[  841.449238][T14754] netdevsim netdevsim283 eni283np1: renamed from eth0
[  841.472161][T14756] netdevsim netdevsim555 eni555np1: renamed from eth1
[  842.080277][T14742] Could not find device with ifindex 2000 in netnsfd 11
[  842.081180][T14742] Could not find netns with fd: 2000
[  842.081657][T14742] Cannot link a netdevsim to itself
[  842.082204][T14742] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).