Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 

Configuring Routers to Send JTI Telemetry Data and RPM Statistics to the Data Collectors

 

Junos Telemetry Interface (JTI) sensors generate data from the PFE (LSP traffic data, logical and physical interface traffic data), and will only send probes through the data plane. So, in addition to connecting the routing engine to the management network, a data port must be connected to the collector on one of your devices. The rest of the devices in the network can use that interface to reach the collector.

Note

You must use Junos OS Release 15.1F6 or later for NorthStar analytics.

To configure the routers, use the following procedure:

  1. Configure the devices for telemetry data. On each device, the following configuration is required. The device needs to be set to enhanced-ip mode, which might require a full reboot. Note

    If you are configuring for NorthStar integration with HealthBot, use default remote-port 4000 and set the remote-address to the HealthBot server IP address.

    In this configuration, the remote address is the IP address of the collector (reachable though a data port). The local address should be the loopback, or router-id, whichever is configured on the device profile to identify the device.

  2. NorthStar supports bandwidth sizing and container LSPs for SR-TE LSPs. Junos OS release 19.2R1 or later is required for this functionality. There is additional configuration required on the router to enable collection of segment routing data. For example:
  3. Real-time performance monitoring (RPM) enables you to monitor network performance in real time and to assess and analyze network efficiency. To achieve this, RPM exchanges a set of probes with other IP hosts in the network for monitoring and network tracking purposes.

    Configure RPM probes to measure the interface delays. The following example shows the configuration of probes out of interface ge-0/1/1.0 to the remote address 10.101.105.2. This remote address should be the IP address of the node at the other end of the link.

    Note

    The test name must match the interface being measured (test ge-0/1/1.0, in this example).

  4. Configure the syslog host using the following commands:Note

    IMPORTANT: To prevent the population of duplicate delay data to the PCS, do not perform this step if you are configuring for integration with HealthBot.

  5. RPM probes do not yet generate telemetry data, but you can use the rpm-log.slax script to push the results. The script is located in /opt/northstar/data/logstash/utils/junoscripts. Install the script to /var/db/scripts/event on the router. Enable the script by adding it to the event/scripts configuration:Note

    IMPORTANT: To prevent the population of duplicate delay data to the PCS, do not perform this step if you are configuring for integration with HealthBot.

    The text of the rpm-log.slax script follows. Comments are enclosed in /* */.