[  835.392284][T15768] netdevsim netdevsim412 eni412np1: renamed from eth0
[  835.411052][T15766] netdevsim netdevsim693 eni693np1: renamed from eth1
[  836.011370][T15755] Could not find device with ifindex 2000 in netnsfd 11
[  836.012010][T15755] Could not find netns with fd: 2000
[  836.012876][T15755] Cannot link a netdevsim to itself
[  836.013584][T15755] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).