gribi_scaling - openconfig/featureprofiles GitHub Wiki

TE-14.1: gRIBI Scaling

Summary

Validate gRIBI scaling requirements.

Procedure

  • Connect ATE port-1 to DUT port-1, ATE port-2 to DUT port-2.
  • Create 64 L3 sub-interfaces under DUT port-2 and corresponding 64 L3 sub-interfaces on ATE port-2
  • On DUT port-1 and ATE port-1 create a single L3 interface
  • On DUT, create a policy-based forwarding rule to redirect all traffic received from DUT port-1 into VRF-1 (based on src. IP match 111.111.111.111)
  • On DUT, create a policy-based forwarding rule to redirect all traffic received from DUT port-1 into VRF-2 (based on src. IP match 222.222.222.222)
  • Establish gRIBI client connection with DUT negotiating FIBACK as the requested ack_type and make it become leader.
  • TODO: Using gRIBI Modify RPC install the following IPv4Entry sets, and validate the specified behaviours:
    • Default VRF
      • A) Install 400 NextHops, egressing out different interfaces.
      • B) Install 200 NextHopGroups. Each points at 8 NextHops from the first 200 entries of A) with equal weight.
      • C) Install 200 IPv4 Entries, each pointing at a unique NHG (1:1) from B.
      • D.1) Install 100 NextHops. Each will redirect to an IP from C).
      • D.2) Install 100 NextHops. Each will redirect to an IP from C).
      • E) Install 100 NextHopGroups. Each will contain 1 NextHops from D.1 with weights 1 and 1 NextHop from D.1 with weight 31. The backup next_hop_group will be to redirect to VRF3.
      • F) Install 100 NextHopGroups. Each will contain 2 NextHops from D.1 with weights 1 abd 1 NextHop from D.2 with weight 31. The backup next_hop_group will be to decap and redirect to DEFAULT vrf.
      • G) Install 700 NextHops. Each will decaps + reencap to an IP in VRF2.
      • H) Install 700 NextHopGroups. Each will point to a NextHop from G) and have a backup next_hop_group to decap and redirect to DEFAULT vrf.
    • VRF1
      • Install 9000 IPv4Entries. Each points to a NextHopGroup from E).
    • VRF2
      • Install 9000 IPv4Entries (Same IPAddress as VRF1). Each points to a NextHopGroup from F).
    • VRF3
      • Install 9000 IPv4Entries (Same IPAddress as VRF1). Each points to a NextHopGroup from H).
  • Validate that each entry above are installed as FIB_PROGRAMMED.
  • TODO: Add flows destinating to IPBlocks and ensure ATEPort2 receives it with no loss and proper weights

OpenConfig Path and RPC Coverage

rpcs:
  gnmi:
    gNMI.Get:
    gNMI.Set:
    gNMI.Subscribe:
  gribi:
    gRIBI.Get:
    gRIBI.Modify:
    gRIBI.Flush:
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