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Use the Top Interface Discard Rate view to determine places where capacity problems may be occurring. Discards typically occur when interface buffers no longer have the capacity to store packets (because, for example, buffer memory is exhausted). Buffer congestion often indicates that the rate at which packets are arriving at the interface exceeds its transmission rate. Discards frequently occur in bursts. Elevated discard rates may be the result of either microcongestion or chronic congestion issues.
Use this view to identify the interfaces with the highest discard rates for inbound and outbound traffic for the selected device. Acceptable discard rates depend on the applications being served, the transmission protocols, and the SLAs established within your organization.
The Top Interface Discard Rate view includes interfaces in the selected managed item with the highest total discard rates during the selected time period. Color-coded bar charts indicate severity.
Click the name of an item to see more data from that item.
By default, the Top Interface Discard Rate view contains the following information:
Identifies the device whose data is reflected in the view. 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 average rate of packet discards, expressed as a percentage of inbound traffic on the interface during the reporting period.
Is the average rate of packet discards, expressed as a percentage of outbound traffic on the interface during the reporting period.
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