[  795.987643][T15643] netdevsim netdevsim420 eni420np1: renamed from eth0
[  796.001120][T15641] netdevsim netdevsim689 eni689np1: renamed from eth1
[  796.622231][T15630] Could not find device with ifindex 2000 in netnsfd 11
[  796.622959][T15630] Could not find netns with fd: 2000
[  796.623502][T15630] Cannot link a netdevsim to itself
[  796.624133][T15630] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).