[  509.380567] netdevsim netdevsim409 eni409np1: renamed from eth0
[  509.477860] netdevsim netdevsim546 eni546np1: renamed from eth1
[  509.685448] Could not find device with ifindex 2000 in netnsfd 11
[  509.685607] Could not find netns with fd: 2000
[  509.685682] Cannot link a netdevsim to itself
[  509.685769] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).