[  455.981402] netdevsim netdevsim677 eni677np1: renamed from eth1
[  455.982062] netdevsim netdevsim431 eni431np1: renamed from eth0
[  456.068094] Could not find device with ifindex 2000 in netnsfd 11
[  456.068261] Could not find netns with fd: 2000
[  456.068368] Cannot link a netdevsim to itself
[  456.068488] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).