[  460.158793] netdevsim netdevsim419 eni419np1: renamed from eth0
[  460.162156] netdevsim netdevsim690 eni690np1: renamed from eth1
[  460.244987] Could not find device with ifindex 2000 in netnsfd 11
[  460.245087] Could not find netns with fd: 2000
[  460.245135] Cannot link a netdevsim to itself
[  460.245187] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).