diff --git a/schema/metrics.statistics.yml b/schema/metrics.statistics.yml
index f1ede3e..698080d 100644
--- a/schema/metrics.statistics.yml
+++ b/schema/metrics.statistics.yml
@@ -18,3 +18,10 @@ properties:
         - lldp
         - clients
         - tid-stats
+  wired-clients-max-num:
+    description:
+      Configure maximum number of FDB entries device's allowed to report.
+      If omitted, device-default number should be used (2000).
+      Setting to zero means no entries should be reported, flag should be raised.
+      If device's current FDB size exceeds configured value, flag should be raised as well.
+    type: integer
diff --git a/state/mac-address-list.yml b/state/mac-address-list.yml
new file mode 100644
index 0000000..95f971b
--- /dev/null
+++ b/state/mac-address-list.yml
@@ -0,0 +1,22 @@
+type: object
+description:
+  This section describes the global (device-wise) mac-address-list (FDB table / wired clients).
+properties:
+  overflow:
+    description:
+      Flag indicates that device could report an amount of FDB entries, which is bigger than what cloud had requested.
+    type: boolean
+additionalProperties:
+  type: object
+  additionalProperties:
+    description:
+      VID (vlan id) identifier
+    type: array
+    items:
+      type: string
+examples:
+  - overflow: true
+    Ethernet1:
+      '1': [ 'AABBCCDDEEFF', '112233445566']
+    Ethernet2:
+      '10': [ '11BBCCDDEEFF', '332233445566']
diff --git a/state/state.yml b/state/state.yml
index 5a415a2..7058cd3 100644
--- a/state/state.yml
+++ b/state/state.yml
@@ -52,3 +52,5 @@ properties:
         patternProperties:
           "^(eth|lan|wan)[0-9]*$":
             $ref: "https://ucentral.io/state/v1/link-state/"
+  mac-address-list:
+    $ref: "https://ucentral.io/state/v1/mac-address-list/"