[  537.461959][ T6497] netdevsim netdevsim496 eni496np1: renamed from eth0
[  537.584876][ T6495] netdevsim netdevsim678 eni678np1: renamed from eth1
[  540.144946][ T6485] Could not find device with ifindex 2000 in netnsfd 11
[  540.146140][ T6485] Could not find netns with fd: 2000
[  540.148107][ T6485] Cannot link a netdevsim to itself
[  540.149208][ T6485] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).