Medianet


Cisco's Medianet is an end-to-end architecture that is capable analyzing voice, video and data traffic and report on loss, latency and jitter thereby helping you optimize rich media applications.It enables you to monitor the flow of packets in your network and become aware of any issues that might impact the flow before it starts to significantly impact the performance of the application in question. Performance monitoring is especially important for video traffic because high quality interactive video traffic is highly sensitive to network issues. Even minor issues that may not affect other applications can have serious effects on video quality.

 

The Medianet performance monitoring capability(Mediatrace) gives network administrators the ability to view video performance on a specific router to isolate poor video performance. NetFlow Analyzer uses Cisco Medianet to generate reports on the voice and video performance helping network administrators to isolate specific hop of network problem and support quality of service classification or policies.


Mediatrace Configuration:


Mediatrace feature in NetflowAnalyzer uses Web Service Management Agent(WSMA) to import data from the router. To enable wsma in your router please do the following steps :

Enabling http

Router#enable 
Router#config terminal
Router(config)#ip http server 
Router(config)#ip http authentication local 
Router(config)#end

Troubleshoot

Router#show ip http server status

Enabling Service Listener

The service listener is a type of WSMA profile that listens for incoming connections and accepts devices from allowed addresses or accepted user IDs.

Router#enable 
Router#config terminal
Router(config)#wsma profile listener mylistener
Router(config-wsma-listen)#encap soap11
Router(config-wsma-listen)#transport http path /wsma
Router(config-wsma-listen)#transport http 
Router(config-wsma-listen)#wsse
Router(config-wsma-listen)#exit
Router(config)#end

Troubleshoot

Router#show wsma profile connections

Enable WSMA agents that provide access to exec

Router#enable 
Router#config terminal
Router (config)#wsma agent exec profile mylistener
Router(config)#end

TroubleShoot WSMA "%format unable to get tty"

If The Max connection for the router is reached it will throw %format unable to get tty For that you have to check the total users connected by "show users" Clear an unwanted line by using "clear line lineno"

cisco2081_routerss#show users 
cisco2081_routerss#show line 
cisco2081_routerss#clear line lineno
[confirm]y [OK]

For more information refer this link: http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_cfg_wsma.html#wp1105726


Enable Mediatrace


Before implementing a Mediatrace session, you have to enable Mediatrace on each network interface that you want to collect flow information from. The steps to enable meidatrace are given below:


SUMMARY STEPS

1. enable 

2. configure terminal 

3. mediatrace initiator {source-ip ip-address | source-interface interface-name} [force] 

[max-sessions number] 

4. mediatrace responder [max-sessions number] 

5. end

Mediatrace Settings

1. Configure Medianet Initiator


The Medianet Initiator must be enabled on the network interface that you will use to configure, initiate, and control the Mediatrace sessions. You can configure a Initiator using the NetFlow Analyzer web interface.

  1. Navigate to Medianet->Settings->Add Session >Click Add Initiator
  2. In the new pop-up window that appears

    1. Select the IP address of the router, you would like to configure as the Initiator, from the dropdown list.
    2. Specify the username and password of the selected router.
    3. Click update to save the changes
  3. Now an initiator has been configured.

2. Configure Medianet Monitoring profile


Cisco Mediatrace provides pre-packaged system-data monitoring profiles, video monitoring profile and system data profile, that contain all of the parameter settings you need to start a system-data monitoring session or video-monitoring session. The Profile configuration in NetFlow Analyzer allows you to configure a Mediatrace a monitoring profile for both system-data and video-monitoring using the web interface. In order to configure a Mediatrace Profile do the following:

  1. Navigate to Medianet->Settings->Add Profile
  2. Specify the profile name
  3. Select the type of profile. It can either be video-monitoring profile(perf mon) or system-data profiles(system). The metrics will differ according to the type of profile you select.
    1. If you have selected video monitoring profile,
      1. Specify sampling interval, the interval, in seconds, between samples taken of video-monitoring metrics.
      2. Select the metrics being monitored are for TCP or RTP, from the drop-down list
    2. If you have selected the system-data profile,
      1. The metrics being monitored are for interfaces, the CPU, or the memory.
  4. Click "add profile" to save the profile and add the to the session

3. Configure Medianet Parameters


The Parameters profile defines the characteristics of a Cisco Mediatrace session and help it to operate smoothly.

  1. Navigate to Medianet->Settings->Add Parameters
  2. Select the IP address of the router you have configured as the Initiator
  3. Specify the parameter name you want to configure
  4. Specify response time, the amount of time, in seconds, the initiator will wait for a response from the responder. default value: 100 seconds
  5. Specify Frequency, the interval between samples taken of session-params metrics and the amount of time the initiator will remain active without any activity from the responder. The values are mentioned in second. Default value: 30 seconds
  6. Specify Inactivity Timeout, the amount of time, in seconds, the initiator will wait for the responder to react to its additional route changes. Default value: 90 seconds
  7. Click on "Add Param" to save the changes and add the parameters to the session.

4. Configure Flow Specifier


A flow-specifier profile defines the source IP address, destination IP address, source port, destination port, and protocol that identifies a flow. A Mediatrace session configuration requires a flow specifier to identify the flows. The session configuration in NetFlow Analyzer allows you to configure a flow profile using the web interface. In order to configure a flow specifier do the following:

  1. Navigate to Medianet->Settings->Add Flows
  2. Select the IP address of the router you have configured as the Initiator
  3. Enter the name of the flow specifier you intend to create
  4. Select the flow
  5. Click "Add Flow" to save the changes and add the flows to the session.

5. Configure Medianet Session

 

The Mediatrace session allows you to link the profiles created, to a session. Only one of each type of profile can be associated with a Cisco Mediatrace session. The session configuration in NetFlow Analyzer allows you to link the profiles and sessions using the web interface. In order to configure a session do the following:

  1. Navigate to Medianet->Settings->Add Sessions
  2. Specify the session name you want to create
  3. Select the IP address of the router you have configured, as the Initiator
  4. Select the parameter, you have configured, from the drop down list
  5. Select the path, you have configured, from the drop down list
  6. Select the Flow, you have configured, from the dropdown list
  7. Click "save session" to save the session created

6. Starting a Mediatrace Session

 

The start session configuration allows you to schedule a mediatrace session to begin when you want to start collecting the data. The session performs according to the profiles it is associated with. If the Cisco Mediatrace session is designed to collect performance monitoring metrics, it goes out to enable the Performance Monitor when the session begins. NetFlow Analyzer allows you to start a session using the using the web interface. In order to start a session do the following:

  1. Navigate to Medianet->Settings->Add Sessions->start session
  2. Select the router IP you have configured as the initiator
  3. Select the session name
  4. Mention the "start time" of the session. i.e the time when you want the session to begin
  5. Mention "Life" of the session. i.e the time duration you want the created session to be active
  6. Click "start session" to start the data collection

 

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