[  474.395321] netdevsim netdevsim324 eni324np1: renamed from eth0
[  474.396029] netdevsim netdevsim520 eni520np1: renamed from eth1
[  474.477553] Could not find device with ifindex 2000 in netnsfd 11
[  474.477654] Could not find netns with fd: 2000
[  474.477705] Cannot link a netdevsim to itself
[  474.477768] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).