Validate IPv4 support in gRIBI using an Aggregate Port as a static route Next Hop.

• Connect ATE port-1 to DUT port-1, ATE port-2 to DUT port-2, and ATE port-3 to DUT port-3.

• Configure ATE and DUT ports 2-3 to be part of a Static LAG.

• Establish gRIBI client connection with DUT, negotiating RIB_AND_FIB_ACK as the requested ack_type and persistence mode PRESERVE. make it become leader. Flush all entries after each case.

• Using gRIBI Modify RPC install the following IPv4Entry sets, and validate the specified behaviours:

  • Single IPv4Entry -> NHG -> NH with MAC Override.

    • Configure a static ARP entry for the LAG interface pointing the synthetic IP 192.0.2.22 to the neighbor's MAC address 02:00:00:00:00:01.
    • Configure a static route matching 192.0.2.22/32 to the interface ref of the LAG.
    • The gRIBI NH entry uses 192.0.2.22 to select the LAG as the egress interface.

  • Install 198.51.100.0/24 to NextHopGroup containing one NextHop which is a static route to the ATE LAG port containing ports 2-3, and override the destination MAC to a specified value.

  • Forward packets between ATE port-1 and ATE LAG (destined to 198.51.100.0/24 i.e. packets with destination IP starting 198.51.100.1 up to 198.51.100.255) and determine that packets are forwarded successfully.

  • Disable ATE port-2 and forward packets between ATE port-1 and ATE LAG (destined to 198.51.100.0/24 ) and determine that packets are forwarded successfully.

  • Disable ATE port-2 and port-3 and forward packets between ATE port-1 and ATE LAG (destined to 198.51.100.0/24 ) and determine that packets are lost 100%.

  • Re-enable both ATE port-2 and port-3 and forward packets between ATE port-1 and ATE LAG (destined to 198.51.100.0/24 ) and determine that packets are forwarded successfully again.

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• gRIBI
  • Modify()
    • ModifyRequest:
      • AFTOperation:
        • id
        • network_instance
        • op
        • Ipv4
          • Ipv4EntryKey: prefix
          • Ipv4Entry: next_hop_group
        • next_hop_group
          • NextHopGroupKey: id
          • NextHopGroup: next_hop
        • next_hop
          • NextHopKey: id
          • NextHop:
            • ip_address
    • ModifyResponse:
      • AFTResult:
        • id
        • status