[  537.029703] netdevsim netdevsim388 eni388np1: renamed from eth0
[  537.131389] netdevsim netdevsim733 eni733np1: renamed from eth1
[  537.516811] Could not find device with ifindex 2000 in netnsfd 11
[  537.516955] Could not find netns with fd: 2000
[  537.517032] Cannot link a netdevsim to itself
[  537.517139] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).