[  777.200361][T14747] netdevsim netdevsim477 eni477np1: renamed from eth0
[  777.223098][T14749] netdevsim netdevsim654 eni654np1: renamed from eth1
[  777.800473][T14735] Could not find device with ifindex 2000 in netnsfd 11
[  777.801117][T14735] Could not find netns with fd: 2000
[  777.801580][T14735] Cannot link a netdevsim to itself
[  777.802085][T14735] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).