[  487.142657] netdevsim netdevsim511 eni511np1: renamed from eth0
[  487.240054] netdevsim netdevsim654 eni654np1: renamed from eth1
[  487.440034] Could not find device with ifindex 2000 in netnsfd 11
[  487.440352] Could not find netns with fd: 2000
[  487.440449] Cannot link a netdevsim to itself
[  487.440552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).