[  519.960921] netdevsim netdevsim532 eni532np1: renamed from eth1
[  520.060483] netdevsim netdevsim337 eni337np1: renamed from eth0
[  520.310142] Could not find device with ifindex 2000 in netnsfd 11
[  520.310322] Could not find netns with fd: 2000
[  520.310407] Cannot link a netdevsim to itself
[  520.310503] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).