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The TrafficDirector application includes an Application Monitor for viewing application-level protocol activity on a network segment for multiple domains in a specified agent, agent group, or Frame Relay agent.
The following topics describe how you use Application Monitor:
You use Application Monitor to gauge how closely the network activity of the protocols operating at the TrafficDirector application layer (layers four through seven of the OSI model) compare with your expectations for efficient use of resources.
For example, if you expect to see very little activity for the SNMP protocol, and it appears that SNMP is one of the protocols with the highest utilization, this indicates a need for further investigation.
Application Monitor is a real-time graphical display application. Invoked for a specific domain group from the Application mode of the TrafficDirector application, it lets you observe current application layer conditions on a network segment.
You can use Application Monitor for an agent, agent group, roved switch port, roved Fast Ethernet Channel (FEC), roved VLAN, or Frame Relay Agent and data-link connection identifier (DLCI).
Step 1 Click Application to display the corresponding TrafficDirector window.
Step 2 Click Agent, Agent Group, or Frame Relay.
Step 3 Do one of the following:
Step 4 Select a Domain Group from those names listed under the Domain Group heading (lower portion of window).
Step 5 Click the Application Monitor icon.
The Application Monitor window opens (Figure 25-1) and shows the protocols for the selected domain.
The Application Monitor window provides a series of display options that you can tailor to examine the statistics of greatest interest.
Table 25-1 explains the Application Monitor view options.
| Choose This View Option... | To Display This Information |
|---|---|
Current utilization as a percentage of total available bandwidth. | |
The rate of traffic per second, in kilobytes. | |
The rate of traffic per second, in packets. | |
For Frame Relay agents, Fast Ethernet full-duplex, HSSI, ATM full-duplex, or WAN SwitchProbe devices, the sum of the DTE and DCE traffic. | |
For Frame Relay agents, Fast Ethernet full-duplex, HSSI, ATM full-duplex, or WAN SwitchProbe devices, the amount of DTE traffic. | |
For Frame Relay agents, Fast Ethernet full-duplex, HSSI, ATM full-duplex, or WAN SwitchProbe devices, the amount of DCE traffic. | |
For Frame Relay agents, Fast Ethernet full-duplex, HSSI, ATM full-duplex, or WAN SwitchProbe devices, the average of the traffic for both the DTE and DCE. | |
For Frame Relay Agents, Fast Ethernet full-duplex, HSSI, ATM full-duplex, or WAN SwitchProbe devices, what part of the link (DTE or DCE) is seeing the most traffic. | |
For Frame Relay agents, Fast Ethernet full-duplex, HSSI, ATM full-duplex, or WAN SwitchProbe devices, what part of the link (DTE or DCE) is seeing the least traffic. |
To start Scope, follow these steps:
Step 1 Select Scope>Select Agent from the menu bar.
A Scope window similar to the one shown in Figure 25-2 opens.
Step 2 Select the agent(s) port number(s), or DLCI(s) you want to examine more closely.
Step 3 Click OK.
The Application Monitor window that is opened is based on the selections you made when you started Application Monitor. If necessary, previous and next buttons are enabled to allow you to scroll within the Scope window.
Application Monitor lets you do the following tasks:
This section also includes information about the following topics:
The default display for Application Monitor is a 3-D vertical bar graph. To change this display to a 2-D or 3-D horizontal bar graph, 2-D vertical bar graph, or pie chart, select the desired option from the Format menu.
The following sections contain additional information about display properties:
To view a bar graph in inverted form, select Format>Horizontal Bar. This action inverts the axes of the two 2-D and 3-D bar graph displays. Depending on the data you are displaying, you may choose to switch the x and y axes. Inverting the graph may provide a clearer picture of the data and the devices you are monitoring.
In any 3-D graph, such as a bar graph or pie chart, you can manipulate the elevation, depth, and angle of the displayed graph with the mouse. You can also increase or decrease the three-dimensional effect of the graph according to your preference.
To manipulate a 3-D graph, follow these steps:
Step 1 Move the cursor to a free space in the window of the three-dimensional graph you want to manipulate.
Step 2 Do one of the following actions:
Step 3 Drag the cursor to change the 3-D effect of the graph. When the graphic is positioned the way you want it, release the mouse button(s).
Application Monitor lets you monitor several applications at a time, but you can only monitor one statistic at a time. You can, however, display several different Application Monitor windows and select different statistics to monitor for each.
To view Application Monitor information, follow these steps:
Step 1 Select Agent, Agent Group, or Frame Relay from the main window.
Step 2 Do one of the following actions:
Step 3 Select a domain group name from the Domain Group list.
Step 4 Click the Application Monitor icon.
The Application Monitor window with the protocols for the selected domain group opens.
You can begin to monitor your network from this window by protocol makeup and behavior.
The following section contains information about:
The Application Monitor window displays a 3-D vertical bar graph by default. However, you can choose to display information in different formats. To change the display, select an option from the Format menu.
Table 25-2 lists the Application Monitor format options.
| Option | Display |
3-D Bar | Three-dimensional vertical bar graph |
2-D Bar | Two-dimensional vertical bar graph |
Pie | Pie chart |
Horizontal Bar | Two- or three-dimensional horizontal bar graph |
Posted: Mon Apr 5 13:13:45 PDT 1999
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