aspath_and_community_test

RT-7.4: BGP Policy AS Path Set and Community Set

Summary

BGP policy configuration for AS Paths and Community Sets

Procedure

• RT-7.4.1 - Test setup

  • Generate config for 2 DUT ports, with DUT port 1 eBGP session to ATE port 1.

  • Generate config for ATE 2 ports, with ATE port 1 eBGP session to DUT port 1.

  • Configure ATE port 1 to advertise ipv4 and ipv6 prefixes using the following aspaths and communities:

    • prefix-set-1 with as path [100, 200, 300] and communities [100:1, 200:2, 300:3]
    • prefix-set-2 with as path [100, 400, 300] and communities [101:1]
    • prefix-set-3 with as path [109] and communities [109:1]
    • prefix-set-4 with as path [200] and communities [200:1]
    • prefix-set-5 with as path [300] and communities [100:1]

  • Establish eBGP sessions between ATE port-1 and DUT port-1

  • Generate traffic from ATE port-2 to all prefixes

  • Validate that traffic is received on ATE port-1 for all prefixes

• RT-7.4.2 - Validate single routing-policy containing as-path-set and ext-community-set

  • Create a as-path-set named any_my_regex_aspath with members

    • { as-path-set-member = [ "(10[0-9]]|200)" ] }

  • Create a community-set named any_my_regex_comms with members and match options as follows:

    • { community-member = [ "10[0-9]:1" ] }

  • Create a policy-definition named 'path_and_community' with the following statements

    • statement[name='match_community']/
      • conditions/bgp-conditions/match-community-set/config/community-set = 'any_my_regex_comms'
      • conditions/bgp-conditions/match-community-set/config/match-set-options = ANY
      • actions/config/policy-result = ACCEPT_ROUTE
    • statement[name='match_as']/
      • conditions/bgp-conditions/match-as-path-set/config/as-path-set = 'any_my_regex_aspath'
      • conditions/bgp-conditions/match-as-path-set/config/match-set-options = ANY
      • actions/config/policy-result = ACCEPT_ROUTE

  • Send traffic

    • Verify traffic is forwarded for routes with matching policy
    • Verify traffic is not forwarded for routes without matching policy

Expected prefix matches

prefix-set	path_and_community
prefix-set-1	accept
prefix-set-2	accept
prefix-set-3	accept
prefix-set-4	reject
prefix-set-5	reject

Config Parameter Coverage

Policy definition

• /routing-policy/policy-definitions/policy-definition/config/name
• /routing-policy/policy-definitions/policy-definition/statements/statement/config/name

Policy for community-set match

• /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
• /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/config/match-set-options
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/config/community-set
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/ import-policy

Policy for ext-community-set match

• /routing-policy/defined-sets/bgp-defined-sets/ext-community-sets/ext-community-set/config/ext-community-set-name
• /routing-policy/defined-sets/bgp-defined-sets/ext-community-sets/ext-community-set/config/ext-community-member
• /routing-policy/defined-sets/bgp-defined-sets/ext-community-sets/ext-community-set/config/match-set-options
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/config/ext-community-set
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/ import-policy

Policy for as-path match

• /routing-policy/defined-sets/bgp-defined-sets/as-path-sets/as-path-set/config/as-path-set-name
• /routing-policy/defined-sets/bgp-defined-sets/as-path-sets/as-path-set/config/as-path-set-member
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-as-path-set/config/as-path-set
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-as-path-set/config/match-set-options
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/ import-policy

Telemetry Parameter Coverage

Policy definition state

• /routing-policy/policy-definitions/policy-definition/state/name
• /routing-policy/policy-definitions/policy-definition/statements/statement/state/name

Policy for community-set match state

• /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/state/community-set-name
• /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/state/community-member
• /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/state/match-set-options
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/state/community-set

Policy for ext-community-set match state

• /routing-policy/defined-sets/bgp-defined-sets/ext-community-sets/ext-community-set/state/ext-community-set-name
• /routing-policy/defined-sets/bgp-defined-sets/ext-community-sets/ext-community-set/state/ext-community-member
• /routing-policy/defined-sets/bgp-defined-sets/ext-community-sets/ext-community-set/state/match-set-options
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/state/ext-community-set

Policy for as-path match state

• /routing-policy/defined-sets/bgp-defined-sets/as-path-sets/as-path-set/state/as-path-set-name
• /routing-policy/defined-sets/bgp-defined-sets/as-path-sets/as-path-set/state/as-path-set-member
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-as-path-set/state/as-path-set
• /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-as-path-set/state/match-set-options

Paths to verify policy state

• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/export-policy
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy

Paths to verify prefixes sent and received

• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/sent
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/received-pre-policy
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/received
• /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/installed

OpenConfig Path and RPC Coverage

The below yaml defines the OC paths intended to be covered by this test. OC paths used for test setup are not listed here.

paths:
  ## Config paths
  ### Policy definition
  /routing-policy/policy-definitions/policy-definition/config/name:
  /routing-policy/policy-definitions/policy-definition/statements/statement/config/name:
  ### Policy for community-set match
  /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:
  /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/config/match-set-options:
  /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-community-set/config/community-set:
  /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/match-community-set/config/match-set-options:
  /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result:
  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy:

  ## State paths
  ### Policy definition state

  /routing-policy/policy-definitions/policy-definition/state/name:
  /routing-policy/policy-definitions/policy-definition/statements/statement/state/name:

  ### Policy for community-set match state

  /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/state/community-set-name:
  /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/state/community-member:
  /routing-policy/defined-sets/bgp-defined-sets/community-sets/community-set/state/match-set-options:
  /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/bgp-conditions/state/community-set:

  ### Paths to verify policy state

  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/export-policy:
  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy:

  ### Paths to verify prefixes sent and received

  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/sent:
  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/received-pre-policy:
  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/received:
  /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/state/prefixes/installed:
rpcs:
  gnmi:
    gNMI.Set:
    gNMI.Get:
    gNMI.Subscribe: