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Github Action edited this page Jun 25, 2024 · 7 revisions

TE-3.1: Base Hierarchical Route Installation

Summary

Validate IPv4 AFT support in gRIBI with recursion.

Procedure

Topology:

  • Connect ATE port-1 to DUT port-1 and ATE port-2 to DUT port-2.
  • Create a non-default VRF (VRF-1)
  • Configure PBF policy in DEFAULT to match src address and redirect traffic to VRF-1
  • Apply PBF policy on ingress interface DUT port-1
  • Establish gRIBI client connection with DUT using default parameters and persistence mode PRESERVE, make it become leader and flush all entries after each case.

Validate hierarchical resolution across VRFs:

  1. Using gRIBI Modify RPC install the following IPv4Entry set per the following order, and ensure FIB ACK is received for each of the AFTOperation:

    1. Add 203.0.113.1/32 (default VRF) to NextHopGroup (default VRF) containing one NextHop (default VRF) specified to be the address of ATE port-2.
    2. Add 198.51.100.1/32 (VRF-1) to NextHopGroup (default VRF) containing one NextHop (default VRF) specified to be 203.0.113.1/32 in the default VRF.

  2. Forward packets between ATE port-1 and ATE port-2 (destined to 198.51.100.1/32) and determine that packets are forwarded successfully.

  3. Validate that both routes are shown as installed via AFT telemetry.

  4. Ensure that removing the IPv4Entry 203.0.113.1/32 with a DELETE operation results in traffic loss, and removal from AFT.

Validate hierarchical resolution using egress interface and MAC:

  1. Using gRIBI Modify RPC install the following IPv4Entry set per the following order, and ensure FIB ACK is received for each of the AFTOperation:

    1. Add 203.0.113.1/32 (default VRF) to NextHopGroup (default VRF) containing one NextHop (default VRF) that specifies DUT port-2 as the egress interface and 00:1A:11:00:0A:BC as the destination MAC address.
    2. Add 198.51.100.1/32 (VRF-1) to NextHopGroup (default VRF) containing one NextHop (default VRF) specified to be 203.0.113.1/32 in the default VRF.

  2. Forward packets between ATE port-1 and ATE port-2 (destined to 198.51.100.1/32) and ensure that ATE port-2 receives packet with 00:1A:11:00:00:01 as the destination MAC address.

  3. Repeat the above tests with one additional scenario with the following changes, and it should not change the expected test result.

    • Add an empty decap VRF, DECAP_TE_VRF.
    • Add 4 empty encap VRFs, ENCAP_TE_VRF_A, ENCAP_TE_VRF_B, ENCAP_TE_VRF_C, and ENCAP_TE_VRF_D.
    • Add 2 empty transit VRFs, TE_VRF_111 and TE_VRF_222.
    • Program route 198.51.100.1/32 through gribi in TE_VRF_111 instead of VRF-1.
    • Replace the existing VRF selection policy with vrf_selection_policy_w as in https://github.com/openconfig/featureprofiles/pull/2217.
    • Send IP-In-IP traffic with source IP to ipv4_outer_src_111 (198.51.100.111) and DSCP to dscp_encap_a_1(10).

Config Parameter coverage

No configuration relevant.

Telemetry Parameter coverage

For prefix:

  • /network-instances/network-instance/afts/

Parameters:

  • ipv4-unicast/ipv4-entry/state
  • ipv4-unicast/ipv4-entry/state/next-hop-group
  • ipv4-unicast/ipv4-entry/state/origin-protocol
  • ipv4-unicast/ipv4-entry/state/prefix
  • next-hop-groups/next-hop-group/id
  • next-hop-groups/next-hop-group/next-hops/next-hop/index
  • next-hop-groups/next-hop-group/next-hops/next-hop/state
  • next-hop-groups/next-hop-group/next-hops/next-hop/state/index
  • next-hop-groups/next-hop-group/state/id
  • next-hop-groups/next-hop-group/state/programmed-id
  • next-hops/next-hop/index
  • next-hops/next-hop/interface-ref/state/interface
  • next-hops/next-hop/interface-ref/state/subinterface
  • next-hops/next-hop/state/index
  • next-hops/next-hop/state/state/programmed-id
  • next-hops/next-hop/state/ip-address
  • next-hops/next-hop/state/mac-address

Protocol/RPC Parameter coverage

  • 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
        • mac_address
        • interface_ref
    • ModifyResponse:
    • AFTResult:
      • id
      • status

Minimum DUT platform requirement

vRX if the vendor implementation supports FIB-ACK simulation, otherwise FFF.

OpenConfig Path and RPC Coverage

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