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Test Objectives

The primary objectives of the Data Center Interconnect (JVDE) qualification is to validate the three DCI methods outlined in this JVDE. The design is based on ERB EVPN-VXLAN Fabric for each of the data centers. The goal is to ensure the design is well-documented and will produce a reliable, predictable deployment for the customer. The qualification objectives include validation of blueprint modifications to configure the three DCI methods, incremental configuration pushes/provisioning, Telemetry/Analytics checking, performance/convergence characterization, failure mode analysis, and verification of host traffic. The hardware used for the DCI JVDE are Juniper devices and the software used to provision DCI functionality is using Apstra.

Test Goals

The test goals for this Data Center Interconnect (JVDE) are as follows:

  1. Validate deployment of below DCI methods using Apstra:
    • 3-stage Fabric to 3-stage Fabric data center OTT DCI design.
    • 3-stage to Collapsed Fabric data center VXLAN to VXLAN Seamless Transition design.
    • 3-stage to 5-Stage Fabric data center VXLAN Type 5 to VXALN Type 5 Seamless transition.
  2. Inter-VLAN, Intra-VLAN and Inter-VRF traffic testing between the data centers for all the three data center interconnect methods
  3. Translation VNI used for Type 2 and Type 5 seamless stitching where different VNIs are used in data centers.
  4. Validating MACSEC between data centers with border leaf switches QFX5700 and QFX5120-48YM for Type 2 seamless stitching and QFX5700 and PTX10001-36MR for OTT.
  5. MAC mobility between the data centers for all the three data center interconnect methods.
  6. VLAN disconnect and reconnect from tenant while traffic flows for all the three data center interconnect methods.
  7. Validate traffic convergence times during border leaf switch link failures, node failures, process restarts, reboot and BGP underlay and overlay session flap.
  8. In order to pass validation, the Data Center Interconnectivity must also pass the following scenarios to ensure convergence times were minimum for Border leaf switches:
  • Node Reboot - simulated real-world switch outage.
  • Link failures
  • BGP underlay and overlay session flap.
  • Traffic recovery was validated after all failure scenarios including process restarts.
  • Longevity tests with traffic flow for 8 hours and recreating link and process failure scenarios to ensure traffic recovers.

For more information on the tests carried out, refer to the test report.

Test Non-Goals

The test non-goals includes:

  • Provisioning data centers discussed in this document using Apstra.
  • Configuring of the Interconnect ISP Switches.
  • SFLOW
  • SNMP
  • Management VRF
  • Apply pristine configs to devices