[  455.276550] netdevsim netdevsim353 eni353np1: renamed from eth0
[  455.277009] netdevsim netdevsim640 eni640np1: renamed from eth1
[  455.366347] Could not find device with ifindex 2000 in netnsfd 11
[  455.366451] Could not find netns with fd: 2000
[  455.366497] Cannot link a netdevsim to itself
[  455.366547] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).