[  490.229390] netdevsim netdevsim474 eni474np1: renamed from eth0
[  490.229885] netdevsim netdevsim546 eni546np1: renamed from eth1
[  490.323819] Could not find device with ifindex 2000 in netnsfd 11
[  490.323971] Could not find netns with fd: 2000
[  490.324076] Cannot link a netdevsim to itself
[  490.324198] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).