[ 1243.351828][T12790] netdevsim netdevsim492 eni492np1: renamed from eth0
[ 1243.375814][T12788] netdevsim netdevsim662 eni662np1: renamed from eth1
[ 1246.141655][T12778] Could not find device with ifindex 2000 in netnsfd 11
[ 1246.143381][T12778] Could not find netns with fd: 2000
[ 1246.145516][T12778] Cannot link a netdevsim to itself
[ 1246.147315][T12778] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).