[  456.922538] netdevsim netdevsim451 eni451np1: renamed from eth0
[  456.923701] netdevsim netdevsim651 eni651np1: renamed from eth0
[  457.021891] Could not find device with ifindex 2000 in netnsfd 11
[  457.021997] Could not find netns with fd: 2000
[  457.022060] Cannot link a netdevsim to itself
[  457.022119] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).