adding a criterion for inner vlans
used by olt to match on the inner vlan

Change-Id: I7671b68d9860d598395cba134a589ca23f264c7e
diff --git a/core/api/src/main/java/org/onosproject/net/flow/TrafficSelector.java b/core/api/src/main/java/org/onosproject/net/flow/TrafficSelector.java
index 0d055ad..b45dc45 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/TrafficSelector.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/TrafficSelector.java
@@ -129,6 +129,22 @@
         Builder matchVlanPcp(byte vlanPcp);
 
         /**
+         * Matches the inner vlan id.
+         *
+         * @param vlanId a vlan id
+         * @return a selection builder
+         */
+        Builder matchInnerVlanId(VlanId vlanId);
+
+        /**
+         * Matches a vlan priority.
+         *
+         * @param vlanPcp a vlan priority
+         * @return a selection builder
+         */
+        Builder matchInnerVlanPcp(byte vlanPcp);
+
+        /**
          * Matches an IP DSCP (6 bits in ToS field).
          *
          * @param ipDscp an IP DSCP value