[  520.721140] netdevsim netdevsim696 eni696np1: renamed from eth1
[  520.817313] netdevsim netdevsim469 eni469np1: renamed from eth0
[  521.060878] Could not find device with ifindex 2000 in netnsfd 11
[  521.061118] Could not find netns with fd: 2000
[  521.061229] Cannot link a netdevsim to itself
[  521.061370] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).