[  782.373742][T14766] netdevsim netdevsim399 eni399np1: renamed from eth0
[  782.385243][T14768] netdevsim netdevsim544 eni544np1: renamed from eth1
[  783.023635][T14754] Could not find device with ifindex 2000 in netnsfd 11
[  783.024240][T14754] Could not find netns with fd: 2000
[  783.024642][T14754] Cannot link a netdevsim to itself
[  783.025108][T14754] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).