[  485.776346] netdevsim netdevsim315 eni315np1: renamed from eth0
[  485.872588] netdevsim netdevsim573 eni573np1: renamed from eth1
[  486.097311] Could not find device with ifindex 2000 in netnsfd 11
[  486.097658] Could not find netns with fd: 2000
[  486.097757] Cannot link a netdevsim to itself
[  486.097867] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).