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Build Details

Component Version
Open Traffic Generator API 1.19.0
snappi 1.19.0
gosnappi 1.19.0
keng-controller 1.19.0-5
ixia-c-traffic-engine 1.8.0.241
keng-app-usage-reporter 0.0.1-52
ixia-c-protocol-engine 1.00.0.424
keng-layer23-hw-server 1.19.0-5
keng-operator 0.3.34
otg-gnmi-server 1.19.0
ixia-c-one 1.19.0-5
UHD400 1.5.1

Release Features(s)

  • Ixia-C: Support added to send flows over DHCPv6 endpoints.

      f1 := config.Flows().Add()​
  f1.SetName(flowName).​
    TxRx().Device().​
    SetTxNames([]string{"p1d1dhcpv6_1"}).​
    SetRxNames([]string{"p2d1ipv6"})​
  f1Ip := f1.Packet().Add().Ipv6()​
  // will be populated automatically with the the dynamically allocated Ip to DHCP client​
  f1Ip.Src().Auto().Dhcp()​
  …​
  f2Ip.Dst().Auto().Dhcp()​

  • Ixia Chassis & Appliances(Novus, AresOne): Support added to retrieve timestamp of the last link state change event of the test port. More Details

    • This can be retrieved by accessing port_metrics[i].last_change.

      Note:

      • As mentioned in the Known Issues, ports being used in the tests must be rebooted once after upgrading to the latest version of keng-layer23-hw-server.
      • Test ports and DUT must be time synced to the same time source if link state change timestamps need to be co-related.

  • Ixia Chassis & Appliances(Novus, AresOne): Support added for RSVP over ISIS Simulated Topology.

      // Create RSVP neighbor on interface connected to DUT.
  // Note that get_states and get_metrics are supported only for the connected RSVP neighbors.
  p2RsvpNeighbor := p2d1.Rsvp().SetName("p2RsvpNbr")
  p2RsvpNeighbor.Ipv4Interfaces().
          Add().SetIpv4Name(p2d1Ipv4.Name()).
          SetNeighborIp(p2d1Ipv4.Gateway())

  // Create RSVP ingress LSPs on the loopback behind the simulated topology.
  fromLoRsvpIngress := fromLoRsvpLsp.P2PIngressIpv4Lsps().Add().SetName("ingressLsp")
  fromLoRsvpIngress.SetRemoteAddress("1.1.1.1").SetTunnelId(100)

  // Create RSVP egress endpoint on the loopback behind the simulated topology.
  toLoRsvpLsp := toLoRsvpPeer.LspIpv4Interfaces().Add().SetIpv4Name("loopback")
  toLoRsvpLspEgress := toLoRsvpLsp.P2PEgressIpv4Lsps().SetName("egressLsp")

  // Note: for TE SPF to work properly on DUT, ensure you have added TrafficEngineering to all ISIS interfaces.
  te = p2d1IsisIntf.TrafficEngineering().Add().SetMetricLevel(10)
  te.PriorityBandwidths().
          SetPb0(125000000).
          ...
          SetPb7(125000000)

Bug Fix(s)

  • Ixia Chassis & Appliances(Novus, AresOne): Issue is fixed where set_config was failing with the error "BgpIPRouteRange is missing" when IPv4 routes with IPv6 next-hops (RFC5549) was configured.

  • Ixia Chassis & Appliances(Novus, AresOne): Issue is fixed where get_states on bgpv4/6_prefixes was returning error "Error occurred while fetching bgp_prefix states:Length cannot be less than zero. (Parameter 'length')" if the prefix contained as_path with multiple segments.

  • Ixia-C, UHD400: Issue is fixed where get_states for isis was returning IPv6 prefixes in upper case causing prefix match for IPv6 prefixes to fail in tests.

  • Ixia-C: Issue is fixed where set_config was failing with error "Error occurred while setting Traffic config (Layer1 only) for user common:Error fetching stats for port port9: unsuccessful Response: Port 7 is not added" when the traffic engine was deployed in multi nic mode (e.g. for lag setups with 8 ports).

  • Ixia-C: Issue is fixed where the traffic engine was crashing on deployment using a single cpu core (--cpuset-cpus="0-1").

  • VM Licensing: Issue is fixed for users using the VM License Server where, after a reboot, license-server VM serving multiple keng-controller(s) did not come up and tests running with those controller(s) started failing.

Known Issues

  • Ixia Chassis & Appliances(Novus, AresOne): If keng-layer23-hw-server version is upgraded/downgraded, the ports which will be used from this container must be rebooted once before running the tests.
  • Ixia Chassis & Appliances(Novus, AresOne): StartProtocols/set_control_state.protocol.all.start can get stuck till the time all DHPCv4/v6 clients receive the leased IPv4/v6 addresses from the DHCPv4/v6 server/relay agent. This may result in getting "context deadline exceeded" error in the test program.
  • UHD400: Packets will not be transmitted if flows[i].rate.pps is less than 50.
  • UHD400: values for fields in flow packet headers can be created with maximum length of 1000 values. If larger set of values are required for a field which are random, please use random instead of values.
  • Ixia-C: Flow Tx is incremented for flow with tx endpoints as LAG, even if no packets are sent on the wire when all active links of the LAG are down.
  • Ixia-C: Supported value for flows[i].metrics.latency.mode is cut_through.
  • Ixia-C: The metric loss in flow metrics is currently not supported.
  • Ixia-C: When flow transmit is started, transmission will be restarted on any existing flows already transmitting packets.