[  680.593262][T14456] netdevsim netdevsim400 eni400np1: renamed from eth0
[  680.596191][T14458] netdevsim netdevsim590 eni590np1: renamed from eth1
[  681.024341][T14444] Could not find device with ifindex 2000 in netnsfd 11
[  681.024612][T14444] Could not find netns with fd: 2000
[  681.024798][T14444] Cannot link a netdevsim to itself
[  681.025046][T14444] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).