[  518.839423] netdevsim netdevsim690 eni690np1: renamed from eth1
[  518.936512] netdevsim netdevsim354 eni354np1: renamed from eth0
[  519.180657] Could not find device with ifindex 2000 in netnsfd 11
[  519.180907] Could not find netns with fd: 2000
[  519.181010] Cannot link a netdevsim to itself
[  519.181139] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).