Ensure that the gRIBI server implements a base set of MPLS functionality without traffic validation.

• Configure ATE port-1 connected to DUT port-1, and ATE port-2 connected to DUT port-2.
• ATE port-2 is configured to have an assigned address of 192.0.2.2, and the interface to the DUT is enabled.
• For label stack depths beginning at baseLabel, with numLabels addition labels:
  • Program a LabelEntry matching outer label 100 pointing to a NHG containing a single NH.
  • Program a NextHopEntry which points to 192.0.2.2 pushing [baseLabel, ..., baseLabel+numLabels] onto the MPLS label stack.
• Validate that gRIBI transactions are successfully processed by the server.

• Configure DUT with a destination interface connected to an ATE. The ATE is configured to have an assigned address of 192.0.2.2, and the interface to the DUT is enabled.
• For label stack depths from N=1...numLabels program:
  • an IPv4 entry for 10.0.0.0/24 with a next-hop of 192.0.2.2 pushing N additional labels onto the packet.
• Validate that gRIBI transactions are successfully processed by the server.

• Configure DUT with a destination interface connected to an ATE. The ATE is configured to have assigned address 192.0.2.2.
• Program DUT with a label forwarding entry matching label 100 and specifying to pop the top label.
• Validate that gRIBI transactions are successfully processed by the server.

• Configure DUT with destination interface connected to an ATE. The ATE is configured to have assigned address 192.0.2.2.
• Program DUT with a label forwarding entry matching label 100 and specifying to pop:
  • Label 100
  • Label stack [100, 42]
  • Label stack [100, 42, 43, 44, 45]

• Configure DUT with destination interface connected to an ATE. The ATE is configured to have assigned address 192.0.2.2.
• Program DUT with a label forwarding entry matching label 100 and label 200, pointing to a next-hop that is programmed to pop the top label, and:
  • push label 100 - resulting in a swap for incoming label 100, and a push of 100 for incoming label 200.
  • push stack [100, 200, 300, 400]
  • push stack [100, 200, 300, 400, 500, 600]

• gRIBI:
  • Modify()
  • ModifyRequest
    • AFTOperation:
    • id
    • network_instance
    • op: ADD
    • ipv4: * prefix
    • mpls: * next_hop_group
    • next_hop_group * id * next_hop
    • next_hop * id * ip_address * pushed_label_stack * pop_top_label * popped_label_stack
  • ModifyResponse:
  • AFTResult:
    • id
    • status