[  509.417386] netdevsim netdevsim698 eni698np1: renamed from eth1
[  509.515569] netdevsim netdevsim456 eni456np1: renamed from eth0
[  509.712718] Could not find device with ifindex 2000 in netnsfd 11
[  509.712869] Could not find netns with fd: 2000
[  509.712944] Cannot link a netdevsim to itself
[  509.713031] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).