim to itself
[  523.710503] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).