diff --git a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java
index 12c3c62..8f57e1b 100644
--- a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java
+++ b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java
@@ -207,7 +207,7 @@
                         routeDistinguisher = RouteDistinguisher.read(tempCb);
                     }
                     while (tempCb.readableBytes() > 0) {
-                        short totNlriLen = tempCb.getByte(tempCb.readerIndex());
+                        short totNlriLen = tempCb.getUnsignedByte(tempCb.readerIndex());
                         if (totNlriLen >= BgpFlowSpecNlri.FLOW_SPEC_LEN) {
                            if (tempCb.readableBytes() < 2) {
                                 Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR,
diff --git a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java
index ebeef61..cdd334c 100644
--- a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java
+++ b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java
@@ -161,7 +161,7 @@
                         routeDistinguisher = RouteDistinguisher.read(tempCb);
                     }
                     while (tempCb.readableBytes() > 0) {
-                        short totNlriLen = tempCb.getByte(tempCb.readerIndex());
+                        short totNlriLen = tempCb.getUnsignedByte(tempCb.readerIndex());
                         if (totNlriLen >= BgpFlowSpecNlri.FLOW_SPEC_LEN) {
                            if (tempCb.readableBytes() < 2) {
                                 Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR,