Viewing Reports : Viewing Bandwidth Optimization Reports
  
Viewing Bandwidth Optimization Reports
The Bandwidth Optimization report summarizes the overall inbound and outbound bandwidth improvements for your network. You can create reports according to the time period, of your choice, application, and type of traffic.
For details about operating report controls, see Overview.
Note: The values in the data reduction graph of the Bandwidth Optimization report for WAN and LAN Throughput are divided by 1000 rather than 1024. Thus, the calculated values for data reduction will be slightly higher than you might expect.
The Bandwidth Optimization report includes this table of statistics that describe bandwidth activity for the time period you specify.
Data Series
Description
Data Reduction %
Displays the peak and total decrease of data transmitted over the WAN, according to this calculation:
(Data In – Data Out)/(Data In)
Displays the capacity increase x-factor below the peak and total data reduction percentages.
WAN and LAN Throughput
Depending on that direction you select, specifies one of the following:
•  Bi-Directional - traffic flowing in both directions
•  WAN-to-LAN - inbound traffic flowing from the WAN to the LAN
•  LAN-to-WAN - outbound traffic flowing from the LAN to the WAN
The navigator shadows the data reduction series.
What This Report Tells You
The Bandwidth Optimization report answers these questions:
•  How much data reduction has occurred?
•  How much data was removed from the WAN link?
•  How much data was sent/received through the LAN/WAN ports?
About Report Graphs
Use the mouse to hover over a specific data point to see the y values and exact time stamp were in relation to peaks.
About Report Data
The Riverbed system reports on performance for periods up to one month. However, due to performance and disk space considerations, data representation in reports for periods longer than the last 5 minutes are interpolated from aggregate data points. The Optimized Throughput report displays the following data granularities:
•  Last 1 hour's worth of data is available at 10-second granularity.
•  Last 1 day's worth of data is available at 5-minute granularity.
•  Last 1 week's worth of data is available at 1-hour granularity.
•  Last 1 month's worth of data is available at 2-hour granularity.
For detailed information about data grouping, see Data Grouping.
To view a Bandwidth Optimization report
1. Choose Reports > Optimization: Bandwidth Optimization to display the Bandwidth Optimization page.
Figure: Bandwidth Optimization Report
2. Use the controls to customize the report as described in this table.
Control
Description
Time Interval
Select a report time interval of 1 hour (1h), 1 day (1d), 1 week (1w), 30 days (30d), yesterday, last week, or last month.
Time intervals that do not apply to a particular report are dimmed.
For a custom time interval, enter the start time and end time using the format YYYY/MM/DD HH:MM:SS.
Because the system aggregates data on the hour, request hourly time intervals. For example, setting a time interval to 08:30:00 to 09:30:00 from 2 days ago does not create a data display, whereas setting a time interval to 08:00:00 to 09:00:00 from 2 days ago will display data.
When you request a custom time interval to view data beyond the aggregated granularity, the data is not visible because the system is no longer storing the data. For example, the following custom time intervals do not return data because the system automatically aggregates data older than 7 days into 2-hour data points:
•  Setting a 1-hour time period that occurred 2 weeks ago.
•  Setting a 75-minute time period that occurred more than 1 week ago.
You can quickly see the newest data and see data points as they are added to the chart dynamically. To display the newest data, click Show newest data.
Port
Select a port or select All to view all ports from the drop-down list. The list appends the port name to the number where available.
Direction
Select a traffic direction (Bi-Directional, WAN to LAN, or LAN to WAN) from the drop-down list.
Group
Select the group from the drop-down list.
Note: For detailed information about exporting statistics, see Exporting Statistics.