[  485.588636] netdevsim netdevsim343 eni343np1: renamed from eth0
[  485.589447] netdevsim netdevsim640 eni640np1: renamed from eth1
[  485.672002] Could not find device with ifindex 2000 in netnsfd 11
[  485.672098] Could not find netns with fd: 2000
[  485.672142] Cannot link a netdevsim to itself
[  485.672199] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).