Nokia Service Router Linux

Nokia Service Router Linux (SR-Linux) is an open source network operating system running on Nokia's merchant silicon based data center switches.

The following commands configure SR-Linux to sample packets at 1-in-10000, poll counters every 20 seconds and stream standard sFlow telemetry to an analyzer (192.168.10.20) using the default sFlow port 6343:

system {
    sflow {
        admin-state enable
        sample-rate 10000
        collector 1 {
            collector-address 192.168.10.20
            network-instance default
            source-address 192.168.1.1
            port 6343
        }
    }
}

For each interface:

interface ethernet-1/1 {
    admin-state enable
    sflow {
        admin-state enable
    }
}

Enable sFlow on all switches and ports in the data center fabric for comprehensive visibility.

An instance of the sFlow-RT real-time analytics software converts the raw sFlow telemetry into actionable measurements to drive operational dashboards and automation (e.g. DDoS mitigation, traffic engineering, etc.).

docker run --name sflow-rt -p 8008:8008 -p 6343:6343/udp -d sflow/prometheus

A simple way to get started is to run the Docker sflow/prometheus image on the sFlow analyzer host (192.168.10.20 in the example config) to run sFlow-RT with useful applications to explore the telemetry. Access the web interface at http://192.168.10.20:8008.