2. Configuring new WAN RTT monitor


2.1 Prerequisite

The WAN RTT Monitor uses Cisco IOS IP Service Level Agreements (SLAs) to monitor latency between two locations, therefore either of the location, monitored using WAN RTT monitor, should have the Cisco router (IOS version 12.4 or later) with the IPSLA agent. The IPSLA agent enabled location will act as the source while the destination can be any IP in the other location

2.2 Creating a new monitor


a. Click Modules tab from the dropdown box that appears select IP SLA and then WAN Monitor

b. In the new page that appears click on the Settings tab.

c. Select Add Monitor tab to add a new location to monitor.

d. Once you submit the details you will see the summary of the monitor you are about to configure. click "Apply to device" to sumbit the details to the device.A new monitor will be created after submittting the details. Click on the path name to view the details of that monitor The scan router option checks the router for new NetFlow enabled interfaces and adds them to the corresponding router.

 

Note: If you are not able to view IPSLA enabled routers in the Source router's dropdown box, click on the "?" icon to check the SNMP parameters and then, click update to scan the router for IPSLA settings.

2.3 Customizing Test Parameters

NetFlow Analyzer uses a set of test parameters like payload, type of service(ToS), frequency and timeout for monitoring WAN performance. The test parameters are assigned default values in NetFlow Analyzer. In order to customize the test parameters, to suit your requirement, do the following.

a. In the WAN RTT Monitor page select the "Settings" tab.

b. Select "Test Parameters" and edit the following fields according to your requirement.

c. Click "Save" to save the changes.

Note: The timeout interval value should be less than the configured operation frequency value, so that if there is no response from the device, or in the event of a delay, the request is timed out and the subsequent operation is launched at the configured frequency.

2.4 Customizing Thresholds

 

NetFlow Analyzer generates alerts when threshold levels are violated. The threshold template is assingned default values in NetFlow Analyzer. In order to customize the threshold parameters, to suit your requirement, do the following.

a. In the WAN RTT Monitor page select the "Settings" tab

b. Select "Threshold Template"

c. Configure the upper and lower threshold limits for round trip time the range being 0-60000 milliseconds.

d. Click "Save" to save the changes.

 

2.5 Add IP

The Add IP option allows you to manually add an interface to be monitored.

a. In the WAN RTT Monitor page select the "Settings" tab

b. Select "Add IP"

c. Select the Source Router from the drop down list

d. Select the Source Interface

e. Specify the IP address of the corresponding interface to be monitored.

f. Click update to save the changes.

 


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