[  523.359320] netdevsim netdevsim484 eni484np1: renamed from eth0
[  523.456778] netdevsim netdevsim617 eni617np1: renamed from eth1
[  523.696823] Could not find device with ifindex 2000 in netnsfd 11
[  523.697041] Could not find netns with fd: 2000
[  523.697161] Cannot link a netdevsim to itself
[  523.697299] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).