[  473.327505] netdevsim netdevsim542 eni542np1: renamed from eth1
[  473.328279] netdevsim netdevsim341 eni341np1: renamed from eth0
[  473.406326] Could not find device with ifindex 2000 in netnsfd 11
[  473.406426] Could not find netns with fd: 2000
[  473.406481] Cannot link a netdevsim to itself
[  473.406550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).