[  493.142952] netdevsim netdevsim535 eni535np1: renamed from eth1
[  493.238781] netdevsim netdevsim444 eni444np1: renamed from eth0
[  493.464355] Could not find device with ifindex 2000 in netnsfd 11
[  493.464751] Could not find netns with fd: 2000
[  493.464884] Cannot link a netdevsim to itself
[  493.465031] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).