Understanding Monitor Mode in Edge Services Director
Monitor mode in Edge Services Director provides you visibility into your network status and performance. Edge Services Director monitors its managed devices and maintains the information it collects from the devices in a database. Monitor mode displays this information in easy-to-understand graphs and in tables that you can sort and filter, allowing you to quickly visualize the state of your network, spot trends developing over time, and find important details.
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The main purpose and benefit of monitoring functionalities is to allow the operators to quickly monitor the health (working condition), operating efficiency, traffic-handling capacity, and performance status of the managed SDGs and configured services such as ADC, TLB, CGNAT and SFW. The SDG monitoring mechansim is an extensive and ingrained tool; it allows the operator to understand the network health and status by drilling down to all the components of SDG. The SDG status is marked as Green, Red, Orange or Gray, based on the health, availability, performance and other important KPI indicators. Red denotes an emergency condition, which is a system panic or other conditions that cause the routing platform to stop functioning. It also indicates that the device is offline or turned down. Orange denotes an alert, which can be conditions that must be corrected immediately, such as a corrupted system database. Green indicates a notice, which signifies conditions that are not error conditions but are of interest or might warrant special handling. It can also include a severity level equivalent to informational or debugging messages. Gray signifies an unknown or an unconnected device that is out of synchronization.
Packet capture is a tool that helps you to analyze network traffic and troubleshoot network problems. The packet capture tool captures real-time data packets traveling over the network for monitoring and logging. This tool is a debugging and analysis utility that you can use to identify the problematic area in a session path. A set of counters are displayed for both forward and reverse flow for all the supported services on SDG devices. Using these statistical details and values, you can obtain adequate and useful estimates regarding the total bytes count for each service in every hop and quickly, easily locate the hop where there can be a possible packet drop.
The fault management capability in Edge Services Director shows you information about the health of your network and changing conditions of your equipment. Use this diagnosis and detection mechanism to find problems with equipment, pinpoint security attacks, or to analyze trends and categories of errors. This feature includes the fault-monitoring details in the dashboard, monitoring pages, and also in a dedicated page that displays the alarms, events, and system logging messages that are generated. These charts and messages provide essential and cohesive information about system conditions, any discrepancies and malfunctioning, and protocols or components that need to be examined and debugged for better efficiency and working capacity.
It is important to identify and define the performance manager KPIs that can help the operator to measure the performance and the operational status of the services running in the SDG network. Apart from services, the operator might also interested in KPIs for the different chassis options, which are enabling the service execution in the SDG network. Different metrics such as real service instance KPIs and HA Network KPIs are collected. Such a collection cause the PM data collector and PM data aggregator to operate effectively. The following are the different sets of KPIs supported.