[  456.628164] netdevsim netdevsim402 eni402np1: renamed from eth0
[  456.628554] netdevsim netdevsim649 eni649np1: renamed from eth1
[  456.741269] Could not find device with ifindex 2000 in netnsfd 11
[  456.741436] Could not find netns with fd: 2000
[  456.741541] Cannot link a netdevsim to itself
[  456.741658] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).