[  457.370044] netdevsim netdevsim272 eni272np1: renamed from eth0
[  457.370957] netdevsim netdevsim749 eni749np1: renamed from eth1
[  457.467262] Could not find device with ifindex 2000 in netnsfd 11
[  457.467443] Could not find netns with fd: 2000
[  457.467560] Cannot link a netdevsim to itself
[  457.467694] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).