[ 1306.704861][T12849] netdevsim netdevsim336 eni336np1: renamed from eth0
[ 1306.838968][T12848] netdevsim netdevsim667 eni667np1: renamed from eth1
[ 1309.321670][T12836] Could not find device with ifindex 2000 in netnsfd 11
[ 1309.324022][T12836] Could not find netns with fd: 2000
[ 1309.324928][T12836] Cannot link a netdevsim to itself
[ 1309.326012][T12836] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).