[  485.075964] netdevsim netdevsim391 eni391np1: renamed from eth0
[  485.076799] netdevsim netdevsim657 eni657np1: renamed from eth1
[  485.175168] Could not find device with ifindex 2000 in netnsfd 11
[  485.175279] Could not find netns with fd: 2000
[  485.175327] Cannot link a netdevsim to itself
[  485.175378] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).