[  518.079162] netdevsim netdevsim312 eni312np1: renamed from eth0
[  518.175655] netdevsim netdevsim545 eni545np1: renamed from eth1
[  518.407445] Could not find device with ifindex 2000 in netnsfd 11
[  518.407630] Could not find netns with fd: 2000
[  518.407752] Cannot link a netdevsim to itself
[  518.407852] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).