[  815.619516][T15834] netdevsim netdevsim260 eni260np1: renamed from eth0
[  815.631535][T15831] netdevsim netdevsim750 eni750np1: renamed from eth1
[  816.286656][T15820] Could not find device with ifindex 2000 in netnsfd 11
[  816.287456][T15820] Could not find netns with fd: 2000
[  816.288044][T15820] Cannot link a netdevsim to itself
[  816.288721][T15820] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).