[  477.690348] netdevsim netdevsim437 eni437np1: renamed from eth0
[  477.690668] netdevsim netdevsim745 eni745np1: renamed from eth1
[  477.787651] Could not find device with ifindex 2000 in netnsfd 11
[  477.787753] Could not find netns with fd: 2000
[  477.787797] Cannot link a netdevsim to itself
[  477.787849] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).