NetworkStats measurement type should be valid for ResourceMapping, Resource, or Interface objects

[chaos@bbn.com]

The network_stats measurement should be valid for any of a ResourceMapping object (a sliver on a resource), an Interface object (an interface on a resource), or a Resource object (total measurements for a resource, not broken down by sliver or interface).

When i try to attach NetworkStats to a vmserver resource, the code:

   for hostname in workers.keys():
      network_stats = gmoc.NetworkStats()
      wstats = {}
      for stat_type in ['rx_bps', 'tx_bps', 'rx_pps', 'tx_pps']:
        wstats[stat_type] = worker_traffic[hostname][stat_type] 
      network_stats.addData(worker_traffic[hostname]['check_time'], wstats)
      workers[hostname].addMeasurement(network_stats)

yields:

Error: Measurement type 'network_stats' is not valid for Resource objects.