[  523.115161] netdevsim netdevsim677 eni677np1: renamed from eth1
[  523.213963] netdevsim netdevsim394 eni394np1: renamed from eth0
[  523.425160] Could not find device with ifindex 2000 in netnsfd 11
[  523.425363] Could not find netns with fd: 2000
[  523.425462] Cannot link a netdevsim to itself
[  523.425588] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).