[  457.301768] netdevsim netdevsim598 eni598np1: renamed from eth1
[  457.302142] netdevsim netdevsim321 eni321np1: renamed from eth0
[  457.403577] Could not find device with ifindex 2000 in netnsfd 11
[  457.403703] Could not find netns with fd: 2000
[  457.403767] Cannot link a netdevsim to itself
[  457.403828] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).