diff --git a/validator/bridgedomain.py b/validator/bridgedomain.py
index 4907c45..e80120e 100644
--- a/validator/bridgedomain.py
+++ b/validator/bridgedomain.py
@@ -21,6 +21,16 @@ class NullHandler(logging.Handler):
         pass
 
 
+def get_bridgedomains(yaml):
+    """ Return a list of all bridgedomains. """
+    ret = []
+    if not 'bridgedomains' in yaml:
+        return ret
+    for ifname, iface in yaml['bridgedomains'].items():
+        ret.append(ifname)
+    return ret
+
+
 def get_by_name(yaml, ifname):
     """ Return the BridgeDomain by name, if it exists. Return None,None otherwise. """
     try:
diff --git a/validator/test_bridgedomain.py b/validator/test_bridgedomain.py
index ac27f19..52b58b0 100644
--- a/validator/test_bridgedomain.py
+++ b/validator/test_bridgedomain.py
@@ -34,3 +34,7 @@ class TestBridgeDomainMethods(unittest.TestCase):
         self.assertIn("BondEthernet0", ifs)
         self.assertIn("GigabitEthernet1/0/0", ifs)
         self.assertIn("GigabitEthernet2/0/0.100", ifs)
+
+    def test_get_bridgedomains(self):
+        ifs = bridgedomain.get_bridgedomains(self.cfg)
+        self.assertEqual(len(ifs), 3)