[  485.341000] netdevsim netdevsim390 eni390np1: renamed from eth0
[  485.341339] netdevsim netdevsim549 eni549np1: renamed from eth1
[  485.444169] Could not find device with ifindex 2000 in netnsfd 11
[  485.444260] Could not find netns with fd: 2000
[  485.444302] Cannot link a netdevsim to itself
[  485.444350] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).