gribi_scaling

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: