[  473.684009] netdevsim netdevsim474 eni474np1: renamed from eth0
[  473.686408] netdevsim netdevsim624 eni624np1: renamed from eth1
[  473.763272] Could not find device with ifindex 2000 in netnsfd 11
[  473.763406] Could not find netns with fd: 2000
[  473.763513] Cannot link a netdevsim to itself
[  473.763625] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).