[  457.553304] netdevsim netdevsim323 eni323np1: renamed from eth0
[  457.554305] netdevsim netdevsim648 eni648np1: renamed from eth1
[  457.642735] Could not find device with ifindex 2000 in netnsfd 11
[  457.642864] Could not find netns with fd: 2000
[  457.642919] Cannot link a netdevsim to itself
[  457.642980] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).