[  264.973603] netdevsim netdevsim399 eni399np1: renamed from eth0
[  265.070252] netdevsim netdevsim743 eni743np1: renamed from eth1
[  265.308067] Could not find device with ifindex 2000 in netnsfd 11
[  265.308259] Could not find netns with fd: 2000
[  265.308352] Cannot link a netdevsim to itself
[  265.308474] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).