[  493.854079] netdevsim netdevsim264 eni264np1: renamed from eth0
[  493.951423] netdevsim netdevsim704 eni704np1: renamed from eth1
[  494.284931] Could not find device with ifindex 2000 in netnsfd 11
[  494.285310] Could not find netns with fd: 2000
[  494.285424] Cannot link a netdevsim to itself
[  494.285527] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).