[ 1243.824863][T12792] netdevsim netdevsim639 eni639np1: renamed from eth1
[ 1243.914524][T12790] netdevsim netdevsim308 eni308np1: renamed from eth0
[ 1246.756510][T12778] Could not find device with ifindex 2000 in netnsfd 11
[ 1246.758319][T12778] Could not find netns with fd: 2000
[ 1246.759259][T12778] Cannot link a netdevsim to itself
[ 1246.760364][T12778] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).