[ 1030.203727][T12647] netdevsim netdevsim540 eni540np1: renamed from eth1
[ 1030.210206][T12648] netdevsim netdevsim306 eni306np1: renamed from eth0
[ 1032.114475][T12724] Could not find device with ifindex 2000 in netnsfd 11
[ 1032.115534][T12724] Could not find netns with fd: 2000
[ 1032.116234][T12724] Cannot link a netdevsim to itself
[ 1032.117047][T12724] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).