[  769.428180][T14746] netdevsim netdevsim309 eni309np1: renamed from eth0
[  769.461511][T14748] netdevsim netdevsim549 eni549np1: renamed from eth1
[  770.063185][T14734] Could not find device with ifindex 2000 in netnsfd 11
[  770.063721][T14734] Could not find netns with fd: 2000
[  770.064091][T14734] Cannot link a netdevsim to itself
[  770.064474][T14734] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).