[  473.971842] netdevsim netdevsim326 eni326np1: renamed from eth0
[  473.972580] netdevsim netdevsim672 eni672np1: renamed from eth1
[  474.076228] Could not find device with ifindex 2000 in netnsfd 11
[  474.076355] Could not find netns with fd: 2000
[  474.076433] Cannot link a netdevsim to itself
[  474.076532] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).