[  473.673214] netdevsim netdevsim354 eni354np1: renamed from eth0
[  473.674164] netdevsim netdevsim564 eni564np1: renamed from eth0
[  473.747328] Could not find device with ifindex 2000 in netnsfd 11
[  473.747419] Could not find netns with fd: 2000
[  473.747461] Cannot link a netdevsim to itself
[  473.747514] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).