diff --git a/include/sctrltp/sctrltp_defines.h b/include/sctrltp/sctrltp_defines.h
index bf3a950..659ee4c 100644
--- a/include/sctrltp/sctrltp_defines.h
+++ b/include/sctrltp/sctrltp_defines.h
@@ -7,8 +7,8 @@
 #define TYPLEN_SIZE          4 /* in bytes */

 /*Constraints of hardware*/
-#define MAX_WINSIZ         128 /* Can be specified in the range of 1 till (MAX_NRFRAMES-1)/2 (compile-time check exists) */
-#define MAX_NRFRAMES       256 /* Maximum number of frames in buffer equals maximum SEQ number + 1 */
+#define MAX_WINSIZ       16384 /* Can be specified in the range of 1 till (MAX_NRFRAMES-1)/2 (compile-time check exists) */
+#define MAX_NRFRAMES     65536 /* Maximum number of frames in buffer equals maximum SEQ number + 1 */

 #define WIRESPEED          125 /* in 10^6 bytes/sec (because we calculate in us) */