[  472.967077] netdevsim netdevsim453 eni453np1: renamed from eth0
[  472.967929] netdevsim netdevsim555 eni555np1: renamed from eth1
[  473.048832] Could not find device with ifindex 2000 in netnsfd 11
[  473.048978] Could not find netns with fd: 2000
[  473.049079] Cannot link a netdevsim to itself
[  473.049193] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).