[  521.062691] netdevsim netdevsim341 eni341np1: renamed from eth0
[  521.158528] netdevsim netdevsim756 eni756np1: renamed from eth1
[  521.421079] Could not find device with ifindex 2000 in netnsfd 11
[  521.421362] Could not find netns with fd: 2000
[  521.421505] Cannot link a netdevsim to itself
[  521.421662] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).