[ 1243.250628][T11145] netdevsim netdevsim638 eni638np1: renamed from eth1
[ 1243.255838][T11146] netdevsim netdevsim305 eni305np1: renamed from eth0
[ 1246.898968][T11137] Could not find device with ifindex 2000 in netnsfd 11
[ 1246.899805][T11137] Could not find netns with fd: 2000
[ 1246.900476][T11137] Cannot link a netdevsim to itself
[ 1246.901701][T11137] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).