[  482.724288] netdevsim netdevsim411 eni411np1: renamed from eth0
[  482.824691] netdevsim netdevsim521 eni521np1: renamed from eth1
[  483.180807] Could not find device with ifindex 2000 in netnsfd 11
[  483.180936] Could not find netns with fd: 2000
[  483.180999] Cannot link a netdevsim to itself
[  483.181084] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).