[  517.368336] netdevsim netdevsim335 eni335np1: renamed from eth0
[  517.465999] netdevsim netdevsim547 eni547np1: renamed from eth1
[  517.720579] Could not find device with ifindex 2000 in netnsfd 11
[  517.720745] Could not find netns with fd: 2000
[  517.720817] Cannot link a netdevsim to itself
[  517.720906] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).