[  755.693153][T14723] netdevsim netdevsim415 eni415np1: renamed from eth0
[  755.714501][T14725] netdevsim netdevsim660 eni660np1: renamed from eth1
[  756.275866][T14711] Could not find device with ifindex 2000 in netnsfd 11
[  756.276452][T14711] Could not find netns with fd: 2000
[  756.277099][T14711] Cannot link a netdevsim to itself
[  756.277656][T14711] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).