[  477.532401] netdevsim netdevsim451 eni451np1: renamed from eth0
[  477.533368] netdevsim netdevsim689 eni689np1: renamed from eth1
[  477.633345] Could not find device with ifindex 2000 in netnsfd 11
[  477.633504] Could not find netns with fd: 2000
[  477.633621] Cannot link a netdevsim to itself
[  477.633758] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).