[ 1020.108058][T12068] netdevsim netdevsim431 eni431np1: renamed from eth0
[ 1020.110199][T12064] netdevsim netdevsim603 eni603np1: renamed from eth1
[ 1022.026591][T12552] Could not find device with ifindex 2000 in netnsfd 11
[ 1022.027606][T12552] Could not find netns with fd: 2000
[ 1022.028275][T12552] Cannot link a netdevsim to itself
[ 1022.029067][T12552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).