Fix a bug: there are two ECN bits in the IPv4 header, not three.
Change-Id: Ibdfce817f2a506644e0f9cd16f46cf6ab1f75eb7
diff --git a/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java b/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
index 1eff64b..5164e45 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
@@ -133,7 +133,7 @@
/**
* Creates a match on IP ECN field using the specified value.
*
- * @param ipEcn ip ecn value (3 bits)
+ * @param ipEcn ip ecn value (2 bits)
* @return match criterion
*/
public static Criterion matchIPEcn(byte ipEcn) {
@@ -770,16 +770,16 @@
/**
* Implementation of IP ECN (Explicit Congestion Notification) criterion
- * (3 bits).
+ * (2 bits).
*/
public static final class IPEcnCriterion implements Criterion {
- private static final byte MASK = 0x7;
- private final byte ipEcn; // IP ECN value: 3 bits
+ private static final byte MASK = 0x3;
+ private final byte ipEcn; // IP ECN value: 2 bits
/**
* Constructor.
*
- * @param ipEcn the IP ECN value to match (3 bits)
+ * @param ipEcn the IP ECN value to match (2 bits)
*/
public IPEcnCriterion(byte ipEcn) {
this.ipEcn = (byte) (ipEcn & MASK);
@@ -793,7 +793,7 @@
/**
* Gets the IP ECN value to match.
*
- * @return the IP ECN value to match (3 bits)
+ * @return the IP ECN value to match (2 bits)
*/
public byte ipEcn() {
return ipEcn;