proc ApplyTrafficNgpfHlt {} {
    set cmd_status [::ixiangpf::traffic_control -action apply]
}

  # $ixnHLT(HANDLE,//topology:<1>/deviceGroup:<1>/ethernet:<1>/ipv4:<1>/ospfv2:<1>)

    puts "\nGetOspfAggregatedStatsNgpfHlt ..."
    set ospfStats [::ixiangpf::emulation_ospf_info \
		       -handle $ospfEmulationHandle \
		       -mode aggregate_stats \
		      ]
    if {[keylget ospfStats status] != $::SUCCESS} {
	puts "\nError GetOspfAggregatedStatsNgpfHlt: $ospfStats"
	return 1
    }
    
    return $ospfStats
}