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Monitoring WAN Round Trip Time using NetFlow Analyzer
The WAN Round Trip Time monitoring feature in NetFlow Analyzer is an add-on module and requires license to run. The WAN RTT monitor is used to monitor WAN availability, Latency and Quality of Service. Alerts are triggered when the set thresholds are violated, enabling the administrators to attend to the fault in no time.
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.
The WAN Round Trip Time(RTT) Monitor of NetFlow Analyzer is an add-on tool that monitors latency between two locations. The WAN RTT monitor measures round trip time and helps resolve poor WAN performance. It is also helpful in monitoring Quality of Service(QoS) across WAN links provided by your Internet service provider(ISP) and alerts are generated when the set threshold limits are violated.
1.1 The WAN Monitor Dashboard:
The WAN Monitor Dashboard gives you a quick view about all monitors in the network and their corresponding activities. There are three tabs in the WAN Monitor Dashboard namely: "Overview", "All Monitors", and "Settings".
Overview: The "Overview" tab has four widgets that display details on least performing paths, least available paths, time wise consolidated alert for top RTT and monitorwise health report. The reports can view from the last hour to the last month.The "Overview" tab also displays Netflow Traffic Reports for source router of the monitor. You can choose the routers by clicking on the dropdown box.
All Monitors: The "All Monitors" tab displays all the available paths that are being monitored. By clicking the path name you can view path, and threshhold details along with NetFlow Traffic reports of the routers. The graphs indicatethreshold violation percentage, Error Percentage and Round Trip Time. You can also add, remove and view the history of monitors created so far using "All Monitors" tab.
Settings: The "Settings" tab helps you configure WAN settings and add devices that needs to be monitored. It has three tabs namely: "Add Monitor","Test Parameters", and "Threshold Template". You can also add device by the entering the SNMP parameters of the router.
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