[  526.738775] netdevsim netdevsim511 eni511np1: renamed from eth0
[  526.835623] netdevsim netdevsim528 eni528np1: renamed from eth1
[  527.104520] Could not find device with ifindex 2000 in netnsfd 11
[  527.104752] Could not find netns with fd: 2000
[  527.104864] Cannot link a netdevsim to itself
[  527.105010] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).