User Guide for the Cisco Network Analysis Module Virtual Service Blades, 4.2
Monitoring Data
Downloads: This chapterpdf (PDF - 2.11MB) The complete bookPDF (PDF - 8.44MB) | Feedback

Monitoring Data

Table Of Contents

Monitoring Data

Overview of Data Collection and Data Sources

Configuring Multiple Collections

 Protocol Auto Discovery

NDE Flow Masks and V8 Aggregation Caches

Viewing the Monitor Overview Charts

Data Source Persistence

Viewing Individual Applications Data

Viewing the Applications

Displaying Details from the Applications Table

Viewing Real-Time Data from the Application Table

Viewing Reports from the Applications Table

Viewing the Top N Applications Chart

Viewing the Applications Cumulative Data Table

Displaying Details from the Applications Table

Viewing Application Groups

Viewing the Application Groups Current Rates Table

Displaying Details from the Application Group Table

Viewing Real-Time Data from the Application Group Table

Viewing Reports from the Application Group Table

Viewing the Top N Application Group Chart

Viewing the Application Groups Cumulative Data Table

Viewing the TCP/UDP Port Table

Viewing the TCP/UDP Port Table Current Rates

Viewing the TCP/UDP Port Table TopN Chart

Viewing the TCP/UDP Port Table Cumulative Data

Monitoring Hosts

Viewing the Network Hosts Current Rates Table

Viewing Network Host Details

Viewing Real-Time Traffic Statistics from the Hosts Table

Viewing Reports from the Network Hosts Table

Viewing the Network Hosts Top N Chart

Viewing the Network Hosts Cumulative Data Table

Viewing Conversations Data

Viewing Network Hosts

Viewing the Network Host Conversations Current Rates Table

Viewing the Network Host Conversations Top N Chart

Viewing the Network Host Conversations Cumulative Data Table

Viewing the Application Hosts

Viewing DiffServ Data

Viewing the DiffServ Traffic Statistics Current Rates Table

Viewing Real-Time Traffic Statistics from the DiffServ Traffic Statistics Table

Viewing Reports from the DiffServ Traffic Statistics Table

Viewing the DiffServ Traffic Top N Chart

Viewing the DiffServ Traffic Statistics Cumulative Data Table

Viewing the DiffServ Application Statistics Current Rates Table

Displaying Application Conversation Details From Application Statistics Table

Viewing Real-Time Traffic Statistics from the DiffServ Application Statistics Table

Viewing Reports from the DiffServ Application Statistics Table

Viewing the DiffServ Application Statistics Top N Chart

Viewing the DiffServ Application Statistics Cumulative Data Table

Viewing the DiffServ Host Statistics Current Rates Table

Displaying Host Conversation Details From the DiffServ Host Statistics Table

Viewing Real-Time Data from the DiffServ Host Statistics Table

Viewing Reports from the DiffServ Host Statistics Table

Viewing the DiffServ Host Statistics Top N Chart

Viewing the DiffServ Host Statistics Cumulative Data Table

Monitoring Response Time Data

Server Application Responses

Viewing Server Application Responses

Viewing Server Application Transactions

Server Network Response Time

Server-Client Application Response Times

Viewing Server-Client Application Response Time

Viewing Response Time across Multiple WAAS Segments

Viewing the Server-Client Transactions

Viewing the Server-Client Network Response Time

Viewing Interface Statistics Data

Viewing the Interface Stats Current Rates Table

Viewing Interface Details

Viewing Real-Time Traffic Data from the Interface Stats Table

Viewing Reports from the Interface Stats Table

Viewing the Top N Port Stats Chart

Viewing the Top N Interface Stats Chart

Viewing the Interface Stats Cumulative Data Table

Viewing Interface Details

Viewing Managed Device Health

Managed Device Health

Managed Device Information

Crossbar Switching Fabric

Ternary Content Addressable Memory Information

Viewing NBAR

Viewing the NBAR Current Rates Table

Viewing the Top N NBAR Chart

Viewing the NBAR Cumulative Data Table


Monitoring Data


The Monitor tab provides options for viewing various types of monitored data. There are options for:

Overview of Data Collection and Data Sources

Viewing the Monitor Overview Charts

Viewing Application Groups

Viewing Individual Applications Data

Monitoring Hosts

Viewing Conversations Data

Viewing DiffServ Data

Monitoring Response Time Data

Viewing Interface Statistics Data

Viewing Managed Device Health

Viewing NBAR


Note NAM 4.2 supports IPv6 for all monitoring functionality except monitoring response time and RTP stream analysis.


Overview of Data Collection and Data Sources

All statistics and monitoring data produced by the NAM are generated by various types of collections. A collection operates on a stream of packets and produces output based on the input stream. In most cases, a collection corresponds directly to MIB tables such as RMON or SMON.

The Collection Definitions table (Table 4-1) defines the different collection types.

Table 4-1 Collection Definitions 

Collection
Definition
Corresponds

Host

Examines a stream of packets; produces a table of all network addresses observed in those packets (also known as the collection data). Each entry records the total number of packets and bytes sent and received by that host and the number of non-unicast packets sent by that host.

RMON2 nlHostTable (the actual implementation of the collection).

Protocol

Examines a stream of packets; produces a table of all protocols observed in those packets. Each entry indicates the number of packets and bytes observed for that protocol.

RMON protocolDistStatsTable (the actual implementation of the collection).

Capture

Examines a stream of packets; produces a table of actual packet data (the captureBufferEntries). Each entry contains an exact copy of the data observed in the packet.

RMON1 bufferTable, filterTable, and channelTable variables.



Note Capture is not supported on virtual NAMs.


The stream of packets on which a collection operates is called the collection data source. It might be different for each collection. The data produced by a collection is called the collection data.


Note The collection data is usually in the form of SNMP tables (except in voice collections).


The NAM can support simultaneous combinations of different collections, each operating on different collection data sources.

The number of potential simultaneous collections is limited only by CPU and memory resources.

The collection data sources are limited by the SPAN sources. For more information on SPAN sources, see the "Data Sources" section on page 3-5.

NAM 4.2 can support a maximum of at least 1,500 data sources.

Configuring Multiple Collections

You can configure multiple collections (such as host, conversation, protocol, ART, and voice) simultaneously on the NAM. Collections are always configured on separate data sources.

Associated with each collection is a specific collection data source that might or might not correspond directly with the traffic stream that was configured. Examples of collection data sources include:

All packets in the traffic stream that were configured to arrive on a specific NAM data port (DATA PORT 1 or DATA PORT 2).


Note Data sources persist across all Monitor windows. For example, if you select VLAN2 as a data source, then go to another Monitor window, VLAN2 will be displayed there if it is configured for that collection. If the previously selected data source is not configured for collection on the new Monitor window, the NAM displays the default data source for that window.


Individual collection instances process only those packets in the traffic streams that correspond to their configured data sources. For example, a host collection configured with a data source of VLAN 12 will not be populated with any received NDE flow records. Nor will it be populated with packets in the traffic stream that are not tagged for VLAN 12.

Similarly, a conversation collection configured with a data source specifying NDE records from a remote router will not be populated with any packets arriving in the traffic stream.

Each possible collection data source is represented as an ifEntry in the NAM ifTable (MIB-II). The Data Collection Sources table (Table 4-2) describes the valid collection data sources.

Table 4-2 Data Collection Sources 

Collection Data Source
Limitations

Specific VLAN ID

If the VLAN was not configured as part of the traffic stream, the collection is not populated with data.

NDE data source

The export parameters must be configured on the device that will export the records to the NAM; otherwise, the collection is not populated with data. Monitoring is limited to a subset of NAM collection types.


 Protocol Auto Discovery

Traffic Analyzer can automatically discover up to 100 unknown protocols. The protocols are displayed according to the parent type and an identifier.

The Auto-Discovered Protocol Types table (Table 4-3) lists the type of protocols that can be automatically discovered and how they are displayed.

Table 4-3 Auto-Discovered Protocol Types 

Protocol Type
Displays As...

Ether2

ether2-ether-type number

SNAP

snap-ether-type number

IP

ip-protocol type number

TCP

tcp-port number

UDP

udp-port number

SUNRPC

sunrpc-program number



Note The automatically discovered protocols are not saved in NVRAM and are lost when the NAM is rebooted. To save an auto-discovered protocol, you can enter it manually into the Protocol Directory. For more information, see the "Creating a New Protocol" section on page 3-41. You can also clear the auto-discovered protocols without rebooting by entering the command no monitor protocol auto-learned in the NAM CLI.


NDE Flow Masks and V8 Aggregation Caches

Depending on the flow mask or aggregation configured at the device, some data fields might not be available in the NDE data structure. As a result, some windows will not display data for a NetFlow data source or will display specific conditions. The Flow Mask and Aggregation Window Conditions table (Table 4-4) lists the display conditions for the windows under the Monitor tab and the flow-mask or aggregation that causes them.

Table 4-4 Flow Mask and Aggregation Window Conditions 

Flow Mask or Aggregation Cache
Window Conditions

Full flow mask

Supported in all windows.

Destination only flow mask

Monitor  >  Apps displays "Others" only, and the detail pop-up window does not have data.

Monitor  >  Hosts displays 0.0.0.0 and the detail pop-up window does not have data.

Monitor  >  Conversations displays 0.0.0.0 for some hosts and the detail pop-up window does not have data.

Destination-Source flow mask

Monitor  >  Apps displays "Others" only, and the detail pop-up window does not have data.

Monitor  >  Hosts has data, but the detail pop-up window does not.

MonitorConversations has data, but the detail pop-up window does not.

V8-Protocol-Port-Aggregation

Monitor  >  Apps has data, and the detail pop-up window displays 0.0.0.0 only.

Monitor  >  Host displays 0.0.0.0 only.

Monitor  >  Conversations displays 0.0.0.0 to 0.0.0.0 only.

There is no data for custom NetFlow data sources that are set up for specific interfaces.

There is no DiffServ except TOS 0 and DSCP 0.

Setup  >  Data Sources  >  NetFlow Listening Mode detail pop-up window does not have interfaces information.

V8-Destination-Prefix-Aggregation

Monitor  >  Apps displays "Others" only.

Monitor  >  Host displays data with subnets and 0.0.0.0. The detail pop-up window does not have data.

Monitor  >   Conversations displays data with 0.0.0.0 to subnets, and 0.0.0.0 to 0.0.0.0. The detail pop-up window does not have data.

There is no DiffServ except TOS 0 and DSCP 0.

There is support for NetFlow custom data sources that are set up for specific interfaces.

V8-Prefix-Aggregation

Monitor  >  Apps displays "Others" only.

Monitor  >  Host displays data with subnets and 0.0.0.0. The detail pop-up window does not have data.

Monitor  >  Conversations displays data and 0.0.0.0 to 0.0.0.0. The detail pop-up window does not have data.

There is no DiffServ except TOS 0 and DSCP 0.

There is support for NetFlow custom data sources that are set up for specific interfaces.

V8-Source-Prefix-Aggregation

Monitor  >  Apps displays "Others" only.

Monitor  >  Host displays data with subnets and 0.0.0.0. The detail pop-up window does not have data.

Monitor  >  Conversations displays data with subnets to 0.0.0.0, and 0.0.0.0 to 0.0.0.0. The detail pop-up window does not have data.

There is no DiffServ except TOS 0 and DSCP 0.

There is support for NetFlow custom data sources that are set up for specific interfaces.

V8-AS-Aggregation

Not supported.


Viewing the Monitor Overview Charts

The Monitor Overview charts allow you to take a quick look, in graphical format, at the TopN protocol suites, active hosts, active applications, and application response times monitored on your network. To view the Monitor Overview charts, click the Monitor tab.

The following charts are displayed:

Most Active Applications Chart (Figure 4-1)

Most Active Hosts Chart (Figure 4-2)

Server Response Times Chart (Figure 4-3)

Protocol Suites Chart (Figure 4-4)

Figure 4-1 Most Active Applications Chart

1

Top N protocols sorted by color.

2

Number of bytes collected per second for each protocol.


Figure 4-2 Most Active Hosts Chart

1

Top N network addresses sorted by color.

2

Number of bytes collected per second for each address.


Figure 4-3 Server Response Times Chart

1

Top N servers sorted by color

3

Server response time

2

Protocol used by the server

   

Figure 4-4 Protocol Suites Chart

1

Pie chart showing network protocol usage.

2

Top N network protocols.


Data Source Persistence

When you view a monitor window with drop down data source lists, the NAM saves the selected data source. When you next view a monitor window with a drop down data source list, the NAM displays the previously saved data source. If no data source has been previously viewed and saved, the NAM displays the default data source. If you go to a different monitor window, and no collection has been configured with the saved data source, the default data source displays.

Viewing Individual Applications Data

To view the distribution of packets and bytes based on the application protocol, click Monitor > Apps. The Applications table displays with three radio buttons on top.

You can select a radio button for:

Viewing the Application Groups Current Rates Table

Viewing the Top N Application Group Chart

Viewing the Application Groups Cumulative Data Table

Viewing the Applications

The Applications Current Rates table enables you to view the number of packets and bytes collected for each application protocol. The data displayed is the number of packets and bytes collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.


Note Auto-learned or user-defined protocols are not listed in the table.


To view the Applications Current Rates table:


Step 1 Click the Current Rates table radio button.

The Applications Current Rates Table (Table 4-5) displays.

Table 4-5 Applications Current Rates Table 

Field
Description

Protocol

Name of the application protocol.

Packets/s

Number of packets collected per second.

Bytes/s

Number of bytes collected per second.


Step 2 Choose the data source to monitor from the Data Source list.

Step 3 To view data for a specific protocol, enter the protocol name in the Protocol text box, then click Filter.

Any matching protocols are displayed.


Check a protocol's check box to take other action from this window.

Check a protocol's check box, then click Save to save the protocol to the database.

Check a protocol's check box, then click Details to view more details about the protocol.

Check a protocol's check box, then click Capture to begin a capture of data flow of the chosen protocol.

Check a protocol's check box, then click Real-Time to view a real-time graph of the protocol's traffic.

Check a protocol's check box, then click Report to generate a report of the chosen protocol.


Tip To view the full protocol name, move the cursor over the protocol name in the Protocol column of the Protocol Directory table.



Tip To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.


Displaying Details from the Applications Table

To view details for a specific application protocol, select the protocol and click Details, or click on the protocol name in the Protocol column. The Application Group Window (Figure 4-5) displays, showing all network hosts using this protocol. The displayed data is specific to the selected data source.

Figure 4-5 Application Protocol Detail Window

The Applications Protocol Detail Window displays the following information.

Table 4-6 Application Protocol Detail Table

Field
Description

Description

Full name and description of the protocol.

Host

The hostname of the computer using the application protocol.

In Pkts

Number of packets the host received for the specified protocol.

Out Pkts

Number of packets the host transmitted for the specified protocol.

In Bytes

Number of bytes the host received for the specified protocol.

Out Bytes

Number of bytes the host transmitted for the specified protocol.


Viewing Real-Time Data from the Application Table

You can view real-time data in a graphical format for a specific application protocol. Choose the protocol from the table, then click Real-Time. The Real-Time Graph (Figure 4-6) displays.

Figure 4-6 Real-Time Graph

Viewing Reports from the Applications Table

You can view reports directly from the Applications table. Choose the application protocol for which to view a report, then click Report. The Basic Reports graph displays. If a report is not configured, one will be created based on the selected application and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Top N Applications Chart

The TopN Applications Chart enables you to view the number of packets and bytes collected for the Top N application protocols in a graphical format. The data displayed is the number of packets and bytes collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the TopN Applications chart:


Step 1 Click the TopN Chart radio button.

The TopN Application Group Chart (Figure 4-7) displays.

Figure 4-7 TopN Applications Chart

Step 2 Choose the data source to monitor from the Data Source list.

Step 3 Choose one of the following from the Variable list:

Packets—Displays the number of packets per second monitored.

Bytes—Displays the number of bytes per second monitored.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name.


Viewing the Applications Cumulative Data Table

The Applications Cumulative Data Table enables you to view the number of packets and bytes collected for each application protocol. The data displayed is the total number of packets and bytes collected since the collection was created or since the NAM was restarted.

To view the Applications Cumulative Data table:


Step 1 Click the Cumulative Data radio button.

The Application Group Cumulative Data Table (Table 4-7) displays.

Table 4-7 Applications Cumulative Data Table 

Field
Description

Protocol Name

Name of the monitored protocol.

Packets

Total number of packets collected over the last time interval.

Bytes

Total number of bytes collected over the last time interval.


Step 2 Choose the data source to be monitored from the Data Source list.

Step 3 To refresh the table, click Refresh.

Step 4 To view data for a specific protocol, enter the protocol name in the Protocol text box, then click Filter.

Any matching protocols are displayed.



TipTo view the full encapsulated protocol name, move the cursor over the protocol name in the Protocol column of the Protocol Directory table.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.


Displaying Details from the Applications Table

To view details for a specific application protocol, click on the protocol name in the Protocol column. The Protocol Detail Window(Figure 4-8) displays.

Figure 4-8 Protocol Detail Window

The Protocol Detail Window displays the following information:

Table 4-8 Protocol Detail Table 

Field
Description

Host

The hostname of the computer using the application protocol.

In Pkts

Number of packets the host received for the specified protocol.

Out Pkts

Number of packets the host transmitted for the specified protocol.

In Bytes

Number of bytes the host received for the specified protocol.

Out Bytes

Number of bytes the host transmitted for the specified protocol.


Viewing Application Groups

To view the distribution of packets and bytes based on the application group, click the Monitor tab, then click Apps and select Application Groups from the Contents Menu. The Applications Group table displays with three radio buttons on top.

You can select a radio button for:

Viewing the Application Groups Current Rates Table

Viewing the Top N Application Group Chart

Viewing the Application Groups Cumulative Data Table

Viewing the Application Groups Current Rates Table

The Application Groups Current Rates table enables you to view the number of packets and bytes collected for each application group. The data displayed is the number of packets and bytes or bits collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Application Groups Current Rates table:


Step 1 Click the Current Rates table radio button.

The Application Groups Current Rates Table (Table 4-9) displays.

Table 4-9 Application Groups Current Rates Table 

Field
Description

Application Groups

Name of the application group.

Packets/s

Number of packets collected per second.

Bytes/s

Number of bytes collected per second.

Bits/s

Number of bits collected per second.


Step 2 Choose the data source to monitor from the Data Source list.

Step 3 To view data for a specific protocol group, enter the group name in the text box, then click Filter. Any matching groups are displayed.



TipTo view the application list for a particular protocol group, click the + sign in front of the group name.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.


Displaying Details from the Application Group Table

To view details for a specific application group, select the application group and click Details. The Application Group Window (Figure 4-9) displays, showing all applications in this group and the network hosts using those particular applications. The displayed data is specific to the selected data source.

Figure 4-9 Application Group Window

The Applications Group Detail Window displays the information listed in Table 4-10.

Table 4-10 Application Group Detail Window Fields 

Field
Description

Description

Full name and description of each application in that group.

Host

The hostname of the computer using the application group.

In Pkts

Number of packets the host received for the specified group.

Out Pkts

Number of packets the host transmitted for the specified group.

In Bytes

Number of bytes the host received for the specified group.

Out Bytes

Number of bytes the host transmitted for the specified group.


Viewing Real-Time Data from the Application Group Table

You can view real-time data in a graphical format for a specific application protocol.

Choose the protocol from the table, then click Real-Time. The Real-Time Graph (Figure 4-10) displays.

Figure 4-10 Real-Time Graph

Viewing Reports from the Application Group Table

You can view reports directly from the Applications table. Choose the application protocol for which to view a report, then click Report. The Basic Reports graph displays. If a report is not configured, one will be created based on the selected application and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Top N Application Group Chart

The TopN Applications Chart enables you to view the number of packets and bytes collected for the Top N application protocols in a graphical format. The data displayed is the number of packets and bytes collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the TopN Applications chart:


Step 1 Click the TopN Chart radio button.

The TopN Application Group Chart (Figure 4-11) displays.

Figure 4-11 TopN Application Group Chart

Step 2 Choose the data source to monitor from the Data Source list.

Step 3 Choose one of the following from the Variable list:

Packets—Displays the number of packets per second monitored.

Bytes—Displays the number of bytes per second monitored.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name.


Viewing the Application Groups Cumulative Data Table

The Applications Groups Cumulative Data table enables you to view the number of packets and bytes collected for each application group. The data displayed is the total number of packets and bytes collected since the collection was created or since the NAM was restarted.

To view the Applications Groups Cumulative Data table:


Step 1 Click the Cumulative Data radio button.

The Application Group Cumulative Data Table (Table 4-11) displays.

Table 4-11 Application Group Cumulative Data Table 

Field
Description

Group Name

Name of the monitored group.

Packets

Total number of packets collected over the last time interval.

Bytes

Total number of bytes collected over the last time interval.


Step 2 Choose the data source to be monitored from the Data Source list.

Step 3 To refresh the table, click Refresh.

Step 4 To view data for a specific group, enter the group name in the Group text box, then click Filter.

Any matching groups are displayed.


Tip To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Viewing the TCP/UDP Port Table

The TCP/UDP Port Table displays with three radio buttons; one for current rates (the default view), one for TopN Chart, and one for Cumulative Data.

You can select a radio button for:

Viewing the TCP/UDP Port Table Current Rates

Viewing the TCP/UDP Port Table TopN Chart

Viewing the TCP/UDP Port Table Cumulative Data

Viewing the TCP/UDP Port Table Current Rates

To view the TCP/UDP Port Table current rates, click Monitor > Apps > TCP/UDP Port Table.

The TCP/UDP Port Table Current Rates table enables you to view the current rates of data transfer for the various TCP and UDP server ports. Table 4-12 lists the statistics shown in the TCP/UDP Port Table Current Rates table.

Table 4-12 TCP/UDP Port Table Current Rates 

Field
Description

Server Port

All server ports currently in use.

Application

Application in use on each port.

Note In some cases, the Application field might be blank. This usually happens with TCP/UDP ports that are used dynamically rather than static or well-known ports. When the NAM determines that the same port was used for more than one application, from that point on the NAM displays the Application field as blank.

Packets In/s

Packets in per second

Packets Out/s

Packets out per second

Bytes In/s

Bytes in per second

Bytes Out/s

Bytes out per second


Viewing the TCP/UDP Port Table TopN Chart

To view the TCP/UDP Port Table TopN Chart, click Monitor > Applications > TCP/UDP Port Table, then click the TopN button. The TCP/UDP Port Table TopN Chart shows a graphical chart of the most active TCP and UDP ports currently being used.

You can select to show the chart based on different Data Sources or to select a different variable such as packets or bytes in or out per second.

Figure 4-12 shows an example of the TCP/UDP Port Table TopN Chart.

Figure 4-12 TCP/UDP Port Table TopN Chart

Viewing the TCP/UDP Port Table Cumulative Data

The TCP/UDP Port Table Cumulative Data table enables you to view the number of packets and bytes collected for each server port. The data displayed is the total number of packets and bytes collected since the collection was created or since the NAM was restarted.

To view the TCP/UDP Port Table Cumulative Data table:


Step 1 Click the Cumulative Data radio button.

The TCP/UDP Table Cumulative Data Table (Table 4-13) displays.

Table 4-13 TCP/UDP Table Cumulative Data Table 

Field
Description

Server Port

All server ports currently in use

Application

Application in use on each port

Packets In

Total number of packets received

Packets Out

Total number of packets sent

Bytes In

Total number of bytes received

Bytes Out

Total number of bytes sent


Step 2 Choose the data source to be monitored from the Data Source list.

Step 3 To refresh the table, click Refresh.

Step 4 To view data for a specific group, enter the group name in the Group text box, then click Filter.

The GUI displays any matching groups.


Tip To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Monitoring Hosts

You can view results from any active hosts collections in the RMON1 and RMON2 host tables on the NAM.

To view hosts data, click Monitor > Hosts. The Network Hosts table displays with three radio buttons above it. You can select a radio button for:

Viewing the Network Hosts Current Rates Table

Viewing the Network Hosts Top N Chart

Viewing the Network Hosts Cumulative Data Table

Viewing the Network Hosts Current Rates Table

The Network Current Rates table enables you to view the various data collected for each host. The information displayed represents the data collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Network Current Rates table:


Step 1 Click Monitor > Hosts.

The Network Hosts Current Rates Table (Table 4-14) displays by default.

Table 4-14 Network Hosts Current Rates Table 

Field
Description

Address

Network address of the host.

Via

Protocol being monitored.

In Packets/s

Number of input packets collected per second.

Out Packets/s

Number of output packets collected per second.

In Bytes/s

Number of input bytes collected per second.

Out Bytes/s

Number of output bytes collected per second.

Non Unicast/s

Number of non unicast broadcast packets collected per second.


Step 2 Choose a data source to monitor from the Data Source list.

Step 3 Enter an address to filter in the Address text box, then click Filter.

The specified address displays.


TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Viewing Network Host Details

To view details for a specific host, click on the address in the Address column of the Network Hosts table, or click to select a specific host and click Details. The Network Hosts Detail Window displays, as shown in Figure 4-13.

Figure 4-13 Network Hosts Detail Window

Host Details—Displays detailed information for the host.

Application Protocol Usage Chart—Displays the application protocol usage for the host in graphical format.

Conversations From Known Protocols—Displays known conversations and statistics from the specified host to other hosts on the network using known protocols.

Conversations To Known Protocols—Displays known conversations and statistics to the specified host from other hosts on the network using known protocols.


Tip To view the full protocol name, move the cursor over the protocol name in the Application Protocol Usage chart.


Viewing Real-Time Traffic Statistics from the Hosts Table

You can view real-time traffic statistics in a graphical format for a specific host. Choose the host from the table, then click Real-Time. The Real-Time Graph (Figure 4-14) displays.


Note The Real-Time button is disabled for NetFlow-based data sources.


Figure 4-14 Real-Time Graph

Viewing Reports from the Network Hosts Table

You can view reports directly from the Network Hosts table. Choose the host for which to view a report, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected host and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Network Hosts Top N Chart

The Network Hosts Top N Chart enables you to various data for the TopN hosts in a graphical format. The information displayed represents the data collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Network Hosts Top N Chart:


Step 1 In the contents, click Network Hosts.

Step 2 Click the TopN Chart radio button.

The Top N Network Hosts Chart (Figure 4-15) displays.

Figure 4-15 Top N Network Hosts Chart

1

Data Source list.

3

Top N network host addresses.

2

Variable list.

4

Number of packets/bytes input/output per second for each Top N host.


Step 3 Choose the data source to monitor from the Data Source list.

Step 4 Choose one of the following from the Sort Option list:

In Pkts—Displays the number of input packets.

Out Pkts—Displays the number of output packets.

In Bytes—Displays the number of input bytes.

Out Bytes—Displays the number of output bytes.

Non Unicast Pkts—Displays the number of non-unicast packets.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing the Network Hosts Cumulative Data Table

The Network Hosts Cumulative Data Table enables you to view various data collected for each host. The information displayed represents the total data collected since the collection was created or since the NAM was restarted.

To view the Network Hosts Cumulative Data Table:


Step 1 In the contents, click Network Hosts.

Step 2 Click the Cumulative Data radio button.

The Network Hosts Cumulative Data Table (Table 4-15) displays.

Table 4-15 Network Hosts Cumulative Data Table 

Field
Description

Address

Network address of the host.

Via

Protocol being monitored.

In Pkts

Total number of input packets over the last interval.

Out Pkts

Total number of output packets over the last interval.

In Bytes

Total number of input bytes over the last interval.

Out Bytes

Total number of output bytes over the last interval.

Non Unicast

Total number of non-unicast broadcast packets over the last interval.


Step 3 Choose a data source to monitor from the Data Source list.

Step 4 To view data for a specific address, enter the address in the Address text box, then click Filter.

Any matching addresses are displayed.


TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Viewing Conversations Data

You can view conversations data collected on the NAM. Conversations data represents the number of packets and bytes collected between two hosts. Click Monitor > Conversations to view conversations data.

NAM provides these menu options for monitoring conversations:

Viewing Network Hosts

Viewing the Application Hosts

Viewing Network Hosts

The Network Hosts Conversations table displays statistics between pairs of IP addresses talking to each other. The statistics pertain to all packets between the hosts, regardless of protocol or application. There are three options you can use to display the Network Hosts Conversations table:

Viewing the Network Host Conversations Current Rates Table

Viewing the Network Host Conversations Top N Chart

Viewing the Network Host Conversations Cumulative Data Table

Viewing the Network Host Conversations Current Rates Table

The Network Host Conversations Current Rates table enables you to view the number of packets and bytes collected for each host conversation. The data displayed is the number of packets and bytes collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Network Host Conversations Current Rates table:


Step 1 In the contents, click Network Hosts.

Step 2 Click the Current Rates Table radio button.

The Network Host Conversations Current Rates Table (Table 4-16) displays.

Table 4-16 Network Host Conversations Current Rates Table 

Field
Description

Source

Source address of the conversation.

Via

Network layer protocol over which the hosts are conversing.

Destination

Destination address of the conversation.

Packets/s

Number of packets collected per second for the conversation over the last interval.

Bytes/s

Number of bytes collected per second for the conversation. over the last interval.


Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 To view data for a specific source or destination, select Source, Destination, or Source or Destination from the list.

Step 5 Enter the address in the text box, then click Filter.

Any matching source or destination addresses are displayed.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.


Viewing Network Host Conversation Details

To view conversation details for a specific network conversation, click the network address in the Source or Destination column. The following tables are displayed:

Host Details—Displays detailed information for the source or destination host.

Application Protocol Usage Chart—Displays the application protocol usage for the source of destination host in graphical format.

Conversations From Known Protocols—Displays known conversations and statistics from the specified host to other hosts on the network using known protocols.

Conversations To Known Protocols—Displays known conversations and statistics to the specified host from other hosts on the network using known protocols.


Note To view the full protocol name, move the cursor over the protocol name in the Application Protocol Usage chart.


Viewing Real-Time Traffic Statistics from the Network Host Conversations Table

You can view real-time traffic statistics in a graphical format for a specific host conversation.

Choose the conversation from the table, then click Real-Time. The Real-Time Graph (Figure 4-14) displays.


Note The Real-Time button is disabled for NetFlow-based data sources.


Figure 4-16 Real-Time Graph

Viewing Reports from the Network Host Conversations Table

You can view reports directly from the Network Hosts Conversations table. Choose the conversation you wish to view a report on, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected host and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Network Host Conversations Top N Chart

The Top N Network Host Conversations Chart enables you to view the number of packets and bytes collected for the Top N network host conversations in a graphical format. The data displayed is the number of packets and bytes collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Top N Network Host Conversations chart:


Step 1 In the contents, click Network Hosts.

Step 2 Click the TopN Chart radio button.

The Top N Network Host Conversations Chart (Figure 4-17) displays.

Figure 4-17 Top N Network Host Conversations Chart

1

Data Source list.

4

Top N destination network addresses.

2

Variable list.

5

Number of packets or bytes collected per second.

3

Top N source network addresses.

 

Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 Choose one of the following from the Variable list:

Packets—Sorts the addresses based on the number of packets.

Bytes—Sorts the addresses based on the number of bytes.


Viewing the Network Host Conversations Cumulative Data Table

The Network Host Conversations Cumulative Data Table enables you to view the number of packets and bytes collected for each host conversation. The data displayed is the total number of packets and bytes collected since the collection was created or since the NAM was restarted.

To view the Network Host Conversations Cumulative Data table:


Step 1 In the contents, click Network Hosts.

The Network Hosts Conversations Current Rates table displays.

Step 2 Click the Cumulative Data radio button.

The Network Host Conversations Cumulative Data Table (Table 4-17) displays.

Table 4-17 Network Host Conversations Cumulative Data Table 

Field
Description

Source

Source address of the conversation.

Via

Network layer protocol over which the hosts are conversing.

Destination

Destination address of the conversation.

Packets

Total number of packets collected over the last time interval for the conversation.

Bytes

Total number of bytes collected over the last time interval for the conversation.


Step 3 Choose a data source to monitor from the Data Source list.

Step 4 Enter an address to filter in the Address text box, then click Filter.

The specified address displays.

Step 5 To refresh the table, click Refresh.



Tip To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.


Viewing Network Host Conversation Details

To view conversation details for a specific network conversation, click the network address in the Source or Destination column. The following tables are displayed:

Host Details—Displays detailed information for the source or destination host.

Application Protocol Usage Chart—Displays the application protocol usage for the source of destination host in graphical format.

Conversations From Known Protocols—Displays known conversations and statistics from the specified host to other hosts on the network using known protocols.

Conversations To Known Protocols—Displays known conversations and statistics to the specified host from other hosts on the network using known protocols.

Viewing the Application Hosts

The Application Hosts table enables you to view the number of packets and bytes collected for each host conversation. You can use this data to identify application hosts conversations and port numbers that can help you design access control lists on switches and routers to allow or block certain ports between certain hosts. The data displayed is the number of packets and bytes collected per second over the last time interval.

To view the Application Hosts table, click Monitor > Conversations > Application Hosts. Figure 4-18 shows an example of the Application Hosts table.

Figure 4-18 Application Hosts Table

Table 4-18 lists the fields of the Application Hosts Conversations table.

Table 4-18 Application Hosts Conversations 

Field
Description

Source

Source address of the conversation

Destination

Destination address of the conversation

Application

Application used in conversation

Port

Port used for the conversation.

Packets

Total number of packets collected over the last time interval for the conversation

Bytes

Total number of bytes collected over the last time interval for the conversation


Viewing DiffServ Data

You can view the distribution of packets and bytes based on the Differential Services (DiffServ) data collected on the NAM.


Note DiffServ data is not available for local NetFlow devices.


To view DiffServ data:


Step 1 Click Monitor > DiffServ.

The DiffServ Traffic Statistics table displays with three radio buttons above it. You can select a radio button for:

Viewing the DiffServ Traffic Statistics Current Rates Table.

Viewing the DiffServ Traffic Top N Chart.

Viewing the DiffServ Traffic Statistics Cumulative Data Table.

Step 2 To view the DiffServ data based on the application statistics, click Application Stats in the contents.

The DiffServ Applications Statistics table displays with three radio buttons above it. You can select a radio button for:

Viewing the DiffServ Application Statistics Current Rates Table.

Viewing the DiffServ Application Statistics Top N Chart.

Viewing the DiffServ Application Statistics Cumulative Data Table.

Step 3 To view the DiffServ data based on the host statistics, click Host Stats in the contents.

The DiffServ Host Statistics table displays with three radio buttons above it.

You can select a radio button for:

Viewing the DiffServ Host Statistics Current Rates Table.

Viewing the DiffServ Host Statistics Top N Chart.

Viewing the DiffServ Host Statistics Cumulative Data Table.


Viewing the DiffServ Traffic Statistics Current Rates Table

To view the DiffServ Traffic Statistics Current Rates table:


Step 1 In the contents, click Traffic Stats.

Step 2 Click the Current Rates Table radio button.

The DiffServ Traffic Statistics Current Rates Table (Table 4-19) displays.

Table 4-19 DiffServ Traffic Statistics Current Rates Table 

Field
Description

Aggregation Group

Name of the aggregation group.

Packets/s

Total packets collected per second over the last interval.

Bytes/s

Total bytes collected per second over the last interval.


Step 3 Choose the data source and profile to monitor from the Data Source-Profile list.

Step 4 Enter the aggregation group to filter in the Aggregation text box, then click Filter.

The specified aggregation group displays.


TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Viewing Real-Time Traffic Statistics from the DiffServ Traffic Statistics Table

You can view real-time traffic statistics in a graphical format for a specific aggregation group in the DiffServ Traffic Statistics table.

Choose the aggregation group from the table, then click Real-Time. The Real-Time Graph (Figure 4-14) displays.


Note The Real-Time button is disabled for NetFlow-based data sources.


Figure 4-19 Real-Time Graph

Viewing Reports from the DiffServ Traffic Statistics Table

You can view reports directly from the DiffServ Traffic Statistics table. Choose the aggregation group you wish to view a report on, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the DiffServ Traffic Top N Chart

To view the DiffServ Traffic Top N chart:


Step 1 In the contents, click Traffic Stats.

Step 2 Click the TopN Chart radio button.

The Top N DiffServ Aggregation Group Chart (Figure 4-20) displays.

Figure 4-20 Top N DiffServ Aggregation Group Chart

1

Data Source-Profile list.

3

Variable list.

2

Top N aggregation groups.

4

Number of packets/bytes collected per second.


Step 3 Choose the data source and profile to monitor from the Data Source-profile list.

Step 4 Choose one of the following from the Variable list:

Total Packets—Displays the number of total packets.

Total Bytes—Displays the number of total bytes.


Tip To turn off auto refresh, uncheck the Auto Refresh check box.



Viewing the DiffServ Traffic Statistics Cumulative Data Table

To view the DiffServ Traffic Statistics Cumulative Data table:


Step 1 In the contents, click Traffic Stats.

Step 2 Click the Cumulative Data radio button.

The DiffServ Traffic Statistics Cumulative Data (Table 4-20) displays.

Table 4-20 DiffServ Traffic Statistics Cumulative Data 

Field
Description

Aggregation Group

Name of the aggregation group.

Packets

Total packets collected over the last interval.

Bytes

Total bytes collected over the last interval.


Step 3 Choose the data source and profile to monitor from the Data Source-profile list.

Step 4 Enter the aggregation group to filter in the Aggregation text box, then click Filter.

The specified aggregation group displays.


TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Viewing the DiffServ Application Statistics Current Rates Table

To view the DiffServ Application Statistics Current Rates table:


Step 1 In the contents, click Application Stats.

Step 2 Click the Current Rates Table radio button.

The DiffServ Application Statistics Current Rates (Table 4-21) table displays.

Table 4-21 DiffServ Application Statistics Current Rates 

Field
Description

Protocol Name

Name of the monitored protocol.

Packets/s

Total packets collected per second over the last interval.

Bytes/s

Total bytes collected per second over the last interval.


Step 3 Choose the data source and profile to monitor from the Data Source-Profile list.

Step 4 Choose the aggregation group from the Aggregation list.

Step 5 To view a specific protocol, enter the protocol in the Protocol text box, then
click Filter.

The specified protocol displays.


TipTo view the full protocol name, move the cursor over the protocol name.

To turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Displaying Application Conversation Details From Application Statistics Table

To view the Application Conversations details table, click the protocol name in the Protocol Name column. The Application Conversations Table (Table 4-22)displays.

Table 4-22 Application Conversations Table

Field
Description

Source

Source host address of the conversation.

Destination

Destination host address of the conversation.

Packets

Number of packets during the conversation.

Bytes

Number of bytes during the conversation.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing Real-Time Traffic Statistics from the DiffServ Application Statistics Table

You can view real-time traffic statistics in a graphical format for a specific application protocol in the DiffServ Application Statistics table.

Choose the application protocol from the table, then click Real-Time. The Real-Time Graph (Figure 4-14) displays.


Note The Real-Time button is disabled for NetFlow-based data sources.


Figure 4-21 Real-Time Graph

Viewing Reports from the DiffServ Application Statistics Table

You can view reports directly from the DiffServ Application Statistics table. Choose the application protocol you wish to view a report on, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected application and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the DiffServ Application Statistics Top N Chart

To view the Top N DiffServ Application Statistics chart:


Step 1 In the contents, click Application Stats.

Step 2 Click the TopN Chart radio button.

The Top N DiffServ Application Statistics Chart (Figure 4-22) displays.

Figure 4-22 Top N DiffServ Application Statistics Chart

1

Data Source-Profile list.

4

Variable list.

2

Aggregation group list.

5

Total packets/bytes collected per second for each protocol.

3

Top N protocols sorted by color.

 

Step 3 Choose the data source to monitor from the Data Source list.

Step 4 Choose the aggregation group from the Aggregation list.

Step 5 Choose one of the following from the Variable list:

Total Packets—Sorts the addresses based on the number of total packets.

Total Bytes—Sorts the addresses based on the number of total bytes.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name


Viewing the DiffServ Application Statistics Cumulative Data Table

To view the DiffServ Application Statistics Cumulative Data table:


Step 1 In the contents, click Application Stats.

Step 2 Click the Cumulative Data radio button.

The DiffServ Application Statistics Cumulative Data Table (Table 4-23) displays.

Table 4-23 DiffServ Application Statistics Cumulative Data Table 

Field
Description

Protocol Name

Name of the monitored protocol.

Packets

Total packets collected over the last interval.

Bytes

Total bytes collected over the last interval.


Step 3 Choose the data source and profile to monitor from the Data Source-Profile list.

Step 4 Choose the aggregation group from the Aggregation list.

Step 5 To view a specific protocol, enter the protocol in the Protocol text box, then
click Filter.

The specified protocol displays.


TipTo view the full protocol name, move the cursor over the protocol name.

To turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Viewing the DiffServ Host Statistics Current Rates Table

To view the DiffServ Host Statistics Current Rates table:


Step 1 In the contents, click Host Stats.

Step 2 Click the Current Rates radio button.

The DiffServ Host Statistics Current Rates Table (Table 4-24) displays.

Table 4-24 DiffServ Host Statistics Current Rates Table 

Field
Description

Address

Address of the host.

Type

Type of protocol monitored.

In Packets/s

Total number of input packets collected per second.

Out Packets/s

Total number of output packets collected per second.

In Bytes/s

Total number of input bytes collected per second.

Total Bytes/s

Total number of output bytes collected per second.


Step 3 Choose the data source and profile to monitor from the Data Source-Profile list.

Step 4 Choose the aggregation group from the Aggregation list.

Step 5 To view a specific address, enter the address in the Address text box, then
click Filter.

The specified address displays.


TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.



Displaying Host Conversation Details From the DiffServ Host Statistics Table

To view the Host Conversations details table, click the address name in the Address column. The Host Conversations Table (Table 4-25) displays.

Table 4-25 Host Conversations Table

Field
Description

Source

Source host address of the conversation.

Application

The application protocol used on the conversation.

Destination

Destination host address of the conversation.

Packets

Number of packets during the conversation.

Octets

Number of octets during the conversation.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing Real-Time Data from the DiffServ Host Statistics Table

You can view real-time data in a graphical format for a specific host in the DiffServ Host Statistics table.

Choose the host from the table, then click Real-Time. The Real-Time Graph (Figure 4-14)displays.


Note The Real-Time button is disabled for NetFlow-based data sources.


Figure 4-23 Real-Time Graph

Viewing Reports from the DiffServ Host Statistics Table

You can view reports directly from the DiffServ Host Statistics table. Choose the host you wish to view a report on, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected host and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the DiffServ Host Statistics Top N Chart

To view the DiffServ Top N Host Statistics chart:


Step 1 In the contents, click Host Stats.

Step 2 Click the TopN Chart radio button.

The DiffServ Top N Host Statistics Chart (Figure 4-24) displays.

Figure 4-24 DiffServ Top N Host Statistics Chart

1

Data Source-Profile list.

4

Variable list.

2

Aggregation group list.

5

Total packets/bytes collected per second for each address.

3

Top N host addresses sorted by color.

   

Step 3 Choose the data source and profile from the Data Source-Profile list.

Step 4 Choose the aggregation group from the Aggregation list.

Step 5 Choose one of the following from the Variable list:

Total Packets—Sorts the addresses based on the number of total packets.

Total bytes—Sorts the addresses based on the number of total bytes.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing the DiffServ Host Statistics Cumulative Data Table

To view the DiffServ Host Statistics Cumulative Data table:


Step 1 In the contents, click Host Stats.

Step 2 Click the Cumulative Data radio button.

The DiffServ Host Statistics Cumulative Data Table (Table 4-26) displays.

Table 4-26 DiffServ Host Statistics Cumulative Data Table 

Field
Description

Address

Address of the host.

Type

Type of protocol monitored.

In Packets

Total number of packets received over the last time interval.

Out Packets

Total number of packets sent over the last time interval.

In Bytes

Total number of bytes received over the last time interval.

Out Bytes

Total number of bytes sent over the last time interval.


Step 3 Choose the data source to monitor from the Data Source list.

Step 4 Choose the aggregation group from the Aggregation list.

Step 5 To view a specific address, enter the address in the Address text box, then
click Filter.

The specified address displays.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To sort a table variable by percentage of the total, click on the column header. The variable is listed in descending order according to the percentage of the total.


Monitoring Response Time Data

Cisco NAM VSB monitors TCP packet flow between client and server and measures response time data to provide more visibility into application response times (ART) and network latency. Cisco NAM VSB response time monitoring provides end-to-end response times and to help you locate possible network and application delays.


Note NAM 4.2 does not support IPv6 for response time monitoring.


You can set up the NAM to measure network round trip time (RTT), client response time, server response time, and total transaction time to improve application performance. Figure 4-25 shows the various points in network packet flow where the NAM gathers data and the trip times you can monitor.

Figure 4-25 NAM Application Response Time Measurements

Figure 4-26 shows a representation of total transaction time as opposed to application response time.

Figure 4-26 Transaction Time versus Response Time Measurements

Table 4-27 lists and describes the ART metrics measured by Cisco NAM VSB.

Table 4-27 Application Response Time Metrics 

Metric
Description

Response Time (average)

Response Time is the amount of time it takes a server to send the initial response to a client request as seen by the NAM. This is the initial server think time. Increases in the response time usually indicate problems with server resources, such as the CPU, Memory, Disk, or I/O due to a lack of necessary resources or a poorly written application.

Response Time (minimum)

Response Time (maximum)

Number of responses

Total number of responses observed during the monitoring interval

Number of late responses

Total number of responses that exceed the Max Response Time; see Setting Up Response Time Configuration, page 3-34.

Number of responses by response time

7-bucket histogram; see Setting Up Response Time Configuration, page 3-34.

Client Bytes

Number of TCP bytes sent from a client during the monitoring interval.

Server Bytes

Number of TCP bytes sent from a server

Client Packets

Number of TCP packets sent from a client

Server Packets

Number of TCP packets sent from a server

Number of connections (new sessions)

Number of TCP connections (new sessions) made during the monitoring interval.

Completed Sessions

Number of TCP connections closed

Refused Sessions

Number of TCP connections refused by a server

Unresponsive Sessions

Number of times a server does not reply to TCP SYN requests within a timeout period

Session Duration

Average duration of the TCP sessions

Application Delay (AD) - average

AD is the time it takes a server application (for example, a web server application) to respond to a request. AD is the time between the client request arriving at the server application and the first response being returned by the application.

Application Delay - minimum

Application Delay - maximum

Network Delay (ND) - average

The network round trip (flight time) between a client and a server through the NAM switch or router. ND is equal to the sum of CND and SND. The network round trip (flight time) between a client and a server through the NAM switch or router. ND is equal to the sum of CND and SND. NAM measures the ND using TCP 3-way handshakes. If there are no new TCP connections made during the monitoring interval, this metric is not reported.

Network Delay - minimum

Network Delay - maximum

Client Network Delay (CND) - average

CND is the network round trip time (or flight time) between a client and the NAM switch or router.

In WAAS monitoring, CND from a WAE client data source represents the network RTT between the client and its edge WAE, while CND from the WAE server data source represents the WAN RTT (between the edge and core WAEs).

Client Network Delay - minimum

Client Network Delay - maximum

Server Network Delay (SND) - average

SND is the network round-trip time between a server and the NAM switch or router.

In WAAS monitoring, CND from a Server data source represents the network RTT between the server and its core WAE.

Server Network Delay - minimum

Server Network Delay - maximum

Total Delay (TD) - average

TD is the total amount of time from the first packet of a client request until the client receives the first response packet from the application server. Total Delay (TD) is the sum of the Network Delay (ND) and the Application Delay (AD).

Use TD with care because it is not measured directly and mixes the response time metric (SRT) with the connection metric (CND).

Total Delay - minimum

Total Delay - maximum

Total Transaction Time - average

Total amount of time from the first packet of a client request until the client receives the final response packet from the server. TTT is a key indicator for detecting application performance anomalies.

Transaction times might vary depending upon application types. Relative thresholds are useful in this situation.

Total Transaction Time - minimum

Total Transaction Time - max

Number of Transactions

The number of transactions completed during the measurement interval.

Data Transfer Time - average

Average elapsed time from the first server-response packet to the last server-response packet, excluding retransmission time. Data transfer time is always measured in the server-to-client direction and can be used to detect problems for a particular type of transaction of an application.

Number of Packets Retransmitted

Number of TCP packets retransmitted during the monitoring interval. (The metric for the client-to-server direction is not provided.)

Number of Bytes Retransmitted

The number of retransmitted server-to-client bytes. (The metric for the client-to-server direction is not provided.)

Retransmission Delay - average

Average time to retransmit lost packets per transaction.

Round Trip Time (RTT)

Average round trip time for the client to acknowledge (ACK) a server TCP packet.


To view response time data, click Monitor > Response Time. Cisco NAM VSB provides network and application response time (ART) monitoring for the following:

Server Application Responses

Viewing Server Application Responses

Server Application Responses

The Server Application Responses window displays by default when you click Monitor > Response Time. The All Data window also displays by default. Click to view the TopN Chart instead to view the most active network.

Viewing Server Application Responses

Viewing Server Application Transactions

Server Network Response Time

Viewing Server Application Responses

The Server Application Response Time window provides a summary of the application response times (ART) per server application displaying the server IP address, application used, and minimum, average, and maximum response times for the following:

Application delay

Network delay

Total delay


Note NAM uses the TCP three-way handshake to calculate network delay. If there are no new TCP connections during the polling interval, the NAM GUI displays a dash (-) for the delay value indicating there is no delay data for that interval.


Figure 4-27 shows the Server Application Responses Window.

Figure 4-27 Server Application Responses Window

Table 4-28, Server Application Responses, provides definitions of the Server Application Responses fields.

Table 4-28 Server Application Responses

Field
Definition

Server

Name or IP address of the server

App

Application currently running

# of Clients

Total number of clients

# of Responses

Total number of responses observed during the monitoring interval

Application Delay

Minimum, average, and maximum values of AD, the time it takes a server application (for example, a web server application) to respond to a request. AD is the time between the client request arriving at the server application and the first response being returned by the application.

Network Delay

Minimum, average, and maximum values of ND. ND the network round trip (flight time) between a client and a server through the NAM switch or router. ND is equal to the sum of CND and SND.

Total Delay

Total amount of time from the first packet of a client request until the client receives the first response packet from the application server.


Click Multi Segment to see response time metrics of the selected server or client-server pair from applicable data sources. See Viewing Response Time across Multiple WAAS Segments for more information.

Click Details to see the Server ART Details. See Viewing Server ART Details for more information.

Viewing Server ART Details

To view details for a specific server, click the radio button in the Select column, then click Details. The Server ART Detail window displays detailed ART information from the server. Table 4-29 provides a detailed description of the fields of the Server Application Response Time Details Window.

Table 4-29 Server Application Response Time Details 

Field
Description

Server Name

Name or IP address of server being measured

Server Address

IP address of server

Application

Application being used by server

Number of Clients

Total number of clients

Client Bytes

Number of TCP bytes sent from a client during the monitoring interval.

Client Packets

Number of TCP bytes sent from a client during the monitoring interval.

Server Bytes

Number of TCP bytes sent from a server

Server Packets

Number of TCP packets sent from a server

Number of Responses

Total number of responses observed during the monitoring interval

Application Delay

This column displays the minimum, average, and maximum values of AD, the time it takes a server application (for example, a web server application) to respond to a request. AD is the time between the client request arriving at the server application and the first response being returned by the application.

Network Delay

This column displays the minimum, average, and maximum values of ND. ND the network round trip (flight time) between a client and a server through the NAM switch or router. ND is equal to the sum of CND and SND.

Server Network Delay

Also called Server Connection Time, this is the round-trip time between the server-site NAM (or WAAS-FA) and server during TCP connection setup.

Measured on the server segment, this metric indicates the condition of a particular network segment. Server network delay is useful in isolating the problem.

Total Delay

Total amount of time from the first packet of a client request until the client receives the first response packet from the application server.

Number of Transactions

The number of transactions completed during the measurement interval.

Transaction Time

Time (ms) elapsed from the start of a client request to the completion of server response. Transaction times might vary significantly depending upon application types. Relative thresholds are useful in this situation.

Transaction time is a key indicator when detecting application performance anomalies.

App Response Time

Amount of time it takes a server to send the initial response to a client request as seen by the NAM.

Data Transfer Time

Time from the first server-response packet to the last server-response packet, excluding retransmission time. Data transfer time is always measured in the server-to-client direction and can be used to detect problems for a particular type of transaction of an application.

Average Retransmission Time

Average inter-packet time intervals started by retransmitted packets from server to client in each transaction, measured at server-site.

Bytes Retransmitted

The number of retransmitted server-to-client packets.

Packets Retransmitted

The number of retransmitted server-to-client bytes.

Round Trip Time

Time elapsed from a server-to-client packet to its client-to-server acknowledgement in each transaction. Round trip time is a key indicator for network-caused problems. Check WAN interface utilization, CND, and SND to isolate the problem.

Number of Round Trips

Number of times a server-to-client packet or client-to-server acknowledgement occurs in each transaction.

Connections
(New Sessions)

Number of TCP connections (new sessions) made during the monitoring interval.

Completed Sessions

Number of TCP connections closed

Refused Sessions

Number of TCP connections refused by a server

Unresponsive Sessions

The number of TCP connections unresponsive during the measurement interval, this metric indicates a WAN problem if client-site measurement is significantly large than the server-site measurement. Useful to compare client-side measurements with server-side measurements.

Session Duration

Average duration of the TCP sessions.


Viewing Reports from the Server Application Response Time Window

You can view reports directly from the Server Application Response Time window. Choose an item of interest from the active server/client application list, then click Report. If a report does not already exist for the entry, the NAM will create a transaction time metrics report based on the parameters of the selected server and data source.

The report function is context sensitive. If you click Monitor > Response Time > Server -- Response Times, select an entry from those listed and click Report, the NAM will create a Total Transaction Time report for the selected entry.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Application Response Time TopN Chart

Click TopN Chart to view the most active network. To view the TopN Chart for Server Application Response Time:


Step 1 Click Monitor > Response Time.

The Server Application Response Time window displays.

Step 2 Click the TopN Chart radio button.

The Server Application Response Time Top N Chart (Figure 4-28) displays.

Figure 4-28 Server Application Response Time Top N Chart

1

Data Source list.

4

Protocol used by server.

2

Variable list.

5

Variable value displayed per second.

3

Top N server addresses sorted by color.

   

Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 Choose the sorting option from the Variable list.

The specified option displays in the chart.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.


Viewing Server Application Transactions

The Server Application Transaction window displays when you click Monitor > Response Time > Server -- Transactions. The All Data window also displays by default. You can also view the TopN Chart to view the most active network.

The Server Application Transactions window provides a summary of the server application transaction response times (ART) per server application displaying the server IP address, application used, and minimum, average, and maximum response times for the following:

Application Response Time

Data Transfer Time

Retransmit Time

Round Trip Time


Note NAM uses the TCP three-way handshake to calculate network delay. If there are no new TCP connections during the polling interval, the NAM GUI displays a dash (-) for the delay value indicating there is no delay data for that interval.


Figure 4-29 shows the Server Application Transactions Window.

Figure 4-29 Server Application Transactions Window

Table 4-30, Server Application Transactions Metrics, provides definitions of each field of the Server Application Transactions window.

Table 4-30 Server Application Transactions Metrics 

Field
Description

Server

Name or IP address of the server

App

Application currently running

# of Clients

Total number of clients

# of Trans

Total number of transactions

Trans Time

Time (ms) elapsed from the start of a client request to the completion of server response. Transaction times might vary significantly depending upon application types. Relative thresholds are useful in this situation.

Transaction time is a key indicator when detecting application performance anomalies.

App Resp Time

Amount of time it takes a server to send the initial response to a client request as seen by the NAM.

Data Transfer Time

Average elapsed time from the first server-response packet to the last server-response packet, excluding retransmission time. Data transfer time is always measured in the server-to-client direction and can be used to detect problems for a particular type of transaction of an application.

Retrans Time

Average time to retransmit lost packets, per transaction.

Round Trip Time

Average round trip time for the client to acknowledge (ACK) a server TCP packet.


Click Details to see the Server ART Details. See Viewing Server ART Details for more information.

Click Multi Segment to see response time metrics of the select server or client-server pair from applicable data sources. See Viewing Response Time across Multiple WAAS Segments for more information.

Viewing Server Application Transaction Details

To view details for a specific server, click the radio button in the Select column, then click Details. The Server ART Detail window displays. You can view detailed information from the server such as server network delay response time, a histogram, octet counts, and maximum and minimum values as well as a chart displaying the response time distribution.

Table 4-29 provides a detailed description of the fields of the Server Application Transaction Window.

Viewing Reports from the Server Application Transactions Window

You can view reports directly from the Server Application Transactions window. Choose an item of interest from the active server/client application list, then click Report. If a report does not already exist for the entry, the NAM will create a transactions metrics report based on the parameters of the selected server and data source.

The report function is context sensitive. If you click Monitor > Response Time >
Server -- Transactions, select an entry from those listed and click Report, the NAM will create a Total Transactions report for the selected entry.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Server Application Transactions TopN Chart

Click TopN Chart to view the most active network. To view the TopN Chart for Server Application Transactions:


Step 1 Click Monitor > Response Time.

The Server Application Transactions window displays.

Step 2 Click the TopN Chart radio button.

The Server Application Response Time Top N Chart (Figure 4-30) displays.

Figure 4-30 Server Application Transactions Top N Chart

1

Data Source list.

4

Protocol used by server.

2

Variable list.

5

Variable value displayed per second.

3

Top N server addresses sorted by color.

 

Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 Choose the sorting option from the Variable list.

The specified option displays in the chart.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.


Server Network Response Time

The Server Network Response Time window shows the network connectivity and responsiveness between the server and the switch.

Figure 4-31 shows the Server Network Response Time Window. Table 4-31, Server Network Response Times, provides definitions of each field of the Server Network Response Times window.


Note NAM uses the TCP three-way handshake to calculate network delay. If there are no new TCP connections during the polling interval, the NAM GUI displays a dash (-) for the delay value indicating there is no delay data for that interval.


Figure 4-31 Server Network Response Time Window

Table 4-31 Server Network Response Times

Field
Description

Server

Server name or IP address

App

Application in use

# of Clients

Number of active client sessions

# of Conns

Number of active connections

Server Network Delay

SND is the network round trip time (or flight time) between a server and the NAM switch, router, or managed device (minimum, average, and maximum server network delay in ms.)

Total Net Delay

This column displays the minimum, average, and maximum values of TD. TD is the total amount of time from the first packet of a client request until the client receives the first response packet from the application server. Total Delay (TD) is the sum of the Network Delay (ND) and the Application Delay (AD).

Octets

Number of server octets and client octets transmitted.


Click Details to see the Server ART Details. See Viewing Server ART Details for more information.

Click Multi Segment to see response time metrics of the select server or client-server pair from applicable data sources. See Viewing Response Time across Multiple WAAS Segments for more information.

Click Reports to view reports directly from the Server Network Response Time window. See Viewing Reports from the Server Network Response Time Window, for more information.

Viewing Server-Client Application Response Time

Viewing Server Network Response Time Details

Table 4-32 provides a detailed description of the fields of the Server Network Response Time Window.

Table 4-32 Server Network Response Time Window Details

Field
Description

Server

Name of server being measured

App

Application being used by server

# of Clients

Number of clients attached to server

# of Conns

Number of active connections with the server

Server Net Delay (SND)

This column displays the minimum, average, and maximum values of SND. SND is the network round trip time (or flight time) between a server and the NAM switch or router.

Total Net Delay

This column displays the minimum, average, and maximum values of TD. TD is the total amount of time from the first packet of a client request until the client receives the first response packet from the application server. Total Delay (TD) is the sum of the Network Delay (ND) and the Application Delay (AD).

Octets

For server, number of octets (bytes) sent from the server to the client.

For client, number of octets (bytes) sent from the client to the server.


Viewing Reports from the Server Network Response Time Window

You can view reports directly from the Server Network Response Time window. Choose the server you wish to view a report on, then click Report. If a report does not already exist for the entry, the NAM will create a transactions metrics report based on the parameters of the selected server and data source.

The report function is context sensitive. If you click Monitor > Response Time > Server -- Network, select an entry from those listed and click Report, the NAM will create a Total Response Time report for the selected entry.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Server Network Response Time Top N Chart

Click TopN Chart to view the most active network. To view the TopN Chart for Server Application Response Time:


Step 1 Click Monitor > Response Time.

The Server Application Response Time window displays.

Step 2 Click Server Network in the menu area.

The Server Network Response Time window displays.

Step 3 Click the TopN Chart radio button.

The Server Network Response Time Top N Chart (Figure 4-32) displays.

Figure 4-32 Server Network Response Time Top N Chart

1

Data Source list.

4

Protocol used by server.

2

Top N server addresses sorted by color.

5

Variable value displayed per second.

3

Variable list.

   

Step 4 Choose the data source to be monitored from the Data Source list.

Step 5 Choose the sorting option from the Variable list.

The specified option displays in the chart.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.


Server-Client Application Response Times

The Server/Client ART window provides a summary of the server/client application response time data. You can select an entry in the window to view more detailed information.

Viewing Server-Client Application Response Time

Viewing the Server-Client Transactions

Viewing the Server-Client Network Response Time

Viewing Server-Client Application Response Time

To view the Server-Client Application Response Time window:


Step 1 Click Monitor > Response Time.

The Server Application Response Time window displays.

Step 2 In the contents, click Server-Client Application.

Figure 4-33 shows the Server/Client Application Response Time window.


Note NAM uses the TCP three-way handshake to calculate network delay. If there are no new TCP connections during the polling interval, the NAM GUI displays a dash (-) for the delay value indicating there is no delay data for that interval.


Figure 4-33 Server/Client Application Response Time Window

The Server/Client Application Response Time Window (Table 4-33) displays.

Table 4-33 Server/Client Application Response Time Window  

Field
Description

Server

Host address of the server.

Client

Host address of the client.

App

Application being used by server

# of Responses

Total number of responses observed during the monitoring interval

Application Delay (AD)

This column displays the minimum, average, and maximum values of AD, the time it takes a server application (for example, a web server application) to respond to a request. AD is the time between the client request arriving at the server application and the first response being returned by the application.

Network Delay
(ND)

This column displays the minimum, average, and maximum values of ND, the network round trip (flight time) between a client and a server through the NAM switch or router. ND is equal to the sum of CND and SND.

Total Delay (TD)

TD is the total amount of time from the first packet of a client request until the client receives the first response packet from the application server. Total Delay (TD) is the sum of the Network Delay (ND) and the Application Delay (AD).


Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 Choose a variable to filter from the filter list.

Step 5 Enter the name of the variable to filter in the filter box, then click Filter.

The specified variable displays.


Click Details to see the Server ART Details. See Viewing Server ART Details for more information.

Click Multi Segment to see response time metrics of the select server or client-server pair from applicable data sources. See Viewing Response Time across Multiple WAAS Segments for more information.


TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.


Viewing Server-Client Application Response Time Details

To view details for a specific client/server conversation, click the radio button in the Select column, and click Details. The Server/Client Response Time Detail window displays. You can view detailed information from the client/server conversation as well as a chart displaying the response time distribution.

Viewing Reports from the Server-Client Application Response Time Window

You can view reports directly from the Server-Client Response Time table. Choose the protocol you wish to view a report on, then click Report. The Basic Reports graph displays a Total Response Time report based on the parameters of the selected server and data source entry. If a report does not already exist for the entry, the NAM will create a response time metrics report based on the parameters of the selected server and data source.

The report function is context sensitive. If you click Monitor > Response Time > Server-Client -- Network, select an entry from those listed and click Report, the NAM will create a Total Response Time report for the selected entry.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Server/Client Application Response Time Top N Chart

To view the Client/Server Response Time Top N chart:


Step 1 In the contents menu, click Server-Client Application.

Step 2 Click the TopN Chart radio button.

The Client/Server Application Response Time Top N Chart (Figure 4-34) displays.

Figure 4-34 Client/Server Application Response Time Top N Chart

1

Data Source list.

4

Top N clients sorted by color.

2

Variable list.

5

Protocol used for the conversation.

3

Top N servers sorted by color.

6

Variable value (per second) for each client/server conversation.


Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 Choose the sorting option from the Variable list.

The specified option displays in the chart.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.


Viewing Response Time across Multiple WAAS Segments

Use the Response Time Across Multiple Segments window to monitor end-to-end WAAS traffic. This window provides correlation of data from different WAE devices and data sources and enables you to view and compare response time metrics from multiple WAAS segments (data sources).

From Any Response Time window, select a server or a client-server pair, then click Multi Segment. The Response Time Across Multiple Segments window displays, as shown in Figure 4-35. The Individual Data Sources option displays by default and lists all configured data sources. See Table 4-27, Application Response Time Metrics, for a description of the metrics displayed on the Response Time Across Multiple Segments window.

Figure 4-35 Viewing Response Time Across Multiple Segments - Individual Data Sources

The Multi Segment window shows response time metrics of the selected server or client-server pair from applicable data sources. More relevant metrics are shown in bold font.

To view Correlated Data Sources, shown in Figure 4-36, click the Correlated Data Sources radio button.


Note The Correlated Data Sources option is available only for Server/Client, not server response time.


Figure 4-36 Viewing Response Time Across Multiple Segments - Correlated Data Sources

See Table 4-27, Application Response Time Metrics, for more information.

Viewing the Server-Client Transactions

The Server-Client Application Transaction window displays when you click Monitor > Response Time > Server-Client -- Transactions. The All Data window also displays by default. You can also view the TopN Chart to view the most active network.

The Server-Client Application Transactions window provides a summary of the server application transaction response times (ART) per server application displaying the server IP address, application used, and minimum, average, and maximum response times for the following:

Application Response Time

Data Transfer Time

Retransmit Time

Round Trip Time


Note NAM uses the TCP three-way handshake to calculate network delay. If there are no new TCP connections during the polling interval, the NAM GUI displays a dash (-) for the delay value indicating there is no delay data for that interval.


Table 4-34 Server-Client Transactions Response Time Window  

Field
Description

Server

Host address of the server.

Client

Host address of the client.

App

Application being used by server

# of Trans

Total number of responses observed during the monitoring interval

Trans Time

Total amount of time from the first packet of a client request until the client receives the final response packet from the server. TTT is a key indicator for detecting application performance anomalies.

App Resp Time

Amount of time it takes a server to send the initial response to a client request as seen by the NAM.

Data Transfer Time

Average elapsed time from the first server-response packet to the last server-response packet, excluding retransmission time. Data transfer time is always measured in the server-to-client direction and can be used to detect problems for a particular type of transaction of an application.

Retrans Time

Average time to retransmit lost packets, per transaction.

Round Trip Time

Average round trip time for the client to acknowledge (ACK) a server TCP packet.


Click Details to see the Server ART Details. See Viewing Server ART Details for more information.

Click Multi Segment to see response time metrics of the select server or client-server pair from applicable data sources. See Viewing Response Time across Multiple WAAS Segments for more information.

Viewing the Server-Client Network Response Time

The Server-Client Network Response Time window shows information about network connectivity (also known as network flight time) between servers and clients.

To view the Server/Client Network Response Time window:


Step 1 In the contents, click Server-Client Network.

Figure 4-37 shows the Server-Client Network Response Time window.


Note NAM uses the TCP three-way handshake to calculate network delay. If there are no new TCP connections during the polling interval, the NAM GUI displays a dash (-) for the delay value indicating there is no delay data for that interval.


Figure 4-37 Server-Client Network Response Time Window

Table 4-35 describes the fields of the Server-Client Network Response Time window.

Table 4-35 Server-Client Network Response Time Window  

Field
Description

Server

Host address of the server.

Client

Host address of the client.

App

Application being used by server

# of Conns

Current number of connections

Client Network Delay

Minimum, average, and maximum values of time

Server Network Delay

Minimum, average, and maximum values of total network delay

Network Delay

Minimum, average, and maximum values of total network delay


Step 2 Choose the data source to be monitored from the Data Source list.

Step 3 Choose a variable to filter from the filter list.

Step 4 Enter the name of the variable to filter in the filter box, then click Filter.

The specified variable displays.

Click Details to see the Server ART Details. See Viewing Server ART Details for more information.

Click Multi Segment to see response time metrics of the select server or client-server pair from applicable data sources. See Viewing Response Time across Multiple WAAS Segments for more information.


Tip To turn off auto refresh, uncheck the Auto Refresh check box.



Tip To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.



Viewing Server-Client Response Time Details

To view details for a specific client/server conversation, click the radio button in the Select column, and click Details. The Server/Client Response Time Detail window displays detailed information from the client/server conversation as well as a chart displaying the response time distribution.

Viewing Reports from the Server-Client Response Time Window

You can view reports directly from the Server-Client Response Time table. Choose the protocol you wish to view a report on, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected client/server and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Server-Client Network Response Time TopN Chart

To view the Server-Client Network Response Time Top N chart:


Step 1 In the contents, click Server-Client.

Step 2 Click the TopN Chart radio button.

The Server-Client Network Response Time Top N Chart (Figure 4-38) displays.

Figure 4-38 Client/Server Network Response Time Top N Chart

1

Data Source list.

4

Top N servers sorted by color.

2

Top N clients sorted by color.

5

Protocol used for the conversation.

3

Variable list.

6

Variable value (per second) for each client/server conversation.


Step 3 Choose the data source to be monitored from the Data Source list.

Step 4 Choose the sorting option from the Variable list.

The specified option displays in the chart.



TipTo turn off auto refresh, uncheck the Auto Refresh check box.

To view the full protocol name, move the cursor over the protocol name in the Protocol column of the table.


Viewing Interface Statistics Data

To view the various data collected for the managed device, click Monitor > Managed Device to view the Interface Statistics Current Rates table. You can also view the TopN Interface Stats Chart or Interface Stats Cumulative data using the radio button.

This feature allows you to monitor both the virtual and physical interfaces on the VSM designated as a managed device.

See the following sections for more information about the views of the Interface Statistics table:

Viewing the Interface Stats Current Rates Table.

Viewing the Top N Interface Stats Chart.

Viewing the Interface Stats Cumulative Data Table.

Viewing the Interface Stats Current Rates Table

The Interface Stats Current Rates table enables you to view the various data collected for the router. The information displayed represents the data collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Interface Stats Current Rates table:


Step 1 Click Monitor > Managed Device, or if you are viewing a different Interface Stats window, click the Current Rates radio button.

The Interface Stats Current Rates Table (Table 4-36) displays.

Table 4-36 Interface Stats Current Rates Table 

Field
Description

Interface

Interface number.

In % Utilization

Utilization percentage of the port.

Out % Utilization

Utilization percentage of the port.

In Packets/s

Number of packets collected per second.

Out Packets/s

Number of packets sent out per second.

In Bytes/s

Number of bytes collected per second.

Out Bytes/s

Number of bytes sent out per second.

In Non-Unicasts/s

Number of non-unicasts collected per second.

Out Non-Unicasts/s

Number of non-unicasts sent out per second.

In Discards/s

Number of discards collected per second.

Out Discards/s

Number of discards sent out per second.

In Errors/s

Number of errors collected per second.

Out Errors/s

Number of errors sent out per second.


Step 2 Enter the name of the to filter in the Filter text box, then click Filter.

The specified interface name displays.


Tip To turn off auto refresh, uncheck the Auto Refresh check box.



Viewing Interface Details

To view packet distribution details on a specific port or interface, click the number of the port in the Port Name column or the number of the interface in the Interface column. The detail window displays a chart that shows. the packet distribution per second on the specified port or interface.

Viewing Real-Time Traffic Data from the Interface Stats Table

You can view real-time data in a graphical format for a specific interface in the Interface Stats table. Choose the interface from the table, then click Real-Time. The Real-Time Graph (Figure 4-39) displays.


Note The Real-Time button is disabled for NetFlow-based data sources.


Figure 4-39 Real-Time Graph

Viewing Reports from the Interface Stats Table

You can view reports directly from the Interface Stats table. Choose the interface for which to view a report, then click Report. The Basic Reports graph displays. If a report is not configured, the Basic Reports screen appears and a new report is created for the selected port and data source.

For more information on viewing and creating reports, see Chapter 5, "Creating and Viewing Reports."

Viewing the Top N Port Stats Chart

The Port Stats Top N Chart enables you to view the various data collected for each port in a graphical format. The information displayed represents the data collected per second over the last time interval.

To view the Top N Port Stats chart:


Step 1 Click the TopN Chart radio button.

The Top N Port Stats Chart (Figure 4-40) displays.

Figure 4-40 Top N Port Stats Chart

1

Variable list.

3

Variable value (per second) for each switch port.

2

Top N switch ports.

   

Step 2 Choose one of the following from the Variable list:

Utilization—Sorts the interface number based on the utilization percentage. If the utilization percentage is less than 0.1%, the percentage is displayed as 0.0% in the chart.


Note Utilization percentages will not be available for virtual interfaces.


Dropped Events—Sorts the interface number based on the number of dropped events.

Bytes—Sorts the interface number based on the number of bytes.

Packets—Sorts the interface number based on the number of packets.

Broadcast Pkts—Sorts the interface number based on the number of broadcast packets.

Multicast Pkts—Sorts the interface number based on the number of multicast packets.

CRC Align Errors—Sorts the interface number based on the number of CRC Align errors.

Undersize Pkts—Sorts the interface number based on the number of undersize packets.

Oversize Pkts—Sorts the interface number based on the number of oversize packets.

Fragments—Sorts the interface number based on the number of fragments.

Jabbers—Sorts the interface number based on the number of jabbers.

Collisions—Sorts the interface number based on the number of collisions.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing the Top N Interface Stats Chart

The Interface Stats Top N Chart enables you to view the various data collected for each interface in a graphical format. The displayed information represents the data collected per second over the last time interval.

To view the Top N Interface Stats chart:


Step 1 Click the TopN Chart radio button.

The Top N Interface Stats Chart (Figure 4-41) displays.

Figure 4-41 Top N Interface Stats Chart

1

Variable list.

3

Variable value (per second) for each interface.

2

Top N interfaces.

   

Step 2 Choose one of the following from the Variable list:

In Packets/s—Sorts the interface number based packets collected per second.

Out Packets/s—Sorts the interface number based on the number of packets sent out per second.

In Bytes/s—Sorts the interface number based on the number of bytes collected per second.

Out Bytes/s—Sorts the interface number based on the number of bytes sent out per second.

In Non-Unicast Pkts/s—Sorts the interface number based on the number of non-unicast packets collected per second.

Out Non-Unicast Pkts/s—Sorts the interface number based on the number of non-unicast packets sent out per second.

In Errors/s—Sorts the interface number based on the number of errors collected per second.

Out Errors/s—Sorts the interface number based on the number of errors sent out per second.

In Discards/s—Sorts the interface number based on the number of discards collected per second.

Out Discards/s—Sorts the interface number based on the number of discards sent out per second.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing the Interface Stats Cumulative Data Table

The Interface Stats Cumulative Data table enables you to view the various data collected for the router. The displayed information represents the total data collected since the collection was created or since the NAM was restarted. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the Interface Stats Cumulative Data table:


Step 1 Click the Cumulative Data radio button.

The Interface Stats Cumulative Data Table (Table 4-37)displays.

Table 4-37 Interface Stats Cumulative Data Table 

Field
Description

Interface

Interface number.

In Packets/s

Number of packets collected per second.

Out Packets/s

Number of packets sent out per second.

In Bytes/s

Number of bytes collected per second.

Out Bytes/s

Number of bytes sent out per second.

In Non-Unicasts/s

Number of non-unicasts collected per second.

Out Non-Unicasts/s

Number of non-unicasts sent out per second.

In Discards/s

Number of discards collected per second.

Out Discards/s

Number of discards sent out per second.

In Errors/s

Number of errors collected per second.

Out Errors/s

Number of errors sent out per second.


Step 2 To refresh the data in the table, click Refresh.

Step 3 Enter the interface name to filter in the Filter text box, then click Filter.

The specified interface name displays.


Viewing Interface Details

To view packet distribution details on a specific interface, click the interface number in the Interface column. The detail window displays with a chart that shows the total packet distribution on the specified interface.

Viewing Managed Device Health

You can use the NAM Traffic Analyzer to view system health data. To view system health data collected for the managed device, choose Monitor > Managed Device, then select Health from the Content Menu.


Note This is available only for the Cisco WAAS appliances.


The Managed Device Health window is displays with a drop-down menu that provides the following options:

Managed Device Health

Managed Device Information

Crossbar Switching Fabric

Ternary Content Addressable Memory Information

Managed Device Health

The Managed Device Health window (Figure 4-42) displays two real-time graphs.

Figure 4-42 Managed Device Health Window

CPU usage within the last five seconds

CPU type

Usage for last 1 minute (%)

Usage for last 5 minutes (%)

Traffic Bandwidth

Peak %

Peak Time (For example: Mon October 1 2007, 15:26:55)

The Switch Health window also displays a matrix with the following information:

Minor Alarm (on, off)

Major Alarm (on, off)

Temperature Alarm (on, off)

Fan Status (other, ok, minorFault, majorFault, unknown)

Table 4-38 Switch Memory Information

Column
Description

Memory Type

Type of memory including DRAM, FLASH, NVRAM, MBUF, CLUSTER, MALLOC.

Used

Number of used MB for a particular memory type.

Free

Number of free MB for a particular memory type.

Largest Free

Number of largest contiguous free MB for a particular memory type.


Managed Device Information

The Switch Information window (Figure 4-43) displays.

Figure 4-43 Switch Information Window

Table 4-39 Switch Information 

Field
Description

Name

Name an administrator assigned to this managed node, this is the node's fully-qualified domain name.

Hardware

A textual description which should contain the manufacturer's name for the physical entity and be set to a distinct value for each version or model of the physical entity.

Backplane

The chassis backplane type.

Supervisor Software Version

The full name and version identification of the system's software operating-system and networking software.

UpTime

The time (in hundredths of a second) since the network management portion of the system was last re-initialized.

Location

The physical location of this node.

Contact

The textual identification of the contact person for this managed node and information on how to contact this person.

Modem

Indicates whether the RS-232 port modem control lines are enabled.

Baud rate

The baud rate in bits per second of the RS-232 port.

Power Supply

Description of the power supply being instrumented.

Power Supply Type

The power supply source:

unknown
ac
dc
externalPowerSupply
internalRedundant

Power Supply Status

The current state of the power supply being instrumented.

1: normal
2: warning
3: critical
4: shutdown
5: notPresent
6: notFunctioning

Power Redundancy Mode

Power Redundancy Mode:

The power-supply redundancy mode.
1: not supported
2: redundant
3: combined

Power Total

Total current available for FRU usage.

When Redundancy Mode is redundant, the total current available will be the capability of a power supply with the lesser power capability of the two power supplies.

When Redundancy Mode is combined, the total current available will be the sum of the capacities of all operating power supplies.

Power Drawn

Total Current Drawn by powered-on FRUs.


Crossbar Switching Fabric

This option shows the Crossbar Switching Fabric information.

Table 4-40 Crossbar Switching Fabric Information 

Field
Description

Crossbar Switching Fabric

Physical and configuration information about the module:

Active slot—Indicates the slot number of the active switching fabric module. A value of zero indicates that the active switching fabric module is either powered down or not present in the chassis.

Backup slot—Indicates the slot number of the backup switching fabric module. A value of zero indicates that the backup switching fabric module is either powered down or not present in the chassis.

Bus Only Mode Allowed—Determines the value of each module. If set to True, each and every module is allowed to run in bus-only mode. If set to False, none of the modules are allowed to run in bus-only mode. (All the non-fabric capable modules will be powered off.) Absence of fabric module results in all the fabric capable modules being powered off.

Truncated Mode Allowed—Indicates whether truncated mode is administratively enabled on the device or not.

Module Switching Mode

Indicates switching mode of the module:

busmode—Module does not use fabric. Backplane is used for both lookup and data forwarding.

crossbarmode—Module uses the backplane for forwarding decision and fabric for data forwarding.

dcefmode—Module uses fabric for data forwarding and local forwarding is enabled.

Module-Channel

Module slot number

Module-Status

Status of the fabric channel at the module

Fabric Status

Status of the fabric channel at the slot

Speed (MB)

Speed (MB/second) of the module

Module-Channel

Channel for the module

In Errors

The total number of error packets received since this entry was last initialized.

Our Errors

The total number of error packets transmitted since this entry was last initialized.

Dropped

The total number of dropped packets transmitted since this entry was last initialized.

In Utilization (%)

Input utilization of the channel for the module.

Our Utilization (%)

Output utilization of the channel for the module.


Ternary Content Addressable Memory Information

Shows the Ternary Content Addressable Memory (TCAM) (Figure 4-44) usage information. Table 4-41 lists and describes the TCAM information.

Figure 4-44 Ternary Content Addressable Memory Information

Table 4-41 Ternary Content Addressable Memory Information 

Field
Description

Security Acl Mask

Indicates that TCAM space is allocated to store ACL masks.

Security Acl Value

Indicates that TCAM space is allocated to store ACL value.

Dynamic Security Acl Mask

Indicates that TCAM space is allocated to dynamically store ACL masks.

Dynamic Security Acl Value

Indicates that TCAM space is allocated to dynamically store ACL values.

Qos Acl Mask

Indicates that TCAM space is allocated to store QoS masks.

Qos Acl Value

Indicates that TCAM space is allocated to store QoS value.

Dynamic Qos Acl Mask

Indicates that TCAM space is allocated to dynamically store QoS masks.

Dynamic Qos Acl Value

Indicates that TCAM space is allocated to dynamically store ACL values.

Layer 4 Port Operator

Indicates that TCAM space is allocated for layer 4 port operators purpose.

Interface Mapping Module

Indicates that TCAM space is allocated for interface mapping purpose.


Viewing NBAR

You can use the NAM Traffic Analyzer to view Network Based Application Recognition (NBAR) data.


Note Currently, the Nexus 1010 Virtual Services Appliance VSM doesn't support NBAR.


To view the NBAR data collected for a switch or router, select Monitor > Router or Switch > NBAR.

The NBAR Current Rates Table displays with three radio buttons above it.

You can click a radio button for:

Viewing the NBAR Current Rates Table.

Viewing the Top N NBAR Chart.

Viewing the NBAR Cumulative Data Table.

Viewing the NBAR Current Rates Table

The NBAR Current Rates table enables you to view the protocol data collected for the device. The information displayed represents the data collected per second over the last time interval. For information on setting the time interval, see the "Setting Global Preferences" section on page 3-59.

To view the NBAR Current Rates table:


Step 1 Click the Current Rates radio button.

The NBAR Current Rates Table (Table 4-42) displays.

Table 4-42 NBAR Current Rates Table 

Field
Description

Protocol/s

Protocol type.

In Packets/s

Number of packets collected per second.

Out Packets/s

Number of packets sent out per second.

In Bytes/s

Number of bytes collected per second.

Out Bytes/s

Number of bytes sent out per second.

In Bit rate/s

In bound bit rate per second.

Out Bit rate/s

Out bound bit rate per second.


Step 2 (Optional) Enter the protocol name to filter in the Filter text box, then click Filter.

The specified protocol displays.

Step 3 (Optional) Choose the interface name in the drop-down box.

The specified interface displays.

Step 4 (Optional) Choose a protocol and click Real-Time.

A Real-Time graph of the specified protocol displays.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing the Top N NBAR Chart

The NBAR Top N Chart enables you to view the various data collected for each protocol in a graphical format. The information displayed represents the data collected per second over the last time interval.

To view the NBAR Top N chart:


Step 1 Click the TopN Chart radio button.

The Top N NBAR Chart (Figure 4-45) displays.

Figure 4-45 Top N NBAR Chart

1

Interface list (for example, Fa0/0)

3

Variable value (per second) for each protocol

2

Variable list (In Packets/s, Out Packets/s, In Bytes/s, Out Bytes/s, In Bit Rate, Out Bit Rate)

4

Top N protocols


Step 2 Choose an interface from the Interface list:

Step 3 Choose one of the following from the Variable list:

In Packets/s—Sorts the interface number based on the number of in packets/s.

Out Packets/s—Sorts the interface number based on the number of out packets/s.

In Bytes/s—Sorts the interface number based on the number of in bytes/s.

Out Bytes/s—Sorts the interface number based on the number of out bytes/s.

In Bit Rate—Sorts the interface number based on the in bit rate.

Out Bit Rate—Sorts the interface number based on the out bit rate.



Tip To turn off auto refresh, uncheck the Auto Refresh check box.


Viewing the NBAR Cumulative Data Table

The NBAR Cumulative Data table enables you to view the various data collected for the switch or router. The information displayed represents the total data collected since the collection was created or since the NAM was restarted. For information on setting the time interval, see Setting Global Preferences, page 3-59.

To view the NBAR Cumulative Data table:


Step 1 Click the Cumulative Data radio button.

The NBAR Cumulative Data Table (Table 4-43) displays.

Table 4-43 NBAR Cumulative Data Table 

Field
Description

Protocol

Name of protocol.

In Packets/s

Number of packets collected per second.

Out Packets/s

Number of packets sent out per second.

In Bytes/s

Number of bytes collected per second.

Out Bytes/s

Number of bytes sent out per second.

In Bit rate/s

In bound bit rate per second.

Out Bit rate/s

Out bound bit rate per second.


Step 2 (Optional) Enter the protocol name to filter in the Filter text box, then click Filter.

The specified protocol displays.

Step 3 (Optional) Choose the interface name in the drop-down box.

The specified interface displays.

Step 4 (Optional) Choose a protocol and click Real-Time.

A Real-Time graph of the specified protocol displays.