1 files changed, 20 insertions, 1 deletions

diff --git a/v3po/api/src/main/yang/v3po.yang b/v3po/api/src/main/yang/v3po.yang
index f272a489a..18b68620e 100644
--- a/v3po/api/src/main/yang/v3po.yang
+++ b/v3po/api/src/main/yang/v3po.yang
@@ -9,7 +9,8 @@ module v3po {
        - ingress/egress ACLs support
        - moved ACL definitions to vpp-acl module
        - updated l2 container constraint (permit IP address on BVI interface)
-       - added PID of vpp process to vpp-state";
+       - added PID of vpp process to vpp-state
+       - added support for Loopback interfaces";
   }
 
   revision "2015-01-05" {
@@ -70,6 +71,10 @@ module v3po {
     base if:interface-type;
   }
 
+  identity loopback {
+    base if:interface-type;
+  }
+
   identity l2-fib-action {
     description "Base identity for l2-fib actions";
   }
@@ -244,6 +249,14 @@ module v3po {
     }
   }
 
+  grouping loopback-interface-base-attributes {
+    leaf mac {
+      type yang:phys-address;
+      mandatory false;
+      description "Mac address of the loopback interface";
+    }
+  }
+
   grouping ethernet-base-attributes {
     leaf mtu {
       type uint16 {
@@ -436,6 +449,12 @@ module v3po {
       uses tap-interface-config-attributes;
     }
 
+    container loopback {
+      presence "Presence of this container indicates loopback nature of the interface";
+      when "../if:type = 'v3po:loopback'";
+      uses loopback-interface-base-attributes;
+    }
+
     container ethernet {
       when "../if:type = 'ianaift:ethernetCsmacd'";
       uses ethernet-base-attributes;