[  477.010699] netdevsim netdevsim272 eni272np1: renamed from eth0
[  477.011458] netdevsim netdevsim561 eni561np1: renamed from eth1
[  477.105639] Could not find device with ifindex 2000 in netnsfd 11
[  477.105728] Could not find netns with fd: 2000
[  477.105770] Cannot link a netdevsim to itself
[  477.105831] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).