[  487.627308] netdevsim netdevsim381 eni381np1: renamed from eth0
[  487.723850] netdevsim netdevsim549 eni549np1: renamed from eth1
[  487.949504] Could not find device with ifindex 2000 in netnsfd 11
[  487.949790] Could not find netns with fd: 2000
[  487.949891] Cannot link a netdevsim to itself
[  487.950016] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).