[  515.219805] netdevsim netdevsim277 eni277np1: renamed from eth0
[  515.318151] netdevsim netdevsim763 eni763np1: renamed from eth1
[  515.531590] Could not find device with ifindex 2000 in netnsfd 11
[  515.531785] Could not find netns with fd: 2000
[  515.531879] Cannot link a netdevsim to itself
[  515.531988] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).