sflow_base_test

SFLOW-1: sFlow Configuration and Sampling

Summary

Verify configuration of sflow and sFlow sample data.

Procedure

• SFLOW-1.1 Configure sFlow on DUT on a non-default VRF

  • Configure DUT and ATE with 2 ports
  • Configure DUT to send sflow samples to ATE port 2
  • Set sample source address, sample size 256Bytes, one sample per 1M packets and DSCP=32

• SFLOW-1.2 Send traffic via OTG and verify sFlow packet on OTG

  • Configure ATE to generate ipv4 and ipv6 traffic and capture sFlow packets

    • Traffic Profile

      Traffic Item	PPS	Packet Size	L3	L4
      sflow3	100000	64	IP	TCP
      mflow3	100000	512	IP	TCP
      lflow3	100000	1500	IP	TCP

  • Verify captured packets are formatted like an sFlow packet

    • Verify sample size is 256B
    • Verify 1 sample sent to collector address per 1M packets generated by ATE
    • Verify sample packet is set with DSCP=32

• SFLOW-1.3 TODO #2346: Additional sflow packet verifications

  • Using the same packets captured in SFLOW-1.2 verify
    • Sampled interface field shows DUT Port 1
    • Ingress and Egress interfaces are correct
    • "Extended-router" container exists and contains are accurate for plain IP and IP-in-IP flows
      • Next hop
      • Next hop source mask
      • Next hop destination mask

OpenConfig Path and RPC Coverage

paths:
  ## Config Parameter coverage
  /sampling/sflow/config/agent-id-ipv4:
  /sampling/sflow/config/agent-id-ipv6:
  /sampling/sflow/config/dscp:
  /sampling/sflow/config/egress-sampling-rate:
  /sampling/sflow/config/enabled:
  /sampling/sflow/config/ingress-sampling-rate:
  /sampling/sflow/config/polling-interval:
  /sampling/sflow/config/sample-size:
  /sampling/sflow/interfaces/interface/config/name:
  /sampling/sflow/interfaces/interface/config/enabled:
  /sampling/sflow/interfaces/interface/config/egress-sampling-rate:
  /sampling/sflow/interfaces/interface/config/ingress-sampling-rate:
  /sampling/sflow/interfaces/interface/config/polling-interval:

  /sampling/sflow/collectors/collector/config/address:
  /sampling/sflow/collectors/collector/config/network-instance:
  /sampling/sflow/collectors/collector/config/port:
  /sampling/sflow/collectors/collector/config/source-address:

  ## Telemetry Parameter coverage
  /sampling/sflow/state/agent-id-ipv4:
  /sampling/sflow/state/agent-id-ipv6:
  /sampling/sflow/state/dscp:
  /sampling/sflow/state/egress-sampling-rate:
  /sampling/sflow/state/enabled:
  /sampling/sflow/state/ingress-sampling-rate:
  /sampling/sflow/state/polling-interval:
  /sampling/sflow/state/sample-size:
  /sampling/sflow/interfaces/interface/state/name:
  /sampling/sflow/interfaces/interface/state/enabled:
  /sampling/sflow/interfaces/interface/state/egress-sampling-rate:
  /sampling/sflow/interfaces/interface/state/ingress-sampling-rate:
  /sampling/sflow/interfaces/interface/state/polling-interval:

  /sampling/sflow/collectors/collector/address:
  /sampling/sflow/collectors/collector/state/address:
  /sampling/sflow/collectors/collector/state/network-instance:
  /sampling/sflow/collectors/collector/state/port:
  /sampling/sflow/collectors/collector/state/source-address:
  /sampling/sflow/collectors/collector/port:

rpcs:
  gnmi:
    gNMI.Set:
    gNMI.Subscribe:

Minimum DUT platform requirement

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