[  820.415396][T15807] netdevsim netdevsim437 eni437np1: renamed from eth0
[  820.432688][T15805] netdevsim netdevsim564 eni564np1: renamed from eth1
[  821.042134][T15794] Could not find device with ifindex 2000 in netnsfd 11
[  821.042813][T15794] Could not find netns with fd: 2000
[  821.043279][T15794] Cannot link a netdevsim to itself
[  821.044151][T15794] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).