[  534.928950] netdevsim netdevsim594 eni594np1: renamed from eth1
[  535.025657] netdevsim netdevsim456 eni456np1: renamed from eth0
[  535.261413] Could not find device with ifindex 2000 in netnsfd 11
[  535.261653] Could not find netns with fd: 2000
[  535.261764] Cannot link a netdevsim to itself
[  535.261887] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).