Juniper Networks monitoring

Learn how to monitor Junos OS devices using the Juniper ActiveGate extension.


  • Juniper Network devices running Junos OS, version 12.1+
  • An Environment ActiveGate that has the ActiveGate plugin module installed and isn't used for synthetic or mainframe monitoring.
    • ActiveGate version 1.175+ is ready to accept and run extensions. If you are running an earlier version of ActiveGate, see Install ActiveGate plugin module for instructions on installing the plugin module.
    • For Environment ActiveGate installation instructions, see Dynatrace ActiveGate.
    • One Environment ActiveGate can typically support 30-50 Juniper devices.


The Junos OS user needs to have VIEW permissions for the following commands:

  • show system memory
  • show system processes brief
  • show interfaces
  • show system statistics

Extension installation

  1. In the Software Intelligence Hub, find and select Juniper Networks.

  2. Select Download to get the extension ZIP file. Don't rename the file.

  3. Unzip the ZIP file to the plugin_deployment directory of your ActiveGate host.

  4. Restart the Dynatrace Remote Plugin Module service.

    • On Linux, restart the service using the following commands with admin rights:
      systemctl restart remotepluginmodule.service
    • On Windows, run these two commands in a Command Prompt launched as Admin:
      sc stop "Dynatrace Remote Plugin Module"  
      sc start "Dynatrace Remote Plugin Module"
  5. In Dynatrace, selectk Settings, Add new technology monitoring, and Add ActiveGate extension.

  6. Select Upload extension and upload the ZIP file.

  7. Enter the endpoint information requested for connecting to the Juniper device:

    Setting Details

    Endpoint name

    Enter a meaningful endpoint name.


    The username for connecting to the Junos OS API.


    The user password.

    SSH Key File

    Address of SSH private key to be used instead of a password.

    Device Address

    The hostname/IP of the device.

    Device Port

    SSH port of the device.

    Device Alias

    Optional alias or the device name.

    Name of the group

    If the device is part of a cluster, enter the name here to group the devices in the GUI.

    Optional list of interfaces to ignore

    Allows for filtering which interfaces should not be monitored.

    • Enter a comma-separated list to ignore more than one interface
    • You can use a regex expression

    Optional list of interfaces to include

    Allows for filtering which interfaces should be monitored.

    Ignore interfaces that do not have an IP address

    Select to ignore interfaces that do not have an IP address.

    Enable debug logging

    Select this only if Dynatrace ONE requests it so they can investigate an issue.

Troubleshoot ActiveGate extensions

See Troubleshoot ActiveGate extensions.


The IP address of all network interfaces and the ports used by the services are automatically captured, as are the following metrics:


  • Availability
  • Wired memory used
  • Active memory used
  • CPU load

Network interface (split by interface)

  • Input bytes
  • Output bytes
  • Input errors
  • Output errors
  • Framing errors
  • Input discards
  • Input drops
  • Output collisions
  • Output drops
  • Flow input policy bytes
  • Flow output policy bytes

Network interface queue (split by interface)

  • Best effort queue - queued packets
  • Best effort queue - transmitted packets
  • Best effort queue - dropped packets
  • Expedited forwarding queue - queued packets
  • Expedited forwarding queue - transmitted packets
  • Expedited forwarding queue - dropped packets
  • Assured forwarding queue - queued packets
  • Assured forwarding queue - transmitted packets
  • Assured forwarding queue - dropped packets
  • Network control queue - queued packets
  • Network control queue - transmitted packets
  • Network control queue - dropped packets

Network protocols

  • Packets sent
  • Packets received
  • Connections requested
  • Connections closed
  • Connections accepted
  • Connections established
  • Datagrams received
  • Datagrams delivered