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Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter 12 Starting Interface Configuration (ASA 5510 and Higher)
Monitoring Interfaces
should see that the first one is talking and wait. If you get a late collision, a device is jumping
in and trying to send the packet on the Ethernet while the ASA is partly finished sending the
packet. The ASA does not resend the packet, because it may have freed the buffers that held the
first part of the packet. This is not a real problem because networking protocols are designed to
cope with collisions by resending packets. However, late collisions indicate a problem exists in
your network. Common problems are large repeated networks and Ethernet networks running
beyond the specification.
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Input Queue—Shows the number of packets in the input queue, the current and the maximum,
including the following statistics:
Hardware Input Queue—The number of packets in the hardware queue.
Software Input Queue—The number of packets in the software queue.
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Output Queue—Shows the number of packets in the output queue, the current and the
maximum, including the following statistics:
Hardware Output Queue—The number of packets in the hardware queue.
Software Output Queue—The number of packets in the software queue.
• Add—Adds the selected statistic type to the selected graph window.
• Remove—Removes the selected statistic type from the selected graph window. This button name
changes to Delete if the item you are removing was added from another panel, and is not being
returned to the Available Graphs pane.
• Show Graphs—Shows the graph window name to which you want to add a statistic type. If you have
a graph window already open, a new graph window is listed by default. If you want to add a statistic
type to an already open graph, choose the open graph window name. The statistics already included
on the graph are shown in the Selected Graphs pane, to which you can add additional types. Graph
windows are named for ASDM followed by the interface IP address and the name “Graph”.
Subsequent graphs are named “Graph (2)” and so on.
• Selected Graphs—Shows the statistic types you want to show in the selected graph window. You an
include up to four types.
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Show Graphs—Shows the graph window or updates the graph with additional statistic types if
added.
Graph/Table
The Monitoring > Interfaces > Interface Graphs > Graph/Table window shows a graph for the selected
statistics. The Graph window can show up to four graphs and tables at a time. By default, the graph or
table displays the real-time statistics. If you enable History Metrics (see the “Enabling History Metrics”
section on page 3-30), you can view statistics for past time periods.
Fields
• View—Sets the time period for the graph or table. To view any time period other than real-time,
enable History Metrics (see the “Enabling History Metrics” section on page 3-30). The data is
updated according to the specification of the following options:
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Real-time, data every 10 sec
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Last 10 minutes, data every 10 sec
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Last 60 minutes, data every 1 min
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Last 12 hours, data every 12 min