[  509.479023] netdevsim netdevsim685 eni685np1: renamed from eth1
[  509.577625] netdevsim netdevsim277 eni277np1: renamed from eth0
[  509.785273] Could not find device with ifindex 2000 in netnsfd 11
[  509.785427] Could not find netns with fd: 2000
[  509.785517] Cannot link a netdevsim to itself
[  509.785610] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).