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feature/policy_forwarding/otg_tests/mpls_gre_udp_decap_test/README.md
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| # PF-1.7 Decapsulate MPLS in GRE and UDP | ||
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| Create a policy-forwarding configuration using gNMI to decapsulate MPLS | ||
| in GRE and UDP packets which are sent to a IP from a decap pool or loopback address and apply to | ||
| the DUT. | ||
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| ## Topology | ||
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| * [`featureprofiles/topologies/atedut_2.testbed`](https://github.com/openconfig/featureprofiles/blob/main/topologies/atedut_2.testbed) | ||
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| ## Test setup | ||
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| TODO: Complete test environment setup steps | ||
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| inner_ipv6_dst_A = "2001:aa:bb::1/128" | ||
| inner_ipv6_dst_B = "2001:aa:bb::2/128" | ||
| inner_ipv6_default = "::/0" | ||
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| ipv4_inner_dst_A = "10.5.1.1/32" | ||
| ipv4_inner_dst_B = "10.5.1.2/32" | ||
| ipv4_inner_default = "0.0.0.0/0" | ||
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| outer_ipv6_src = "2001:f:a:1::0" | ||
| outer_ipv6_dst_A = "2001:f:c:e::1" | ||
| outer_ipv6_dst_B = "2001:f:c:e::2" | ||
| outer_ipv6_dst_def = "2001:1:1:1::0" | ||
| outer_dst_udp_port = "6635" | ||
| outer_dscp = "26" | ||
| outer_ip-ttl = "64" | ||
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| ## Procedure | ||
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| ### PF-1.7.1 - MPLS in GRE decapsulation set by gNMI | ||
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| Canonical OpenConfig for policy forwarding, matching IP prefix with action | ||
| decapsulate in GRE. | ||
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| ```json | ||
| { | ||
| "openconfig-network-instance": { | ||
| "network-instances": [ | ||
| { | ||
| "afts": { | ||
| "policy-forwarding": { | ||
| "policies": [ | ||
| { | ||
| "config": { | ||
| "policy-id": "default decap rule", | ||
| "type": "PBR_POLICY" | ||
| }, | ||
| "policy": "default decap rule", | ||
| "rules": [ | ||
| { | ||
| "config": { | ||
| "sequence-id": 1, | ||
| }, | ||
| "ipv6": { | ||
| "config": { | ||
| "destination-address": "decap_ipv6" | ||
| } | ||
| }, | ||
| "action": { | ||
| "decapsulate-mpls-in-gre": TRUE | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| ``` | ||
| * Push the gNMI the policy forwarding configuration | ||
| * Push the configuration to DUT using gnmi.Set with REPLACE option | ||
| * Configure ATE port 1 with traffic flow | ||
| * Flow should have a packet encap format : outer_decap_gre_ipv6 <- MPLS label <- inner_decap_ipv6 | ||
| * Generate traffic from ATE port 1 | ||
| * Validate ATE port 2 receives the innermost IPv4 traffic with correct VLAN and inner_decap_ipv6 | ||
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| ### PF-1.7.2 - MPLS in UDP decapsulation set by gNMI | ||
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| Canonical OpenConfig for policy forwarding, matching IP prefix with action | ||
| decapsulate MPLS in UDP. | ||
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| ```json | ||
| { | ||
| "openconfig-network-instance": { | ||
| "network-instances": [ | ||
| { | ||
| "afts": { | ||
| "policy-forwarding": { | ||
| "policies": [ | ||
| { | ||
| "config": { | ||
| "policy-id": "default decap rule", | ||
| "type": "PBR_POLICY" | ||
| }, | ||
| "policy": "default decap rule", | ||
| "rules": [ | ||
| { | ||
| "config": { | ||
| "sequence-id": 1, | ||
| }, | ||
| "ipv6": { | ||
| "config": { | ||
| "destination-address": "decap_ipv6" | ||
| } | ||
| }, | ||
| "action": { | ||
| "decapsulate-mpls-in-udp": TRUE | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| ``` | ||
| * Push the gNMI the policy forwarding configuration | ||
| * Push the configuration to DUT using gnmi.Set with REPLACE option | ||
| * Configure ATE port 1 with traffic flow | ||
| * Flow should have a packet encap format : outer_decap_udp_ipv6 <- MPLS label <- inner_decap_ipv6 | ||
| * Generate traffic from ATE port 1 | ||
| * Validate ATE port 2 receives the innermost IPv4 traffic with correct VLAN and inner_decap_ipv6 | ||
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| ## OpenConfig Path and RPC Coverage | ||
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| ```yaml | ||
| paths: | ||
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| # Paths added for PF-1.7.1 - MPLS in GRE decapsulation set by gNMI | ||
| /network-instances/network-instance/policy-forwarding/policies/policy/rules/rule/ipv6/config/destination-address: | ||
| # TODO: /network-instances/network-instance/policy-forwarding/policies/policy/rules/rule/action/config/decapsulate-mpls-in-gre: | ||
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| # Paths added for PF-1.7.2 - MPLS in UDP decapsulation set by gNMI | ||
| /network-instances/network-instance/policy-forwarding/policies/policy/rules/rule/action/config/decapsulate-mpls-in-udp: | ||
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| rpcs: | ||
| gnmi: | ||
| gNMI.Set: | ||
| union_replace: true | ||
| replace: true | ||
| gNMI.Subscribe: | ||
| on_change: true | ||
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| ``` | ||
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| ## Required DUT platform | ||
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| * FFF |
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