[  520.548972] netdevsim netdevsim676 eni676np1: renamed from eth1
[  520.645860] netdevsim netdevsim262 eni262np1: renamed from eth0
[  520.900975] Could not find device with ifindex 2000 in netnsfd 11
[  520.901158] Could not find netns with fd: 2000
[  520.901251] Cannot link a netdevsim to itself
[  520.901346] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).