[  522.073519] netdevsim netdevsim480 eni480np1: renamed from eth0
[  522.171184] netdevsim netdevsim608 eni608np1: renamed from eth1
[  522.396522] Could not find device with ifindex 2000 in netnsfd 11
[  522.396713] Could not find netns with fd: 2000
[  522.396821] Cannot link a netdevsim to itself
[  522.396959] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).