[  522.111461] netdevsim netdevsim437 eni437np1: renamed from eth0
[  522.209201] netdevsim netdevsim675 eni675np1: renamed from eth1
[  522.426035] Could not find device with ifindex 2000 in netnsfd 11
[  522.426241] Could not find netns with fd: 2000
[  522.426318] Cannot link a netdevsim to itself
[  522.426435] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).