Traffic policing test (non-color-aware)

This test verifies that a non-colored Ethernet service QoS profile has the expected behavior. It is assumed that the service has a QoS profile defined with the CIR and EIR parameters as well as maximum frame loss ratio, delay, and jitter values for conforming frames. The test being non-color-aware means that there is only one stream and one QoS class. For the generated stream the following parameters need to be specified: frame size, source and destination UDP port, DSCP value, and VLAN priority (p-bits).

Test procedure

  • The sender Test Agent generates frames at a rate of CIR + 1.25 × EIR. (However, if EIR is less than 20% of CIR, the frames are instead generated at a rate of 1.25 × CIR + EIR.)
  • The receiver Test Agent measures received rate, loss, delay, and jitter on the stream. The test fails if the measured rate is higher than CIR + 1.05 × EIR or less than CIR × (1 – max_loss).

Reference

The test conforms to ITU-T Y.1564 section 8.1.2, test C.2.

Parameters

General

  • Sender: The sender interface.
  • Receiver: The receiver interface.
  • Test duration (s): Test duration in seconds. Min: 5 s. Max: 60 s. Default: 20 s.
  • Wait for ready: Time to wait before starting the test. The purpose of inserting a wait is to allow all Test Agents time to come online and acquire good time sync. Min: 1 min. Max: 24 hours. Default: "Don't wait", i.e. zero wait time.

QoS profile

  • CIR (Mbit/s): Committed information rate. Min: 0.1 Mbit/s. Max: 10000 Mbit/s. No default.
  • EIR (Mbit/s): Excess information rate. Min: 0.1 Mbit/s. Max: 10000 Mbit/s. No default.
  • Max frame loss (%): Maximum frame loss ratio for conforming packets. Min: 0%. Max: 100%. No default.

Traffic profile

  • Frame size (bytes): Ethernet frame size in bytes. Min: 64 bytes. Max: 1518 bytes. Default: 512 bytes.
  • Source UDP port: The source UDP port to use. Range: 1 ... 65535. Default: 5000.
  • Destination UDP port: The destination UDP port to use. Range: 1 ... 65535. Default: 5000.
  • DSCP: The Diffserv code point. Range: 0 ... 63. Default: 0.
  • VLAN priority (PCP): Priority bits in VLAN header. Min: 0. Max: 7. Default: 0.

Result metrics

  • Rate, loss, delay, jitter
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