added mclag sonic yang

src/sonic-yang-models/setup.py

@@ -71,6 +71,7 @@
                          './yang-models/sonic-versions.yang',
                          './yang-models/sonic-vlan.yang',
                          './yang-models/sonic-vrf.yang',
+                         './yang-models/sonic-mclag.yang',
                          './yang-models/sonic_yang_tree']),
     ],
     zip_safe=False,

src/sonic-yang-models/tests/files/sample_config_db.json

@@ -24,6 +24,16 @@
                 "tpid": "0x9200",
                 "mtu": "9100",
                 "lacp_key": "auto"
+            },
+            "PortChannel2": {
+                "admin_status": "up",
+                "min_links": "1",
+                "members": [
+                    "Ethernet12"
+                ],
+                "tpid": "0x9200",
+                "mtu": "9100",
+                "lacp_key": "auto"
             }
         },
         "PORTCHANNEL_INTERFACE": {
@@ -34,7 +44,8 @@
         },
         "PORTCHANNEL_MEMBER": {
             "PortChannel0003|Ethernet1": {},
-            "PortChannel0004|Ethernet2": {}
+            "PortChannel0004|Ethernet2": {},
+            "PortChannel2|Ethernet12": {}
         },
         "VLAN_INTERFACE": {
             "Vlan111": {
@@ -232,7 +243,17 @@
                 "vlanid": "777",
                 "mtu": "9216",
                 "admin_status": "up"
-            }
+            },
+            "Vlan12": {
+                "description": "mclag session ve",
+                "dhcp_servers": [
+                    "12.1.1.1"
+                ],
+                "vlanid": "12",
+                "mtu": "9216",
+                "admin_status": "up"
+            },
+
         },
         "DEVICE_NEIGHBOR": {
             "Ethernet112": {
@@ -805,6 +826,9 @@
             },
             "Vlan111|PortChannel0003": {
                 "tagging_mode": "untagged"
+            },
+            "Vlan12|PortChannel2": {
+                "tagging_mode": "tagged"
             }
         },
         "LOOPBACK_INTERFACE": {
@@ -1011,9 +1035,28 @@
                 "trap_ids": "ip2me",
                 "trap_group": "queue1_group1"
             }
+        },
+
+        "MCLAG_DOMAIN": {
+            "123": {
+                "source_ip": "12.1.1.1",
+                "peer_ip": "12.1.1.2",
+                "peer_link": "PortChannel2",
+                "keepalive_interval": "1",
+                "session_timeout": "30"
+            }
+        },
+        "MCLAG_INTERFACE": {
+            "123|PortChannel0004": {
+                "if_type": "PortChannel"
+            }
+        },
+        "MCLAG_UNIQUE_IP": {
+            "Vlan12": {
+                "unique_ip": "enable"
+            }
         }
     },
-
     "SAMPLE_CONFIG_DB_UNKNOWN": {
         "UNKNOWN_TABLE": {
             "Error": "This Table is for testing, This Table does not have YANG models."

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

@@ -0,0 +1,36 @@
+{
+    "MCLAG_VALID_DOMAIN_CFG_TEST": {
+	"desc": "valid mclag configuration test"
+    },
+    "MCLAG_VALID_DOMAIN_PEERLINK_ETH_TEST": {
+	"desc": "valid mclag configuration test with peer link ethernet"
+    },
+    "MCLAG_INVALID_DOMAIN_IDS_TEST": {
+	"desc": "configure mclag domain id in range"
+    },
+    "MCLAG_INVALID_KEEPALIVE_TEST": {
+	"desc": "configure mclag keepalive values in range"
+    },
+    "MCLAG_INVALID_SESSION_TIMEOUT_TEST": {
+	"desc": "configure mclag session timeout in range"
+    },
+    "MCLAG_INVALID_KEEPALIVE_MUST_COND_TEST": {
+	"desc": "Invalid session and keepalive multiplier",
+	"eStrKey" : "Must",
+	"eStr": ["session_timeout"]
+    },
+    "MCLAG_INTERFACE_DOMAIN_ABSENT_TEST": {
+	"desc": "mclag interface configured without domain",
+	"eStr": ["domain_id"]
+    },
+    "MCLAG_UNIQUE_IP_DOMAIN_ABSENT_TEST": {
+	"desc": "mclag unique ip configured without domain",
+	"eStrKey" : "Must",
+	"eStr": ["domain_id"]
+    },
+    "MCLAG_UNIQUE_IP_ADDR_PRESENT_MUST_TEST": {
+	"desc": "mclag unique ip configured without domain",
+	"eStrKey" : "Must",
+	"eStr": ["domain_id"]
+    }
+}