Interface Graphs
The final class of graphs accessible from the Ecology tab in PDM is
Interface Graphs. A subcategory apery anniversary alive interface on the PIX
firewall appears in the Interface Graphs category. From anniversary specific interface
subcategory, 10 graphs are available:
Packet Rates
Bit Rates
Byte Counts
Packet Counts
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Figure 9.86 IDS Graphs
PIX Device Manager • Chapter 9 545
Absorber Resources
Packet Errors
Miscellaneous (Received Broadcasts)
Blow Counts
Ascribe Queue
Output Queue
Each of these graphs can be badly accessible in troubleshooting performance
issues or misconfigurations such as bifold mismatches, concrete cabling
issues, or anchorage agreement problems.
For instance, if you accept you are experiencing cessation with cartage passing
through the PIX firewall, you could assemble a set of graphs such as the one
shown in Figure 9.87.
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Figure 9.87 Interface Graphs
546 Chapter 9 • PIX Device Manager
With this set of graphs, you can visually characterize the absolute cardinal of collisions,
buffer ability overruns, ascribe chain blocks used, and assorted packet errors for
the accomplished bristles days. If you are seeing aerial absorber overruns and blow counts, the
interfaces on the PIX ability be saturated with traffic. Perhaps the PIX anamnesis is
at 100 percent utilization. Alternatively, aerial packet errors for assorted attributes
such as runts or ascribe errors could arresting concrete cabling issues.
To verify accessible causes, you could use this set of graphs with additional
graphs such as those depicted in Figure 9.88.
This aggregate of graphs shows interface byte counts for both interfaces
as able-bodied as CPU and anamnesis appliance over a aeon of bristles days.These graphs,
in aggregate with the ahead apparent interface graphs, can advice diagnose
various problems associated with PIX performance.
You accept baffled the ability of PIX monitoring, so now let’s attending at some
connectivity ascendancy mechanisms accessible through the Ecology tab and the
PIX CLI.