[  473.361094] netdevsim netdevsim393 eni393np1: renamed from eth0
[  473.361529] netdevsim netdevsim624 eni624np1: renamed from eth1
[  473.443548] Could not find device with ifindex 2000 in netnsfd 11
[  473.443631] Could not find netns with fd: 2000
[  473.443677] Cannot link a netdevsim to itself
[  473.443738] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).