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Github Action edited this page Jun 10, 2024 · 1 revision

RT-1.30: BGP nested import/export policy attachment

Summary

  • A policy calling another policy to be attached to a neighbor's import-policy
  • A policy calling another policy to be attached to a neighbor's export-policy
  • Applicable to both IPv4 and IPv6 BGP neighbors
  • Single level nesting is sufficient

Testbed type

Procedure

Applying configuration

For each section of configuration below, prepare a gnmi.SetBatch with all the configuration items appended to one SetBatch. Then apply the configuration to the DUT in one gnmi.Set using the replace option

Initial Setup:

  • Connect DUT port-1, 2 to ATE port-1, 2
  • Configure IPv4/IPv6 addresses on the ports
  • Create an IPv4 networks i.e. ipv4-network-1 = 192.168.10.0/24 attached to ATE port-1
  • Create an IPv6 networks i.e. ipv6-network-1 = 2024:db8:128:128::/64 attached to ATE port-1
  • Create an IPv4 networks i.e. ipv4-network-2 = 192.168.20.0/24 attached to ATE port-2
  • Create an IPv6 networks i.e. ipv6-network-2 = 2024:db8:64:64::/64 attached to ATE port-2
  • Configure IPv4 and IPv6 eBGP between DUT Port-1 and ATE Port-1
    • Note: Nested policies will be applied to this eBGP session later in the test to validate the results
    • /network-instances/network-instance/protocols/protocol/bgp/global/config
    • /network-instances/network-instance/protocols/protocol/bgp/global/afi-safis/afi-safi/config/
    • Advertise ipv4-network-1 = 192.168.10.0/24 and ipv6-network-1 = 2024:db8:128:128::/64 from ATE to DUT over the IPv4 and IPv6 eBGP session on port-1
  • Configure IPv4 and IPv6 eBGP between DUT Port-2 and ATE Port-2
    • Note: This eBGP session is only used to advertise prefixes to DUT and receive prefixes from DUT
    • /network-instances/network-instance/protocols/protocol/bgp/global/config
    • /network-instances/network-instance/protocols/protocol/bgp/global/afi-safis/afi-safi/config/
    • Advertise ipv4-network-2 = 192.168.20.0/24 and ipv6-network-2 = 2024:db8:64:64::/64 from ATE to DUT over the IPv4 and IPv6 eBGP session on port-2
    • Set default import and export policy to NEXT_STATEMENT for this eBGP session only
      • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-import-policy
      • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-export-policy

RT-1.30.1 [TODO: https://github.com/openconfig/featureprofiles/issues/2608]

IPv4 BGP nested import policy test

Configure a route-policy to set the local preference
  • Configure an IPv4 route-policy definition with the name lp-policy-v4
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy lp-policy-v4 configure a statement with the name lp-statement-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy lp-policy-v4 statement lp-statement-v4 set policy-result as NEXT_STATEMENT
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure BGP actions to set local-pref
  • For routing-policy lp-policy-v4 statement lp-statement-v4 set local-preference to 200
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/config/set-local-pref
Configure a route-policy to match the prefix
  • Configure an IPv4 route-policy definition with the name match-policy-v4
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy match-policy-v4 configure a statement with the name match-statement-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy match-policy-v4 statement match-statement-v4 set policy-result as ACCEPT_ROUTE
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure a prefix-set for route filtering/matching
  • Configure a prefix-set with the name prefix-set-v4 and mode IPV4
    • /routing-policy/defined-sets/prefix-sets/prefix-set/config/name
    • /routing-policy/defined-sets/prefix-sets/prefix-set/config/mode
  • For prefix-set prefix-set-v4 set the ip-prefix to ipv4-network-1 i.e. 192.168.10.0/24 and masklength to exact
    • /routing-policy/defined-sets/prefix-sets/prefix-set/prefixes/prefix/config/ip-prefix
    • /routing-policy/defined-sets/prefix-sets/prefix-set/prefixes/prefix/config/masklength-range
Attach the prefix-set to route-policy
  • For routing-policy match-policy-v4 statement match-statement-v4 set match options to ANY
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/match-prefix-set/config/match-set-options
  • For routing-policy match-policy-v4 statement match-statement-v4 set prefix set to prefix-set-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/match-prefix-set/config/prefix-set
Configure a nested policy
  • For routing-policy lp-policy-v4 call the policy match-policy-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/config/call-policy
Configure the parent bgp import policy for the DUT BGP neighbor on ATE Port-1
  • Set default import policy to REJECT_ROUTE (Note: even though this is the OC default, the DUT should still accept this configuration)
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-import-policy
  • Apply the parent policy lp-policy-v4 to the BGP neighbor
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy
Verification
  • Use gNMI replace to send the configuration to the DUT.
  • Use gNMI subscribe with mode once to retrieve the configuration state from the DUT.
  • Verify that the parent lp-policy-v4 policy is successfully applied to the DUT BGP neighbor on ATE Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy
  • Verify that the parent lp-policy-v4 policy has a child policy match-policy-v4 attached
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/state/call-policy
Validate test results
  • Validate that the DUT receives the prefix ipv4-network-1 i.e. 192.168.10.0/24 from BGP neighbor on ATE Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv4-unicast/loc-rib/routes/route/prefix
  • Validate that the prefix ipv4-network-1 i.e. 192.168.10.0/24 from BGP neighbor on ATE Port-1 has local preference set to 200
    • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/state/med
  • Initiate traffic from ATE Port-2 towards the DUT destined to ipv4-network-1 i.e. 192.168.10.0/24
    • Validate that the traffic is received on ATE Port-1

RT-1.30.2 [TODO: https://github.com/openconfig/featureprofiles/issues/2608]

IPv4 BGP nested export policy test

Configure a route-policy to prepend AS-PATH
  • Configure an IPv4 route-policy definition with the name asp-policy-v4
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy asp-policy-v4 configure a statement with the name asp-statement-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy asp-policy-v4 statement asp-statement-v4 set policy-result as NEXT_STATEMENT
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure BGP actions to prepend AS
  • For routing-policy asp-policy-v4 statement asp-statement-v4 set AS-PATH prepend to the ASN of the DUT
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/set-as-path-prepend/config/asn
Configure another route-policy to set the MED
  • Configure an IPv4 route-policy definition with the name med-policy-v4
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy med-policy-v4 configure a statement with the name med-statement-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy med-policy-v4 statement med-statement-v4 set policy-result as ACCEPT_ROUTE
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure BGP actions to set MED
  • For routing-policy med-policy-v4 statement med-statement-v4 set MED to 1000
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/config/set-med
Configure a nested policy
  • For routing-policy asp-policy-v4 attach the policy med-policy-v4
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/config/call-policy
Configure the parent bgp import policy for the DUT BGP neighbor on ATE Port-1
  • Set default import policy to REJECT_ROUTE (Note: even though this is the OC default, the DUT should still accept this configuration)
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-import-policy
  • Apply the parent policy asp-policy-v4 to the BGP neighbor
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy
Verification
  • Use gNMI subscribe with mode once to retrieve the configuration state from the DUT.
  • Verify that the parent asp-policy-v4 policy is successfully applied to the DUT BGP neighbor on ATE Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy
  • Verify that the parent asp-policy-v4 policy has a child policy med-policy-v4 attached
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/state/call-policy
Validate test results
  • Validate that the ATE receives the prefix ipv4-network-2 i.e. 192.168.20.0/24 from BGP neighbor on DUT Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv4-unicast/loc-rib/routes/route/prefix
  • Validate that the prefix ipv4-network-2 i.e. 192.168.20.0/24 on ATE from BGP neighbor on DUT Port-1 has AS-PATH with the ASN of DUT occuring twice
    • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/as-path/as-segment/state/member
  • Validate that the prefix ipv4-network-2 i.e. 192.168.20.0/24 from BGP neighbor on DUT Port-1 has MED set to 1000
    • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/state/med
  • Initiate traffic from ATE Port-1 towards the DUT destined ipv4-network-2 i.e. 192.168.20.0/24
    • Validate that the traffic is received on ATE Port-2

RT-1.30.3 [TODO: https://github.com/openconfig/featureprofiles/issues/2608]

IPv6 BGP nested import policy test

Configure a route-policy to set the local preference
  • Configure an IPv6 route-policy definition with the name lp-policy-v6
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy lp-policy-v6 configure a statement with the name lp-statement-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy lp-policy-v6 statement lp-statement-v6 set policy-result as NEXT_STATEMENT
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure BGP actions to set local-pref
  • For routing-policy lp-policy-v6 statement lp-statement-v6 set local-preference to 200
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/config/set-local-pref
Configure a route-policy to match the prefix
  • Configure an IPv6 route-policy definition with the name match-policy-v6
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy match-policy-v6 configure a statement with the name match-statement-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy match-policy-v6 statement match-statement-v6 set policy-result as ACCEPT_ROUTE
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure a prefix-set for route filtering/matching
  • Configure a prefix-set with the name prefix-set-v6 and mode IPV6
    • /routing-policy/defined-sets/prefix-sets/prefix-set/config/name
    • /routing-policy/defined-sets/prefix-sets/prefix-set/config/mode
  • For prefix-set prefix-set-v6 set the ip-prefix to ipv6-network-1 i.e. 2024:db8:128:128::/64 and masklength to exact
    • /routing-policy/defined-sets/prefix-sets/prefix-set/prefixes/prefix/config/ip-prefix
    • /routing-policy/defined-sets/prefix-sets/prefix-set/prefixes/prefix/config/masklength-range
Attach the prefix-set to route-policy
  • For routing-policy match-policy-v6 statement match-statement-v6 set match options to ANY
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/match-prefix-set/config/match-set-options
  • For routing-policy match-policy-v6 statement match-statement-v6 set prefix set to prefix-set-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/match-prefix-set/config/prefix-set
Configure a nested policy
  • For routing-policy lp-policy-v6 call the policy match-policy-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/config/call-policy
Configure the parent bgp import policy for the DUT BGP neighbor on ATE Port-1
  • Set default import policy to REJECT_ROUTE (Note: even though this is the OC default, the DUT should still accept this configuration)
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-import-policy
  • Apply the parent policy lp-policy-v6 to the BGP neighbor
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy
Verification
  • Use gNMI subscribe with mode once to retrieve the configuration state from the DUT.
  • Verify that the parent lp-policy-v6 policy is successfully applied to the DUT BGP neighbor on ATE Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy
  • Verify that the parent lp-policy-v6 policy has a child policy match-policy-v6 attached
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/state/call-policy
Validate test results
  • Validate that the DUT receives the prefix ipv6-network-1 i.e. 2024:db8:128:128::/64 from BGP neighbor on ATE Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv6-unicast/loc-rib/routes/route/prefix
  • Validate that the prefix ipv6-network-1 i.e. 2024:db8:128:128::/64 from BGP neighbor on ATE Port-1 has local preference set to 200
    • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/state/med
  • Initiate traffic from ATE Port-2 towards the DUT destined to ipv6-network-1 i.e. 2024:db8:128:128::/64
    • Validate that the traffic is received on ATE Port-1

RT-1.30.4 [TODO: https://github.com/openconfig/featureprofiles/issues/2608]

IPv6 BGP nested export policy test

Configure a route-policy to prepend AS-PATH
  • Configure an IPv6 route-policy definition with the name asp-policy-v6
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy asp-policy-v6 configure a statement with the name asp-statement-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy asp-policy-v6 statement asp-statement-v6 set policy-result as NEXT_STATEMENT
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure BGP actions to prepend AS
  • For routing-policy asp-policy-v6 statement asp-statement-v6 set AS-PATH prepend to the ASN of the DUT
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/set-as-path-prepend/config/asn
Configure another route-policy to set the MED
  • Configure an IPv6 route-policy definition with the name med-policy-v6
    • /routing-policy/policy-definitions/policy-definition/config/name
  • For routing-policy med-policy-v6 configure a statement with the name med-statement-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/config/name
  • For routing-policy med-policy-v6 statement med-statement-v6 set policy-result as ACCEPT_ROUTE
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/config/policy-result
Configure BGP actions to set MED
  • For routing-policy med-policy-v6 statement med-statement-v6 set MED to 1000
    • /routing-policy/policy-definitions/policy-definition/statements/statement/actions/bgp-actions/config/set-med
Configure a nested policy
  • For routing-policy asp-policy-v6 call the policy med-policy-v6
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/config/call-policy
Configure the parent bgp import policy for the DUT BGP neighbor on ATE Port-1
  • Set default import policy to REJECT_ROUTE (Note: even though this is the OC default, the DUT should still accept this configuration)
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-import-policy
  • Apply the parent policy asp-policy-v6 to the BGP neighbor
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/import-policy
Verification
  • Use gNMI subscribe with mode once to retrieve the configuration state from the DUT.
  • Verify that the parent asp-policy-v6 policy is successfully applied to the DUT BGP neighbor on ATE Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy
  • Verify that the parent asp-policy-v6 policy has a child policy med-policy-v6 attached
    • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/state/call-policy
Validate test results
  • Validate that the ATE receives the prefix ipv6-network-2 i.e. 2024:db8:64:64::/64 from BGP neighbor on DUT Port-1
    • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv6-unicast/loc-rib/routes/route/prefix
  • Validate that the prefix ipv6-network-2 i.e. 2024:db8:64:64::/64 on ATE from BGP neighbor on DUT Port-1 has AS-PATH with the ASN of DUT occuring twice
    • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/as-path/as-segment/state/member
  • Validate that the prefix ipv6-network-2 i.e. 2024:db8:64:64::/64 from BGP neighbor on DUT Port-1 has MED set to 1000
    • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/state/med
  • Initiate traffic from ATE Port-1 towards the DUT destined to ipv6-network-1 i.e. 2024:db8:64:64::/64
    • Validate that the traffic is received on ATE Port-2

Config parameter coverage

  • /network-instances/network-instance/protocols/protocol/bgp/global/config
  • /network-instances/network-instance/protocols/protocol/bgp/global/afi-safis/afi-safi/config/
  • /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/config/policy-result
  • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/config/call-policy
  • /routing-policy/defined-sets/prefix-sets/prefix-set/config/name
  • /routing-policy/defined-sets/prefix-sets/prefix-set/config/mode
  • /routing-policy/defined-sets/prefix-sets/prefix-set/prefixes/prefix/config/ip-prefix
  • /routing-policy/defined-sets/prefix-sets/prefix-set/prefixes/prefix/config/masklength-range
  • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/match-prefix-set/config/match-set-options
  • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/match-prefix-set/config/prefix-set
  • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/default-import-policy
  • /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/default-export-policy
  • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/config/export-policy

Telemetry parameter coverage

  • /routing-policy/policy-definitions/policy-definition/statements/statement/conditions/state/call-policy
  • /network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/afi-safis/afi-safi/apply-policy/state/import-policy
  • /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/rib/attr-sets/attr-set/as-path/as-segment/state/member
  • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv6-unicast/loc-rib/routes/route/prefix
  • /network-instances/network-instance/protocols/protocol/bgp/rib/afi-safis/afi-safi/ipv4-unicast/loc-rib/routes/route/prefix
  • /network-instances/network-instance/protocols/protocol/bgp/rib/attr-sets/attr-set/state/med

OpenConfig Path and RPC Coverage

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

Required DUT platform

  • vRX
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