[ 1027.980383][ T8139] netdevsim netdevsim393 eni393np1: renamed from eth0
[ 1028.000401][ T8141] netdevsim netdevsim521 eni521np1: renamed from eth1
[ 1031.324990][ T8132] Could not find device with ifindex 2000 in netnsfd 11
[ 1031.325804][ T8132] Could not find netns with fd: 2000
[ 1031.326461][ T8132] Cannot link a netdevsim to itself
[ 1031.327529][ T8132] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).