[  484.037573] netdevsim netdevsim619 eni619np1: renamed from eth1
[  484.138526] netdevsim netdevsim324 eni324np1: renamed from eth0
[  484.501891] Could not find device with ifindex 2000 in netnsfd 11
[  484.502080] Could not find netns with fd: 2000
[  484.502192] Cannot link a netdevsim to itself
[  484.502334] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).