[  623.503298][ T9989] netdevsim netdevsim405 eni405np1: renamed from eth0
[  623.515117][ T9990] netdevsim netdevsim745 eni745np1: renamed from eth1
[  624.130700][ T9978] Could not find device with ifindex 2000 in netnsfd 11
[  624.131292][ T9978] Could not find netns with fd: 2000
[  624.131741][ T9978] Cannot link a netdevsim to itself
[  624.132257][ T9978] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).