Media Monitoring has three functional areas: Performance Monitor, Mediatrace, and IP service-level agreement (IP SLA) video operation (VO). These three features work to aid in application monitoring and troubleshooting. Mediatrace can use Performance Monitor to provide hop-by-hop analysis of a media flow in real time, while a call is still active. IP SLA VO can be used in conjunction with Mediatrace to validate and troubleshoot a network by injecting simulated application traffic, thereby mitigating the need for a fully functioning application.
Media Monitoring specifically considers what traffic to monitor, what information to gather, where to monitor (which router, which switch interface is involved in the media flow), service-level agreements against which to measure the traffic, and finally where and which method of information transfer to network management applications.
Media Monitoring, via IPSLA VO, also provides network administrators the ability to generate synthetic media flows replicating exact video requirements to test the impact of a particular video communication (Cisco TelePresence® operations, Cisco® Unified Communications, Cisco WebEx® solutions, video surveillance, Digital Media System (DMS), IPTV, and so on) and assess the network.
Performance Monitor maintains historical data about analyzed flows traversing routers and switches. The metrics collected by Performance Monitor can be exported to a network management tool through NetFlow Version 9 or Simple Network Management Protocol (SNMP). Network management software can further analyze, summarize, and correlate this information to provide traffic profiling, baselining, and troubleshooting services for the application and network operator.
Performance Monitor has the ability to send alarms from the routers and switches through syslog and SNMP traps. Different media applications, for example, Cisco TelePresence compared to video on demand (VoD), have different sensitivities to packet loss and jitter. These varying sensitivities can be encoded into Performance Monitor threshold evaluations and actions. An example would be the generation of an SNMP trap when Cisco TelePresence traffic loss is greater than 1 percent. When a threshold is crossed, an alarm is generated that can notify the operator of the issue. This event may eventually engage further diagnostics such as Mediatrace to troubleshoot and further isolate the cause of the degradation.
It is recommended to activate Performance Monitor on nodes adjacent to problematic areas of the network (for example the WAN edge) or administrative boundaries (for problem ownership resolution).
Mediatrace will be used to automate this collection of information on the fly.
Mediatrace supports the initiation of the request from an off-path router. Mediatrace can be initiated through the command-line interface (CLI), a network management tool, or a Media Services Interface (MSI)-enabled media endpoint.
With all the relevant statistics available for the flow, from the network nodes along the path, Mediatrace easily and very accurately pinpoints the source or sources of degradation along the network path.
IP SLA VO can also be used to run readiness tests prior to sensitive collaboration meetings to test the network and, in collaboration with Performance Monitor and Mediatrace, to accelerate troubleshooting if issues are found.
IP SLA VO adds to the existing IP SLA probes that are available in Cisco IOS Software such as User Datagram Protocol (UDP) jitter and Domain Name System (DNS). Users of IP SLA will find that IP SLA VO simply extends the familiar IP SLA control and scheduling CLI and MIB framework, allowing for easy integration with existing network management tools.
There are several tools that support the Medianet capabilities depending on customers' needs and environment. For example, when deploying Medianet in conjunction with Cisco TelePresence, Cisco Prime™ Collaboration Manager provides visibility into video traffic by leveraging Mediatrace. Cisco Prime Assurance Manager leverages Medianet Performance Monitoring statistics and provides consistent performance visibility across the network.
There are also tools from other vendors that partner with us through our Enterprise Medianet Systems Management Cisco Developer Network Program. Please check the Medianet datasheet to learn about options.