backup_nhg_single_nh_test - openconfig/featureprofiles GitHub Wiki

TE-11.1: Backup NHG: Single NH

Summary

Ensure that backup NextHopGroup entries are honoured in gRIBI for NHGs containing a single NH.

Procedure

  • Connect ATE port-1 to DUT port-1, ATE port-2 to DUT port-2, and ATE port-3 to DUT port-3.

  • Create a non-default VRF-B that contains no interfaces.

  • Connect gRIBI client to DUT with persistence PRESERVE, redundancy SINGLE_PRIMARY, with election ID 1.

  • Install the following gRIBI structure: (if not specifically mentioned, the objects are installed in the DEFAULT VRF)

  • NHG#1 --> NH#1 {next-hop: ATEPort2IP}

  • NHG#2 --> NH#2 {next-hop: ATEPort3IP}

  • 192.0.2.254/32 --> NHG#1

  • NHG#100 --> NH#100 {network-instance:VRF-B}

  • NHG#101 --> [NH#101 {next-hop: 192.0.2.254}, backupNHG: NHG#100]

  • 198.51.100.0/32 {DEFAULT} --> NHG#101

  • 198.51.100.0/32 {VRF-B} --> NHG#2

  • Validate:

    • AFT telemetry shows the installed NHGs and NHs.
    • Traffic is forwarded to ATE port-2 from ATE port-1.

  • For each of the following cases, ensure that traffic switches to being forwarded to ATE port-3:

    • Interface ATE port-2 is disabled.
    • Interface DUT port-2 is disabled.

  • Remove the entry for 192.0.2.254/32.

OpenConfig Path and RPC Coverage

paths:
  /interfaces/interface/config/description:
  /interfaces/interface/config/enabled:
  /interfaces/interface/ethernet/config/port-speed:
  /interfaces/interface/state/oper-status:
  /interfaces/interface/subinterfaces/subinterface/ipv4/addresses/address/config/ip:
  /interfaces/interface/subinterfaces/subinterface/ipv4/addresses/address/config/prefix-length:
  /network-instances/network-instance/config/description:
  /network-instances/network-instance/config/type:
  /network-instances/network-instance/interfaces/interface/config/id:
  /network-instances/network-instance/interfaces/interface/config/interface:
  /network-instances/network-instance/interfaces/interface/config/subinterface:
  /network-instances/network-instance/policy-forwarding/interfaces/interface/config/apply-vrf-selection-policy:
  /network-instances/network-instance/policy-forwarding/policies/policy/config/type:
  /network-instances/network-instance/policy-forwarding/policies/policy/rules/rule/action/config/network-instance:
  /network-instances/network-instance/policy-forwarding/policies/policy/rules/rule/ipv4/config/protocol:
rpcs:
  gnmi:
    gNMI.Get:
    gNMI.Set:
    gNMI.Subscribe:
  gribi:
    gRIBI.Flush:
    gRIBI.Get:
    gRIBI.Modify:

Minimum DUT platform requirement

vRX if the vendor implementation supports FIB-ACK simulation, otherwise FFF.

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