[  755.903867][T14595] netdevsim netdevsim510 eni510np1: renamed from eth0
[  755.922966][T14597] netdevsim netdevsim636 eni636np1: renamed from eth1
[  756.474182][T14583] Could not find device with ifindex 2000 in netnsfd 11
[  756.474668][T14583] Could not find netns with fd: 2000
[  756.475029][T14583] Cannot link a netdevsim to itself
[  756.475427][T14583] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).