[  527.233851] netdevsim netdevsim335 eni335np1: renamed from eth0
[  527.331036] netdevsim netdevsim675 eni675np1: renamed from eth1
[  527.551728] Could not find device with ifindex 2000 in netnsfd 11
[  527.551961] Could not find netns with fd: 2000
[  527.552080] Cannot link a netdevsim to itself
[  527.552222] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).