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Viewing Collected Data

  1. Close the Traffic Collection Manager by clicking on the X symbol at the upper-right corner of the window.

  2. On the Live Network topology window, click on Live Util legend to see the fraction of the link that is actually being utilized in Layer 3. You can scroll the bars in between colors on the Live Util tab to change the legend.

  3. Right-click on a link and select Live Interface Loadto view the traffic data. Note that two charts will be displayed, one for each node/interface on the link. Each chart has an A->Z and Z->A tab. In this way, you can compare the A->Z results on one end of the link with the Z->A results on the other end of the link. Options are also available from this window to view the CoS and multicast traffic, in case CoS or multicast traffic collection was configured in the Traffic Collection Manager.

  4. If there are MPLS-TE tunnels in the network, right-click on a link and select Interface vs Tunnelto compare the traffic on the interface to the traffic on the tunnel, which should be similar.

  5. You can press the Tunnel layer button on the main menu bar to see the tunnel traffic live utilization. Press Layer 3 to see the interface traffic live utilization.

    Figure 1: Switching Between Tunnel Layer and Layer 3
    Switching Between Tunnel Layer and Layer 3
  6. Select Network > Elements >Links.Right-click the table header and select Table Optionsto add live network utilization and bandwidth information items (for example, Live_L2_Util_AZ, Live_L3_Util_AZ, Live_L2_BW_AZ, Live_L3_Util_AZ, and likewise for the opposite direction).

  7. Right-click on a link to see a Traffic Charts menu with a number of options for traffic charts.

  8. Select Network > Elements >Tunnels.Right-click the table header and select Table Options to add the column Traf to view traffic bandwidth.

  9. To see a traffic record, go to Performance > Traffic Charts.

    • Select Total Network Tunnel Traffic to get the total tunnel traffic data.

    • Select Total Router to Router Tunnel Traffic to get the total tunnel traffic between two routers. Then click the source and destination router on the map.

    • Select Total Router Tunnel Trafficto get the total ingress and egress tunnel traffic for a router. Then click the router on the map.

    • See Figure 2 for a sample chart of Total Network Tunnel Traffic

    • To zoom in, click and drag across the data. Once zoomed in, the bottom scrollbar will become active and you can scroll the data. The Reset Zoom icon will also be activated, which you can use to reset to the original zoom level.

      Figure 2: Daily Tunnel Traffic Data for 6/17/2002
      Daily Tunnel Traffic Data for 6/17/2002

      Note that the starting date can be changed using the first calendar icon (“Settings” icon), and the range (daily, weekly, monthly, or yearly) can be changed using the second calendar icon.

      Figure 3: Choose a Date Window
      Choose a Date Window
      Figure 4: Choose a Date Range (Daily, Weekly, Monthly, or Yearly)
      Choose a Date Range (Daily, Weekly, Monthly, or Yearly)

Viewing Through the Web Browser

You can also view traffic data via the IP/MPLSView Web interface. To access the IP/MPLSView Web interface from the IP/MPLSView application, select File > Launch Web.

Alternatively, to directly access the web, open your web browser and type in the address http://server_host:8091, replacing server_host by the IP/MPLSView server’s IP address or hostname. You should log in with the user account and password provided to you by your administrator. Once logged in, you can view charts for router to router traffic, network tunnel traffic, interface traffic, and individual tunnel traffic. These can be accessed under the menu for Performance Management.

Viewing the Traffic Replay

The traffic data collected using the live Traffic Collection manager can also be replayed.

  1. Select the Utilization Legends > Interface CoS Util.

    Figure 5: Interface CoS Util Legend
    Interface CoS Util Legend
  2. Alternatively, if you wish to query a different time range, click the Offline button. Next, select Traffic > Traffic Load. This will bring up the Load/Util window displayed in Figure 133.

    Figure 6: Traffic Replay in Offline Mode (Options May Vary)
    Traffic Replay in Offline Mode (Options May Vary)
  3. In Layer 3 mode, you will see an Interface radio button. In Tunnel layer mode, you will see a Tunnel radio button instead. Click on the Interface/Tunnel radio buttons. The bottom panel will become enabled, allowing you to select the period of time to begin the replay of traffic data. In this panel, you must specify the Start From date as well as an Interval time period. Then, click the Fetch button. This will fetch the results from the Traffic Collection database and load the traffic data into the topology map for display. Note that the aggregation statistic performed on the data is based on computation of the Average.

  4. Clicking on the Run button now allows you to view the traffic utilization on the topology map over 24 consecutive intervals, starting from the starting date and time, and spaced out by 24 Interval time intervals. If the online traffic data collection was performed with 5-minute samples, and in the offline Load/Util replay window in Figure 133 you specify an interval of 30 Minutes, then the results displayed for each 30 minute interval will be the strict average of the corresponding six 5-minute intervals. Note that the raw data at the specified interval (for example, 5 minute interval) is only stored for a given period of time, which can be configured in the agg.xml file as explained in Traffic Data Archival and Cleanup. After that period of time, the data is aggregated into one data point per day, which can be viewed through the historical web charts.

  5. You can also view per-link traffic statistics by right clicking on a particular link on the topology map. In the popup menu in Layer 3, select Traffic Load > Measured Interface Traffic.In the popup menu in the Tunnel Layer, select Traffic Load > Tunnel Traffic on Link. This will bring up a 24-period barchart displaying the interface/tunnel traffic utilization, respectively, on either direction of that link over the 24 intervals.

  6. To view the trafficload file, save the network to a different directory from File > Save Network... Then navigate to that directory from the File Manager and view the and interfaceTraffic.out.x files for interface traffic or the T_trafficload.x for tunnel traffic.

    For more information about the other options available in the Load/Util window, please consult “The Traffic Menu” chapter of the IP/MPLSView Java-based Graphical User Interface Reference.

Create a 24-Hour Trafficload File

To create a 24-hour traffic load file for offline analysis, use the Traffic > Traffic Aggregation window. For more information, see Traffic Aggregation.

Traffic Data Collector Logs

Logs for the Traffic Data Collector can be viewed under /u/wandl/log/.

  • dgs.log.n for logging output

  • dgs.msg for exceptions

  • dgsMSG.log.n for a full trace

  • dgsTASK.log.n for data flush info

  • dgsDB.log.n for database logs

Log levels can be configured in /u/wandl/db/confis/dgs.xml