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 criteria)
• Establish gRIBI client connection with DUT negotiating FIBACK as the requested ack_type and make it become leader.
• Using gRIBI Modify RPC install the following IPv4Entry sets, and validate the specified behaviours:
  • IPv4Entries -> NHG -> Multiple NH.
    • Inject IPv4Entries(IPBlockDefaultVRF: 198.18.196.1/22) in default VRF
    • Install 64 L3 sub-interfaces IP to NextHopGroup containing one NextHop specified to ATE port-2.
    • Validate that the entries are installed as FIB_PROGRAMMED
  • IPv4Entries -> Multiple NHG -> Multiple NH.
    • Inject IPv4Entries(IPBlock1: "198.18.0.1/18") in VRF1.
    • Install 1000 IPs from IPBlockDefaultVRF to 10 NextHopGroups containing 100 NextHops each
    • Validate that the entries are installed as FIB_PROGRAMMED
  • IPv4Entries -> Multiple NHG -> Multiple NH.
    • Inject IPv4Entries(IPBlock2: "198.18.64.1/18") in VRF2.
    • Install repeat 17.5K NH from 1K /32 from IPBlockDefaultVRF to 35 NextHopGroups containing 45 NextHops each
    • Validate that the entries are installed as FIB_PROGRAMMED
  • IPv4Entries -> Multiple NHG -> Multiple NH.
    • Inject IPv4Entries(IPBlock3: "198.18.128.1/18") in VRF3.
    • Install IPiniP decap-then-encap to 500 first /32 from to 500 NextHopGroups containing 1 NextHop each
    • Validate that the entries are installed as FIB_PROGRAMMED
• TODO: Add flows destinating to IPBlocks and ensure ATEPort2 receives it with no loss

OpenConfig Path and RPC Coverage

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