[  483.484818] netdevsim netdevsim506 eni506np1: renamed from eth0
[  483.581146] netdevsim netdevsim617 eni617np1: renamed from eth1
[  483.815449] Could not find device with ifindex 2000 in netnsfd 11
[  483.815675] Could not find netns with fd: 2000
[  483.815767] Cannot link a netdevsim to itself
[  483.815884] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).