[Link Event Damping] Add YANG must constraints and test cases

- Add must constraint: decay_half_life <= max_suppress_time
- Add must constraint: reuse_threshold <= suppress_threshold
- Add valid and invalid test cases for dampening parameters

Co-Authored-By: Claude Opus 4.6 <[email protected]>

Author: DendroLabs

src/sonic-yang-models/tests/yang_model_tests/tests/port.json

@@ -175,8 +175,22 @@
     },
     "PORT_WITH_NO_LANES_ON_MULT_ASIC_VS_2": {
         "desc": "PORT_WITH_NO_LANES_ON_MULT_ASIC_VS_2 no failure."
+    },
+    "PORT_VALID_DAMPING_AIED_TEST": {
+        "desc": "PORT_VALID_DAMPING_AIED_TEST no failure."
+    },
+    "PORT_VALID_DAMPING_AIED_MONITOR_TEST": {
+        "desc": "PORT_VALID_DAMPING_AIED_MONITOR_TEST no failure."
+    },
+    "PORT_INVALID_DAMPING_ALGORITHM_TEST": {
+        "desc": "PORT_INVALID_DAMPING_ALGORITHM_TEST invalid algorithm pattern failure.",
+        "eStrKey" : "Pattern",
+        "eStr": ["disabled|aied|aied-monitor"]
+    },
+    "PORT_INVALID_DAMPING_HALFLIFE_GT_MAXSUPPRESS_TEST": {
+        "desc": "PORT_INVALID_DAMPING_HALFLIFE_GT_MAXSUPPRESS_TEST must condition failure.",
+        "eStrKey" : "Must",
+        "eStr": ["decay_half_life must be less than or equal to max_suppress_time"]
     }
 
-
-
 }

src/sonic-yang-models/tests/yang_model_tests/tests_config/port.json

@@ -1013,7 +1013,86 @@
                         "alias": "etp1a",
                         "speed": 100000,
                         "role": "Int"
-                        
+
+                    }
+                ]
+            }
+        }
+    },
+
+    "PORT_VALID_DAMPING_AIED_TEST": {
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "alias": "eth8",
+                        "lanes": "65",
+                        "speed": 25000,
+                        "link_event_damping_algorithm": "aied",
+                        "max_suppress_time": 20,
+                        "decay_half_life": 5,
+                        "suppress_threshold": 2000,
+                        "reuse_threshold": 1000,
+                        "flap_penalty": 1000
+                    }
+                ]
+            }
+        }
+    },
+
+    "PORT_VALID_DAMPING_AIED_MONITOR_TEST": {
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "alias": "eth8",
+                        "lanes": "65",
+                        "speed": 25000,
+                        "link_event_damping_algorithm": "aied-monitor",
+                        "max_suppress_time": 20,
+                        "decay_half_life": 5,
+                        "suppress_threshold": 2000,
+                        "reuse_threshold": 1000,
+                        "flap_penalty": 1000
+                    }
+                ]
+            }
+        }
+    },
+
+    "PORT_INVALID_DAMPING_ALGORITHM_TEST": {
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "alias": "eth8",
+                        "lanes": "65",
+                        "speed": 25000,
+                        "link_event_damping_algorithm": "invalid_value"
+                    }
+                ]
+            }
+        }
+    },
+
+    "PORT_INVALID_DAMPING_HALFLIFE_GT_MAXSUPPRESS_TEST": {
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "alias": "eth8",
+                        "lanes": "65",
+                        "speed": 25000,
+                        "link_event_damping_algorithm": "aied",
+                        "max_suppress_time": 10,
+                        "decay_half_life": 15,
+                        "suppress_threshold": 2000,
+                        "reuse_threshold": 1000,
+                        "flap_penalty": 1000
                     }
                 ]
             }

src/sonic-yang-models/yang-models/sonic-port.yang

@@ -276,6 +276,9 @@ module sonic-port{
 								 Must be less than or equal to max_suppress_time.
 								 A value of 0 means this parameter is not configured.
 								 Industry default: 5 seconds.";
+					must "current() = 0 or ../max_suppress_time = 0 or current() <= ../max_suppress_time" {
+						error-message "decay_half_life must be less than or equal to max_suppress_time";
+					}
 					type uint32;
 					default 0;
 				}
@@ -297,6 +300,9 @@ module sonic-port{
 								 Must be less than or equal to suppress_threshold.
 								 A value of 0 means this parameter is not configured.
 								 Industry default: 1000.";
+					must "current() = 0 or ../suppress_threshold = 0 or current() <= ../suppress_threshold" {
+						error-message "reuse_threshold must be less than or equal to suppress_threshold";
+					}
 					type uint32;
 					default 0;
 				}