[  526.955869] netdevsim netdevsim403 eni403np1: renamed from eth0
[  527.052901] netdevsim netdevsim555 eni555np1: renamed from eth1
[  527.314342] Could not find device with ifindex 2000 in netnsfd 11
[  527.314486] Could not find netns with fd: 2000
[  527.314563] Cannot link a netdevsim to itself
[  527.314654] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).