[  456.455807] netdevsim netdevsim295 eni295np1: renamed from eth0
[  456.457128] netdevsim netdevsim763 eni763np1: renamed from eth1
[  456.543052] Could not find device with ifindex 2000 in netnsfd 11
[  456.543193] Could not find netns with fd: 2000
[  456.543278] Cannot link a netdevsim to itself
[  456.543361] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).