Application, DSCP, and Top Sites Mapping

     

    These settings allow you to map your custom applications, DSCP or sites w.r.t its IP addresses. This setting will help you to show the particular traffic consumed by the mapped application or DSCP or site.

    You can only view the created Mapping in the NetFlow Analyzer Collector UI. All addition and modification of Application, DSCP and Top sites mapping can be done only from the Central UI. 

    Setting Description
    Application Mapping Add a application in NetFlow Analyzer to view its traffic consumption
    DSCP Mapping Add a DSCP code point in NetFlow Analyzer to view defined QoS traffic
    Top Sites Add a site in NetFlow Analyzer to view its traffic consumption

     

    Application Mapping

    The Application Mapping option lets you configure the applications identified by NetFlow Analyzer. You can add new applications, modify existing ones, or delete them. Please see the   Additional Notes on Application Mapping section to understand this feature more clearly. Also it is possible to associate an IP address with an application.

     

    Application Mapping

     

    Adding an Application

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-create-a-new-mapping-for-custom-application.html#createappgroup

    Important

    Ensure that the combination of port number and protocol is unique. If not, the older application mapping will be deleted.

     

    Deleting an Application

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-create-a-new-mapping-for-custom-application.html#deleteappgroup

     

    Modifying an Application

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-create-a-new-mapping-for-custom-application.html#editappgroup

     

    Additional Notes on Application Mapping

    Applications are categorized based on the source address, destination address, source port, destination port and protocol values in the flow record. These values are matched with the list of applications in the Application Mapping.

    The check is done first with the smaller of the 2 ports (source port / destination port), and if no match is found the bigger of the 2 ports is mapped

    Application mappings created with specific IP address / IP Range / IP Network is given higher priority over applications mappings with no IP address. For example assume you have 2 application mappings as below:

    Port Protocol IP Address / IP Range Application
    80 TCP 10.10.1.0( 255.255.255.0) APP1
    80 TCP Any APP2

    If a flow is received with source address 10.10.10.10 and Port as TCP-80 then it is classified as APP1. Only TCP-80 flows from non-10.10.10.0 network will be classified as APP2.

    Application mappings created with a single port is given higher priority over applications mappings with port range. For example, assume you have application mappings as below:

    Port Protocol IP Address / IP Range Application
    80 TCP any APP1
    70 - to - 90 TCP any APP2

    If a flow is received with Port as TCP-80 then it is classified as APP1.

    Applications are categorized based on the source address, destination address, source port, destination port and protocol values in the flow record.

    The smallest of the 2 ports (source port / destination port) and protocol is matched with the port-protocol in the application mapping list

    If no match is found, the biggest of the 2 ports (source port / destination port) and protocol is matched with the port-protocol in the application mapping list.

    If no match is found, the smaller of the 2 ports (source port / destination port) and protocol is matched with the port range-protocol in the application mapping list.

    If no match is found, the biggest of the 2 ports (source port / destination port) and protocol is matched with the port range-protocol in the application mapping list.

    If no match is found, the application is categorized as protocol_App (as in TCP_App or UDP_App)

    In case the protocol is not available in the application mapping list, the application is categorized as Unknown_App

    The sequence in which the mappings are checked is as follows:

    1. Application mapping with specific IP address / IP Range / IP Network is matched.

    2. Application mapping with no IP address and single port number / port range.

      
     

    DSCP Mapping

    The DiffServ model for DSCP Mapping was developed to differentiate IP traffic so that the traffic's relative priority could be determined on a per-hop basis. Using DSCP Mapping you can name the DiffServ code points and monitor their traffic in troubleshooting reports under the DSCP tab. Note that the DSCP reports can be viewed on the Troubleshooting page by clicking on the DSCP tab.

    DSCP Mapping

     

    Adding a new DSCP Mapping  

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-add-a-new-mapping-for-dscp.html#newdscpmapgroup

     

    Modifying a DSCP Mapping

    Note
    It is not possible to edit a DSCP mapping, however you can delete the old mapping and add it as new DSCP mapping.

     

    Deleting a DSCP Mapping

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-add-a-new-mapping-for-dscp.html#deldscpmapgroup

     

    Top Sites

    The Top Sites report displays the applications contributing to the maximum network traffic.The top sites option maps application to the resolved DNS names. Expanding the applications displays name of the website (if the DNS is resolved) and names of top 10 machines in your network (if the DNS is resolved) connecting to that website. It will also give the contribution of traffic in terms of upload & download volume (and % of total traffic) from each IP address to the particular site through that application.

    Using the Mappings option you can now Add, Modify or Delete the pre-defined IP addresses and its corresponding application/site.

    Top Sites

     

    Adding a Top Site

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-add-delete-a-site-map.html#addsitemap

     

    Deleting a Top Site

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-add-delete-a-site-map.html#deletesitemap

     

    Modifying a Top Site

    Refer the page below:

    https://www.manageengine.com/products/netflow/help/how-to-add-delete-a-site-map.html#edittopsite