[  473.434747] netdevsim netdevsim280 eni280np1: renamed from eth0
[  473.435292] netdevsim netdevsim647 eni647np1: renamed from eth1
[  473.518206] Could not find device with ifindex 2000 in netnsfd 11
[  473.518299] Could not find netns with fd: 2000
[  473.518353] Cannot link a netdevsim to itself
[  473.518414] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).