Interface Graphs cisco

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.