The Top Interface Utilization - In trend/table chart lets you quickly determine which device interfaces handled the highest traffic load during a selected time frame. By default, it shows the 10 device interfaces with the highest average utilization, shown as a percentage of interface capacity.
Top Interface Utilization is shown in both the outbound and inbound directions for the following reasons:
The asymmetry depends on the location of the device or interface and the applications in use. For example, a data center services client-server application traffic. The WAN router interfaces on the data center side typically transmit much more data than they receive. By contrast, the router interfaces on the remote office side receive much more data than they transmit. The asymmetry results from the behavior of client-server application traffic: small requests travel from the client computer to the data center, while large responses are transmitted from the data center to the client computers.
The Top Interface Utilization - In view shows the top average interface utilization levels during a selected time frame. The view contains a trend chart and an accompanying table that displays data for individual processors.
The trend chart plots average utilization values from the indicated device. The table view provides bar charts of interface utilization values, color-coded to indicate severity. In the table, the average utilization levels during the selected time frame are broken out by individual interface.
Click the name of an item to see more data from that item.
By default, the Top Interface Utilization - In view includes the following information:
Identifies the managed item that was the source of the performance data. If an administrator defined an alias for the device item, the alias is displayed. Otherwise, the discovered device name is displayed.
Is the name of the interface.
Is the inbound utilization of the interface, expressed as the percentage of interface capacity.
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