[  483.084372] netdevsim netdevsim420 eni420np1: renamed from eth0
[  483.186263] netdevsim netdevsim738 eni738np1: renamed from eth1
[  483.517786] Could not find device with ifindex 2000 in netnsfd 11
[  483.517923] Could not find netns with fd: 2000
[  483.517995] Cannot link a netdevsim to itself
[  483.518080] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).