[  516.800123] netdevsim netdevsim328 eni328np1: renamed from eth0
[  516.897707] netdevsim netdevsim751 eni751np1: renamed from eth1
[  517.133556] Could not find device with ifindex 2000 in netnsfd 11
[  517.133814] Could not find netns with fd: 2000
[  517.133929] Cannot link a netdevsim to itself
[  517.134063] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).