Interface Reports › Interface Report Types › Top N Autonomous System Numbers Report

Top N Autonomous System Numbers Report

A Top N AS report provides AS (Autonomous System) Next Hop data, which provides high-level summaries of total volume and rate statistics for each AS number on a particular interface. This type of reporting is not used primarily for troubleshooting, but it is valuable for managing network routes efficiently. This insight helps service providers control costs by comparing traffic usage through transit networks versus traffic through networks with peer agreements.

To display a Top N AS Numbers report, start from an interface report.

Follow these steps:

1. Display an interface report in either of the following ways:
   • Locate and click an interface on the Interfaces page.
   • Click an interface link in an existing view--for example, on the Enterprise Overview page.
2. Select AS Numbers from the report type menu at the top-left corner of the page.
3. Make sure that the Top N AS Numbers link appears next to the report type setting.

   The report page is updated to show AS trend charts by default. The report includes AS Numbers data views for each of the following metrics:

   • Inbound data
   • Outbound data
   • From data
   • To data
4. (Optional) Change the data presentation type and the data measurement type by using the Presentation options.
   • Stacked Trend Chart (default setting) of Rate, Volume, or Utilization data
   • Trend Chart of Rate, Volume, or Utilization data
   • Pie Chart
   • Summary Table of Rate, Volume, or Utilization data

   Each option displays views of data that is inbound (In) and outbound (Out) with respect to the interface and data that is coming from (From) the previous hop and going to (To) the next hop.

5. (Optional) Change the reporting period: Open the Timeframe dialog by clicking the timeframe link.

   The reporting period is the most recent 24-hour period by default.