[  457.056777] netdevsim netdevsim411 eni411np1: renamed from eth0
[  457.057375] netdevsim netdevsim755 eni755np1: renamed from eth1
[  457.159857] Could not find device with ifindex 2000 in netnsfd 11
[  457.159959] Could not find netns with fd: 2000
[  457.160004] Cannot link a netdevsim to itself
[  457.160053] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).