Y-Flow: Protected path: Creation: Error: Couldn’t find non overlapping protected path

[yuliiamir]

The issue occurred during Y-Flow with protected path creation(a flaky issue as it was caught for a specific switch triplet), but it seems like there is an available path for both main and protected path

STR:

1. Create Y-Flow with protected path (swT: shared ep(sw3) --> ep1(sw7)-ep2(sw2))

{
  "y_flow_id" : "28Nov-y-flow",
  "shared_endpoint" : {
    "switch_id" : "00:00:00:00:00:00:00:03",
    "port_number" : 10
  },
  "maximum_bandwidth" : 1000,
  "path_computation_strategy" : "COST",
  "encapsulation_type" : "transit_vlan",
  "max_latency" : null,
  "max_latency_tier2" : null,
  "ignore_bandwidth" : false,
  "periodic_pings" : false,
  "pinned" : false,
  "priority" : null,
  "strict_bandwidth" : false,
  "description" : "See, how she leans her cheek upon her hand! O that I were a glove upon that hand, that I might touch that cheek!.",
  "allocate_protected_path" : true,
  "diverse_flow_id" : null,
  "sub_flows" : [ {
    "flow_id" : "S1.y-flow",
    "endpoint" : {
      "switch_id" : "00:00:00:00:00:00:00:07",
      "port_number" : 10,
      "vlan_id" : 1696,
      "inner_vlan_id" : 1786
    },
    "shared_endpoint" : {
      "vlan_id" : 501,
      "inner_vlan_id" : 3951
    },
    "description" : null
  }, {
    "flow_id" : "S2.y-flow",
    "endpoint" : {
      "switch_id" : "00:00:00:00:00:00:00:02",
      "port_number" : 11,
      "vlan_id" : 2001,
      "inner_vlan_id" : 2125
    },
    "shared_endpoint" : {
      "vlan_id" : 3578,
      "inner_vlan_id" : 770
    },
    "description" : null
  } ]
}

Actual result:

{
  “correlation_id” : “3edfd053-3615-4f1a-858a-13721da1142a : fn-tests-46ba0db7-f2c3-48e3-a4bb-4c944659be3c”,
  “timestamp” : 1732721372672,
  “error-type” : “Object was not found”,
  “error-message” : “Could not create y-flow”,
  “error-description” : “ResourcesAllocationAction failed: Not enough bandwidth or no path found. Couldn’t find non overlapping protected path”
}

BUT Y-Flow with protected path on switch triplet swT: shared ep(sw3) --> ep1(sw2)-ep2(sw7) has been created successfully.

{
  "y_flow_id" : "28Nov-y-flow",
  "shared_endpoint" : {
    "switch_id" : "00:00:00:00:00:00:00:03",
    "port_number" : 10
  },
  "maximum_bandwidth" : 1000,
  "path_computation_strategy" : "COST",
  "encapsulation_type" : "transit_vlan",
  "max_latency" : null,
  "max_latency_tier2" : null,
  "ignore_bandwidth" : false,
  "periodic_pings" : false,
  "pinned" : false,
  "priority" : null,
  "strict_bandwidth" : false,
  "description" : "See, how she leans her cheek upon her hand! O that I were a glove upon that hand, that I might touch that cheek!.",
  "allocate_protected_path" : true,
  "diverse_flow_id" : null,
  "sub_flows" : [ {
    "flow_id" : "S1.y-flow",
    "endpoint" : {
      "switch_id" : "00:00:00:00:00:00:00:02",
      "port_number" : 10,
      "vlan_id" : 1696,
      "inner_vlan_id" : 1786
    },
    "shared_endpoint" : {
      "vlan_id" : 501,
      "inner_vlan_id" : 3951
    },
    "description" : null
  }, {
    "flow_id" : "S2.y-flow",
    "endpoint" : {
      "switch_id" : "00:00:00:00:00:00:00:07",
      "port_number" : 11,
      "vlan_id" : 2001,
      "inner_vlan_id" : 2125
    },
    "shared_endpoint" : {
      "vlan_id" : 3578,
      "inner_vlan_id" : 770
    },
    "description" : null
  } ]
}

YFlowWithProtectedPathDetailsSwT3---2-7.json

YFlowWithProtectedPathSwT3---2-7.json