[  483.164970] netdevsim netdevsim687 eni687np1: renamed from eth1
[  483.265634] netdevsim netdevsim409 eni409np1: renamed from eth0
[  483.607878] Could not find device with ifindex 2000 in netnsfd 11
[  483.608016] Could not find netns with fd: 2000
[  483.608084] Cannot link a netdevsim to itself
[  483.608173] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).