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Github Action edited this page May 6, 2024 · 2 revisions

RT-7.8: BGP Policy Match Standard Community and Add Community Import/Export Policy

Summary

Configure bgp policy to add communities to routes by matching on the following criteria.

  • RT-7.8.1 Validate test environment
  • RT-7.8.2 Validate policy to set standard community for various policies using OC release 3.x

Testbed type

Procedure

  • Testbed configuration - Setup eBGP sessions and prefixes.

    • Generate config for 2 DUT and ATE ports where:
      • DUT port 1 to ATE port 1.
      • DUT port 2 to ATE port 2.
    • Configure ATE port 1 with an external type BGP session to DUT port 1.
      • Advertise ipv4 and ipv6 prefixes to DUT port 1 using the following communities:
        • prefix-set-1 with 2 ipv6 and 2 ipv4 routes without communities.
        • prefix-set-2 with 2 ipv6 and 2 ipv4 routes with communities [5:5, 6:6 ].

  • RT-7.8.1 - Validate prefixes are propagated by DUT

    • For IPv4 and IPv6 prefixes:
      • Observe received prefixes at ATE port-2.
    • Send traffic from ATE port-2 to all prefix-sets-1,2.
      • Verify traffic is received on ATE port 1 for all prefixes.
      • Stop traffic

  • RT-7.8.2 - Create policy to set standard community for all routes using OC release 3.x

    • Configure the following community sets on the DUT. (prefix: /routing-policy/defined-sets/bgp-defined-sets/)

      • Create a community-sets/community-set named 'match_std_comms' with members as follows:
        • community-member = [ "5:5" ]
      • Create a community-sets/community-set named 'add_std_comms' with members as follows:
        • community-member = [ "10:10", "20:20", "30:30" ]

    • Create /routing-policy/policy-definitions/policy-definition/policy-definition[name='add_std_comms']/ with the following statements/

      • statement[name='add_std_comms']/
        • actions/bgp-actions/set-community/reference/config/community-set-refs = /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set[name='add_std_comms']
        • actions/bgp-actions/set-community/config/options = ADD
        • actions/bgp-actions/set-community/config/method = REFERENCE
        • actions/config/policy-result = NEXT_STATEMENT
      • statement[name='accept_all_routes']/
        • actions/config/policy-result = ACCEPT_ROUTE

    • Create a /routing-policy/policy-definitions/policy-definition/policy-definition[name='match_and_add_comms'/ with the following statements/

      • statement[name='match_and_add_std_comms']/
        • conditions/bgp-conditions/match-community-set/config/community-set = 'match_std_comms'
        • conditions/bgp-conditions/match-community-set/config/match-set-options = ANY
        • actions/bgp-actions/set-community/reference/config/community-set-refs = 'add_std_comms'
        • actions/bgp-actions/set-community/config/options = ADD
        • actions/bgp-actions/set-community/config/method = REFERENCE
        • actions/config/policy-result = NEXT_STATEMENT
      • statement[name='accept_all_routes']/
        • actions/config/policy-result = ACCEPT_ROUTE

    • For each policy-definition created, run a subtest (RT-7.8.2.x-neighbor-<policy_name_here>) to

      • Use gnmi Set REPLACE option for:
        • /routing-policy/policy-definitions to configure the policy
        • Use /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy to apply the policy on the DUT bgp neighbor to the ATE port 1.
      • Verify routes are received on ATE port 1 for all prefixes (since all routes are accepted by policies).
      • Verify expected communities are present in ATE.
      • Verify expected communities are present in DUT state.
        • Do not fail test if this path is not supported, only log results
        • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv4-unicast/neighbors/neighbor/adj-rib-in-post/routes/route/state/community-index
        • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv6-unicast/neighbors/neighbor/adj-rib-in-post/routes/route/state/community-index

    • For each policy-definition created, run a sub-test (RT-7.8.2.x-peer-group-<policy_name_here>) to

      • Use gnmi Set REPLACE option for:

        • /routing-policy/policy-definitions to configure the policy
        • Use /network-instances/network-instance/protocols/protocol/bgp/peer-groups/peer-group/afi-safis/afi-safi/apply-policy/config/import-policy to apply the policy on the DUT bgp neighbor to the ATE port 1.

      • Verify expected communities are present in ATE.

      • Verify expected communities are present in DUT state.

        • Do not fail test if this path is not supported, only log results
        • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv4-unicast/neighbors/neighbor/adj-rib-in-post/routes/route/state/community-index
        • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv6-unicast/neighbors/neighbor/adj-rib-in-post/routes/route/state/community-index

      • Expected result - communities

        add_std_comms match_and_add_std_comms
        prefix-set-1 [ 10:10, 20:20, 30:30 ] none
        prefix-set-2 [ 10:10, 20:20, 30:30, 5:5, 6:6 ] [ 10:10, 20:20, 30:30, 5:5, 6:6 ]

Config Parameter Coverage

Policy for community-set configuration

  • /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/config/community-set-name
  • /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/config/community-member

Policy action configuration

  • /routing-policy/policy-definitions/policy-definition/config/name
  • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/set-community/reference/config/community-set-refs

Policy for community-set match configuration

  • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/config/community-set
  • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-community-set/config/match-set-options

Policy attachment point configuration

  • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy
  • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/export-policy
  • /network-instances/network-instance/protocols/protocol/bgp/peer-groups/peer-group/apply-policy/config/import-policy
  • /network-instances/network-instance/protocols/protocol/bgp/peer-groups/peer-group/apply-policy/config/export-policy

Telemetry Parameter Coverage

  • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv4-unicast/neighbors/neighbor/adj-rib-in-post/routes/route/state/community-index
  • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv6-unicast/neighbors/neighbor/adj-rib-in-post/routes/route/state/community-index

OpenConfig Path and RPC Coverage

rpcs:
  gnmi:
    gNMI.Get:
    gNMI.Set:
    gNMI.Subscribe:

Minimum DUT Required

vRX - Virtual Router Device

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