[ 1275.507801][T12849] netdevsim netdevsim749 eni749np1: renamed from eth1
[ 1275.654230][T12852] netdevsim netdevsim301 eni301np1: renamed from eth0
[ 1278.172914][T12840] Could not find device with ifindex 2000 in netnsfd 11
[ 1278.176102][T12840] Could not find netns with fd: 2000
[ 1278.177563][T12840] Cannot link a netdevsim to itself
[ 1278.179381][T12840] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).