[  473.411614] netdevsim netdevsim490 eni490np1: renamed from eth0
[  473.415014] netdevsim netdevsim593 eni593np1: renamed from eth0
[  473.490465] Could not find device with ifindex 2000 in netnsfd 11
[  473.490536] Could not find netns with fd: 2000
[  473.490588] Cannot link a netdevsim to itself
[  473.490636] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).