Filtering links on the network map

Expand all | Collapse all

By default, the network map displays all links for which communication was detected during the defined time period. To limit the number of links displayed on the network map, you can use the following functions:

• Filtering based on event severity

  To filter links on the network map based on event severity levels:

  1. In the toolbar located above the network map, open the Link severity levels drop-down list.

     You will see a list containing the names of the severity levels of events (Informational, Warning, Critical events), as well as the No events item that lets you filter connections for which no events have been registered.

  2. In the drop-down list, select the check boxes for those severity levels by which you want to filter links.
  3. Click OK.

  The network map displays only those links associated with events that have the selected severity levels.

• Filtering by communication protocols

  To filter links on the network map based on the protocols of communications:

  1. In the toolbar located above the network map, open the Protocols drop-down list.

     You will see a window containing the table of supported protocols displayed as a protocol stack tree. You can manage how tree elements are displayed by using the + and - buttons next to the names of protocols that contain protocols of subsequent layers.

     The table columns provide the following information:

     • Protocol – name of the protocol within the protocol stack tree.
     • EtherType – number of the next-level protocol within the Ethernet protocol (if the protocol has a defined number). It is displayed in decimal format.
     • IP number – number of the next-level protocol within the IP protocol (if the protocol has a defined number). It is indicated only for protocols within the IP protocol structure. It is displayed in decimal format.
  2. If necessary, use the search field above the table to find relevant protocols.
  3. In the list of protocols, select the check boxes opposite the protocols by which you want to filter events.

     If you select or clear the check box for a protocol that contains nested protocols, the check boxes for the nested protocols are also automatically selected or cleared.

  4. Click OK.

  The network map displays only those links in which the selected protocols were used.

• Filtering based on the OSI model layers

  You can filter links based on the levels of communications corresponding to the layers of the OSI (Open Systems Interconnection) model for the network protocol stack.

  To filter links on the network map based on the layers of the OSI network model:

  1. In the toolbar located above the network map, open the OSI model layers drop-down list.

     You will see a list containing the names of OSI model layers:

     • Data Link. This layer includes the communication links in which MAC addresses were used to communicate with devices.
     • Network. This layer includes links in which IP addresses were used to communicate with devices.
  2. In the drop-down list, select the check boxes for those OSI model layers whose links need to be displayed on the network map.
  3. Click OK.

  The network map displays only those links that are associated with the selected OSI model layer.

Page top