[  537.475468] netdevsim netdevsim355 eni355np1: renamed from eth0
[  537.576676] netdevsim netdevsim629 eni629np1: renamed from eth1
[  537.917986] Could not find device with ifindex 2000 in netnsfd 11
[  537.918142] Could not find netns with fd: 2000
[  537.918209] Cannot link a netdevsim to itself
[  537.918292] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).