[  473.556043] netdevsim netdevsim511 eni511np1: renamed from eth0
[  473.556635] netdevsim netdevsim518 eni518np1: renamed from eth1
[  473.638561] Could not find device with ifindex 2000 in netnsfd 11
[  473.638698] Could not find netns with fd: 2000
[  473.638807] Cannot link a netdevsim to itself
[  473.638932] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).