|
|
Earlier chapters describe TrafficDirector tools that monitor multiple segments and domains. In this chapter you will find tools that focus on a single agent and domain. You use these tools to more closely examine different aspects of network operation.
Typically, you will first use a multisegment, multidomain tool to get a general idea of the portion of the network you want to monitor, then use the single-agent, single-domain tools to zero in on the portion you want to examine more closely. To do so, you will pick one of the following single-segment, single-domain tools:
Working with single agent/domain tools is a little different from working with other multisegment, multidomain tools. For example, you can usually launch the standalone applications, such as Trap Manager, Data Capture, and Agent Info from most of the single agent/domain tools described in this chapter. You can launch these standalone tools from almost anywhere in TrafficDirector. This chapter is your guide to working with the single agent/domain tools in TrafficDirector.
You can select the type of graphical representation used with the history graphs. (The default graph type is Plot.) To do so, use the following procedure.
Step 1 Select the Properties menu.
Step 2 Select from the following graph types:
You can view a description of the selected agent's system information and interface configuration directly from most of the graphs and lists in this chapter. To view agent information at any time, click the Agent Info button, if it is available, or select Tools>Agent Info from the menu bar. When you do so, the Agent Information window (Figure 6-1) is displayed.
If you are printing either a graph or a tabular display, the procedure is the same. Once the graph or tabular display you want to print is shown on the TrafficDirector console, use the following procedure to print it.
Step 1 With the graph or tabular display you want to print displayed on the screen, select File>Print from the menu bar. The Print Options window is displayed (Figure 6-2).
Step 2 Do one of the following:
Step 3 Click Apply.
There are two ways to launch single agent/domain monitoring tools:
You can launch single agent/domain tools from either Traffic Monitor or Protocol Monitor graphs. To do so, use the following procedure.
Step 1 Do one of the following:
Step 2 Highlight the following:
Step 3 Click Launch.
In Traffic Monitor, Protocol Monitor, or Domain Manager, you can launch a single agent or domain tool directly from the Tools menu. To do so, use the following procedure.
Step 1 Select Tools from the application's network monitoring window menu bar, and then select the segment or domain tool you want. For all tools except Domain Manager, one of the Application Launch windows is displayed (see Figure 6-3 or Figure 6-4).
Step 2 Select the application you want to launch, if it is not already highlighted.
Step 3 Select the appropriate agent and domain.
Step 4 Click Launch. The selected application is displayed.
Segment Zoom displays the traffic information available from a particular agent for a single domain. Most of the displays are refreshed every update period. (The update period is user-defined.) Two displays, graphical and tabular, are available. Each display provides different information:
You can launch Segment Zoom from either of these applications:
The graphical view (Figure 6-5) is displayed by default when you launch Segment Zoom from Traffic Monitor and Protocol Monitor. The tabular view (Figure 6-6) is displayed by default when you launch Segment Zoom from Domain Manager.
The Segment Zoom graphical window provides data displays described in the table below. Keep in mind that Segment Zoom displays different variables for each of the different types of agent. The displays reflect whether the network is Ethernet, WAN, FDDI, or Token Ring; differences are noted in the following list:
| Utilization % | Displays both maximum and current segment utilizations as a percentage of total available bandwidth (10 Mbits/sec). For frame relay agents, two utilization % headings are displayed: DTE utilization % and DCE utilization %. Depending on the type of agent selected, these headings are customized for different types. |
| Collision Rate | Displays Ethernet only, both maximum and current segment collisions as a percentage of packets. |
| Total Packets | Displays FDDI only, both maximum and current token packet rate. |
| MAC Packet Rate | Displays Token Ring only, both maximum and current MAC packet rate. |
| Error Packet Rate | Displays WAN only, both the maximum and current error packet rate. |
| Packet Size | Displays percentages of both current and historical packet sizes as pie charts; shows six packet sizes. |
| Packet Destination | Display percentages of both current and historical packet sizes as pie charts. Unicast, multicast, and broadcast packets are displayed. |
| Segment History | Displays segment history as three superimposed graphs: Utilization, Collisions, and Errors. A menu option lets you switch between short-term history and long-term history. Keep in mind that depending on the agent you select, the heading is customized. For example, if you select a frame relay agent, the heading defaults to Short-Term DTE Segment History. |
To use the Segment Zoom graphical display, use the following procedure.
Step 1 Launch Segment Zoom from either Traffic Monitor, Protocol Monitor, or Domain Manager. If you launch it from Domain Manager, switch from the text view to the graphical view using the Show Graph button on the text view window. The Segment Zoom graphical view is displayed (Figure 6-5).
Step 2 From the menu bar, select either View>Short-Term History or View>Long-Term History. The default is Short-Term History.
Step 3 To select a data sample rate, select Sample from the menu bar, and then select the rate you want. Sample rates range from 15 seconds to 5 minutes. The default is 15 seconds.
You can also select Tools from the menu bar and then select from the following:
| Show Text | Switches to the Segment Zoom text view. |
| Segment Statistics | Shows immediate segment traffic statistics in graphical form. |
| Short-Term History | Provides history of segment traffic statistics for a short period. The default is 30 seconds. |
| Long-Term History | Provides history of segment traffic statistics for a longer period. The default is 3600 seconds. |
| Top N Hosts | Provides a list of the top N hosts providing traffic on the segment. |
| Data Capture | Launches the TrafficDirector Data Capture application. |
| Trap Manager | Launches the TrafficDirector Trap Manager application. |
| Agent Info | Displays information about the agent and its MIBs. |
You can tell a lot about what is happening in a particular domain by looking at the Segment Zoom graphical display (for example, collisions, utilization percent, and other displays described earlier).
To print information from the Segment Zoom window, see the "Printing Graph and Tabular Displays" section.
To exit the Segment Zoom graphical display at any time, select File>Exit from the menu bar.
The Segment Zoom window provides additional segment traffic information in tabular form (Figure 6-6). Note that the selected agent and domain appear at the top of the window. The display information shown in the figure is for Ethernet; display information is different for other network and agent types.
The text display has three lists. The information displayed depends on the menus and selection buttons you select. To use the Segment Zoom text display, use the following procedure.
Step 1 Select Show Text from the graphical Segment Zoom window. (If you are in Domain Manager, the text display is displayed first.)
Step 2 Select Properties to determine the type of statistics displayed. You can select, for Token-Ring segments, promiscuous statistics (default), MAC errors, or Ring Information. If you have selected a frame relay agent on a WAN segment, you can choose to see DTE, DCE, or DTE+DCE (default) statistics.
Step 3 To select a data sample rate, select Sample from the menu bar, and then select the rate you want. Sample rates range from 15 seconds to 2 minutes. The default is 1 minute.
You can select any of the tools available, either from those displayed when you select Tools from the menu bar or by clicking one of the selection buttons. Your choices are as follows:
| Show Graph | Displays the graphical representation of segment zoom. |
| Segment Statistics | Displays basic statistics. |
| Short-Term History | Available only from the Tools menu, displays a graph of segment activity for a short period of time. |
| Long-Term History | Available only from the Tools menu, displays a graph of segment activity for a longer period of time. |
| Host List | Displays activity for segment hosts. |
| Conversation List | Displays statistics for conversations between selected hosts. |
| Data Capture | Launches the TrafficDirector Data Capture application. |
| Trap Manager | Launches the TrafficDirector Trap Manager application. |
| Agent Info | Provides information on the selected agent. |
The first list displays cumulative traffic statistics for the domain. This information is from the etherStatsTable for an Ethernet interface or from the Promiscuous/MAC-level tokenRingStatsTable for a Token-Ring interface.
The second list displays Buckets, Interval, and Short-Term History. This information is from the short-term history table associated with the domain.
The third list displays Buckets, Interval, and Long-Term History. This information is from the long-term history table associated with the domain.
If you want to print the contents of the Segment Zoom list for your records, see the "Printing Graph and Tabular Displays" section.
To exit the Segment Zoom text display at any time, select File>Exit from the menu bar.
Host List gives you a complete list of the hosts and host activity that the selected agent detects for the specified domain. You can specify that the list be sorted by one of the statistical values available in the Sort menu. You can use Host List to verify the number of hosts in the domain. You can also use it to determine whether a specific host is included in that domain.
Initially, Host List displays a tabular view, although from Host List you can launch Tools>Top N Hosts to display the Top N Hosts graph, which lets you get a better idea of the top N host activity on the monitored segment. Using Host List, you can also select a host for the specified domain and view various statistics by selecting Tools>Host Zoom. Or you could choose to see history information for a selected host by selecting Tools>Host History. Statistics you can display vary, depending on the tool you select, as well as the network and agent type.
Host/group not enabled for this agent/domain!
Use the Host List tabular view to see a complete list of all host activity on the segment. When you display the tabular view, you will see cumulative counters for the information in the list (if you choose graphical display, you will see current values for the sample period). To see cumulative values, use the following procedure to display the Host List tabular view.
Step 1 Select Domain Manager, Traffic Monitor, or Ring Monitor from the TrafficDirector main window, or launch Segment Zoom from an appropriate tool.
Step 2 The next step depends on which tool you selected:
From the tabular Host List view, to sort the list of hosts according to different parameters, select the Sort menu, and choose from the following:
| Name | Sorts by the host name. To edit a host name, highlight the name, then click the Edit Names button. A dialog is displayed that lets you edit the name. Click OK to save the change. |
| Address Order | Sorts by the address of each host. |
| Packets In | Sorts by cumulative number of packets inbound to the host. |
| Packets Out | Sorts by cumulative number of packets outbound from the host. |
| Bytes In | Sorts by cumulative number of bytes inbound to the host. |
| Bytes Out | Sorts by cumulative number of bytes outbound from the host. |
| Multicast | Sorts by cumulative number of multicasts inbound to or outbound from the host. |
| Broadcasts | Sorts by cumulative number of broadcasts inbound to or outbound from the host. |
| Nonunicasts | Sorts by cumulative number of nonunicasts inbound to or outbound from the host. |
| Errors | Sorts by cumulative number of errors in outbound transmissions from the host. |
Step 4 Depending on your needs, select any of the following (items that also correspond to a button are noted):
Use the Host History Graph to display statistics (utilization, packets, bytes, destinations, and errors) about a specific host for the selected agent and domain. To do so, use the following procedure.
Step 1 Select Domain Manager or Traffic Monitor from the TrafficDirector main window, or launch Segment Zoom from an appropriate tool.
Step 2 The next step depends on the initial tool you selected:
Step 3 When the Host List is displayed, first select the address for the host you want to see statistics for, then select Tools>Host History from the menu bar. The Host Stats Graph window is displayed (Figure 6-8).
You can choose from five data views for the selected host. To view different statistics, select View from the menu bar, and choose from the following:
| Bytes | Shows the number of bytes to and from the host. |
| Destinations | Shows broadcasts and multicasts originating from the host only for generic domains. For protocol domains, shows nonunicasts. |
| Errors | Shows any errors originating from the host. |
| Packets | Shows the number of packets to and from the host. |
| Utilization | Default graph, shows all statistics (packets, bytes, destinations, and errors) for the host. |
Step 5 To set the interval between samples, click one of the choices from the Sample menu. The range is from 15 seconds to 2 minutes. The default is 15 seconds.
Step 6 The Tools menu lets you get agent information using Agent Info.
Step 7 To print the contents of the Host History window, see the "Printing Graph and Tabular Displays" section.
Step 8 To exit the Host Stats Graph window at any time, select File>Exit.
Conversation List is the tool used to see more detailed information about conversations between hosts on a segment. Conversation List shows you a listing of all the hosts on a segment that are exchanging packets. For example, if host A is exchanging packets with hosts D and G, the list shows a separate line for the conversation between host A and host D, as well as a separate line for the conversation between host A and host G.
You can also use Conversation List to display Conversation History. The Conversation History shows you the utilization, packets, bytes, and error statistics related to a specific conversational path between two selected hosts on a segment.
You can view a tabular listing of host conversations: the source host, destination host, and the packet, byte, and error statistics between each host pair. To view host conversations, use the following procedure.
Step 1 From the Domain Manager main window, select the agent or switch and domain that you want to see host conversation information for.
Step 2 Select Tools>Conversation List. The Conversation List window (Figure 6-9) is displayed. Conversations between hosts for a specific domain are displayed in the window.
To sort the display by different display listings, select the Sort menu, then select one of the following sort criteria:
| Bytes | Lists conversations in order of number of bytes per conversation. |
| Destination Host | Lists conversations in order of destination host to source host. |
| Errors | Lists conversations in order of number of errors per conversation. |
| Packets | Lists conversations in order of number of packets per conversation. |
| Source Host | Lists conversations in order of source host to destination host. |
Step 4 Do any of the following that apply to your situation and needs:
Use the Conversation History to display statistics (utilization, packets, bytes, and errors) for conversations between selected hosts:
Step 1 Select Domain Manager from the TrafficDirector main window.
Step 2 From the agents and domains listed, select the one you want. Make sure that the agent and domain selection you chose shows a number under the CONV heading. A number under this heading indicates that conversations are enabled; if there is no number shown, you must click Install. See the "Installing Domains on an Agent" section in the "Installing, Deinstalling, and Monitoring Domains Using Domain Manager" chapter for information on how to enable conversations for a domain.
Step 3 Select Tools>Conversation List from the menu bar. The Conversation List window (Figure 6-9) is displayed.
Step 4 From the list displayed, select the source and destination hosts you want to display statistics for, and then select Tools>Conversation History from the menu bar.
The Conversation Stats Graph window is displayed (Figure 6-10).
You can choose from four data views for the selected conversation. To view different statistics, select the View menu, and choose from the following:
| Bytes | Shows the number of bytes the hosts are exchanging. |
| Errors | Shows any errors that occur as the hosts exchange packets. This view is available only for generic domains. |
| Packets | Shows the number of packets the hosts are exchanging. |
| Utilization | Default, shows all statistics (packets, bytes, and errors) for the hosts. |
Step 6 To set the interval between samples, click one of the choices from the Sample menu. The range is from 15 seconds to 2 minutes. The default is 15 seconds.
Step 7 Do any of the following that applies to your situation and needs:
You can see more detailed information about a host or group of hosts for a given agent/domain by using Host Zoom. Host Zoom lists the Top N hosts that the selected host is having conversations with.
The Host Zoom graphical window displays only one of seven host traffic criteria at a time, while the tabular view displays all seven.
To select Host Zoom and display all seven host traffic criteria, use the following procedure.
Step 1 From the Host List tool (see the "Host List and All Talkers" section), select Tools>Host Zoom.
The Host Zoom default tabular view is displayed (Figure 6-11). Note that the agent and domain you selected are displayed at the top of the window. The window lists the addresses of all the hosts that the selected host is currently having conversations with, along with a number of variables. The name and address of the host you selected is displayed at the top of the window.
To change the sort criterion, select the Sort menu, which provides the following selections:
| Address | Sorts by address of different hosts communicating to the selected host on the segment. |
| Packets In | Sorts by current number of packets inbound to the host. |
| Packets Out | Sorts by current number of packets outbound from the host. |
| Bytes In | Sorts by current number of bytes inbound to the host (default value). |
| Bytes Out | Sorts by current number of bytes outbound from the host. |
| Errors In | Sorts by current number of errors inbound to the host. |
| Errors Out | Sorts by current number of errors outbound from the host. |
Step 3 To set the interval between samples, click one of the choices from the Sample menu. The range is from 15 seconds to 2 minutes. The default is 1 minute.
Step 4 Do any of the following that applies to your situation and needs:
The Host Zoom graphical view (Figure 6-12) uses the same sort and sample interval criteria as the tabular view. In addition, you can switch to the tabular view from the Tools menu. The Host Zoom graphical view gives you an overview of a host's conversations, in current values, but it provides less detailed host information than the tabular view.
You can choose to see any of the following graphical views of the selected segment statistics:
| Bytes | A graph by number of bytes per selected interval. |
| Errors | A graph by error occurrence. |
| Packets | A graph by number of packets per selected interval. |
| Packet Destination | A graph by packet destination. |
| Size Distribution | A graph by packet size. |
| Utilization | A graph by utilization percentage (default value). |
| Vital Signs | A general indication of segment health. |
When you select Segment Statistics from the Application Launch window, the Segment Statistics window is displayed (Figure 6-13). Note that the selected agent and domain appear at the top of the window. The other three views are similar.
You can select the statistical variable you view on Segment Statistics. The default variable is Utilization. You can also define the sample interval and rate, the type of statistics displayed, and get agent information. To use the Segment Statistics window, use the following procedure.
Step 1 Select the View menu and choose one of the following variables:
Step 2 Click the variable you want. The statistics that are graphed for each variable are different for Ethernet, Fast Ethernet, Token-Ring, WAN, and FDDI/CDDI segments.
Step 3 Do any of the following that applies to your needs or situation:
Short-term and long-term histories reside in the agent and show statistical histories over preset time periods. History statistics are derived from the segment statistics groups of RMON; this means that to get history graphs, you must install the statistics, short-term history, and long-term history groups in the agent. To confirm or install these groups, see the "Installing, Deinstalling, and Monitoring Domains Using Domain Manager" chapter.
The default sample period for a short-term history is 30 seconds. The default is 30 minutes for a long-term history. The actual sample time is displayed at the top of the graph. You determine the number of samples, or buckets, stored in the agent when the domain is installed. See the "Installing Domains on an Agent" section in the "Installing, Deinstalling, and Monitoring Domains Using Domain Manager" chapter for more information.
To view either type of graph, select either Tools>Short-Term History or Tools>Long-Term History from Protocol Monitor, Traffic Monitor, Segment Zoom, or Domain Manager. When you do so, the graph type you selected is displayed. For example, a short-term history graph is shown in Figure 6-14.
You can select the statistical variable you see on either the Short-Term and Long-Term History graphs. When you do so, the x and y axes may change to fully show the variable you selected. The default variable is Utilization. To select a variable for use with either graph, use the following procedure.
Step 1 Select the View menu. These variable selections are displayed:
Step 2 Select one of the variables. The selected graph is displayed according to the variable you chose.
You can print the history graphs at any time. To do so, refer to the "Printing Graph and Tabular Displays" section earlier in this chapter.
To exit the history graphs at any time, select File>Exit from the menu bar.
Top N Talkers and Top N Hosts graphs (available in graphic view only) show the same information. However, the Top N Talkers list is a generic graph that includes every entity that is talking on a network segment. The Top N Host List shows either VLAN, DLCI, Router, or Host information (the title bar on the graph reflects your selection). The tool you select depends on the agent you select. Remember that the information type for both graphs is the same.
To view either type of graph, select either Tools>Top N Talkers or Tools>Top N Hosts from Protocol Monitor, Traffic Monitor, Segment Zoom, Host List, or Domain Manager. When you do so, the graph type you selected is displayed. For example, a short-term history graph is shown in Figure 6-15.
You can select the statistical variable you see on either the Top N Talkers or Top N Hosts graphs. When you do so, the x and y axes may change to fully show the variable you selected. The default variable is Bytes Out. To select a variable for use with either graph, use the following procedure.
Step 1 Select the View menu. These variable selections are displayed:
Step 2 Select one of the variables. The selected graph is displayed according to the variable you chose.
You can print the history graphs at any time. To do so, see the "Printing Graph and Tabular Displays" section earlier in this chapter.
To exit the history graphs at any time, select File>Exit from the menu bar.
|
|