[ 1235.397189][T12614] netdevsim netdevsim439 eni439np1: renamed from eth0
[ 1235.517634][T12612] netdevsim netdevsim550 eni550np1: renamed from eth1
[ 1238.088038][T12601] Could not find device with ifindex 2000 in netnsfd 11
[ 1238.089264][T12601] Could not find netns with fd: 2000
[ 1238.090208][T12601] Cannot link a netdevsim to itself
[ 1238.091323][T12601] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).