backup_nhg_multiple_nh_pbf_test - openconfig/featureprofiles GitHub Wiki

TE-11.21: Backup NHG: Multiple NH with PBF

Summary

Ensure that backup NHGs are honoured with NextHopGroup entries containing >1 NH.

Procedure

  • Connect ATE port-1 to DUT port-1, ATE port-2 to DUT port-2, ATE port-3 to DUT port-3, and ATE port-4 to DUT port-4.
  • Create a L3 routing instance (VRF-A & VRF-B).
  • Connect a gRIBI client to the DUT, make it become leader and inject the following:
    • An IPv4Entry in VRF-A, pointing to a NextHopGroup (in DEFAULT VRF) containing:
      • Two primary next-hops:
        • IP of ATE port-2
        • IP of ATE port-3
      • A backup NHG containing a single next-hop pointing to VRF-B.
    • The same IPv4Entry but in VRF-B, pointing to a NextHopGroup (in DEFAULT VRF) containing a primary next-hop to the IP of ATE port-4.
  • Add an empty decap VRF, DECAP_TE_VRF.
  • Add 4 empty encap VRFs, ENCAP_TE_VRF_A, ENCAP_TE_VRF_B, ENCAP_TE_VRF_C and ENCAP_TE_VRF_D.
  • Replace the existing VRF selection policy with vrf_selection_policy_w as in https://github.com/openconfig/featureprofiles/pull/2217
  • Ensure that traffic forwarded to the destination is received at ATE port-2 and port-3. Validate that AFT telemetry covers this case.
  • Disable ATE port-2. Ensure that traffic for the destination is received at ATE port-3.
  • Disable ATE port-3. Ensure that traffic for the destination is received at ATE port-4.

OpenConfig Path and RPC Coverage

paths:
  /interfaces/interface/config/description:
  /interfaces/interface/config/enabled:
  /interfaces/interface/config/name:
  /interfaces/interface/config/type:
  /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/name:
  /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/interfaces/interface/config/interface-id:
  /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

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