[  527.126524] netdevsim netdevsim633 eni633np1: renamed from eth1
[  527.223104] netdevsim netdevsim510 eni510np1: renamed from eth0
[  527.481337] Could not find device with ifindex 2000 in netnsfd 11
[  527.481533] Could not find netns with fd: 2000
[  527.481632] Cannot link a netdevsim to itself
[  527.481766] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).