[  456.820322] netdevsim netdevsim277 eni277np1: renamed from eth0
[  456.824169] netdevsim netdevsim675 eni675np1: renamed from eth1
[  456.918476] Could not find device with ifindex 2000 in netnsfd 11
[  456.918578] Could not find netns with fd: 2000
[  456.918624] Cannot link a netdevsim to itself
[  456.918674] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).