[  809.429309][T15781] netdevsim netdevsim450 eni450np1: renamed from eth0
[  809.446506][T15780] netdevsim netdevsim727 eni727np1: renamed from eth1
[  810.037753][T15768] Could not find device with ifindex 2000 in netnsfd 11
[  810.038387][T15768] Could not find netns with fd: 2000
[  810.038869][T15768] Cannot link a netdevsim to itself
[  810.039415][T15768] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).