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diff --git a/libtransport/src/protocols/rtc/rtc_consts.h b/libtransport/src/protocols/rtc/rtc_consts.h
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+++ b/libtransport/src/protocols/rtc/rtc_consts.h
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+/*
+ * Copyright (c) 2017-2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <protocols/rtc/rtc_packet.h>
+#include <stdint.h>
+
+namespace transport {
+
+namespace protocol {
+
+namespace rtc {
+
+// used in rtc
+// protocol consts
+const uint32_t ROUND_LEN = 200;
+// ms interval of time on which
+// we take decisions / measurements
+const double INTEREST_LIFETIME_REDUCTION_FACTOR = 0.8;
+// how big (in ms) should be the buffer at the producer.
+// increasing this number we increase the time that an
+// interest will wait for the data packet to be produced
+// at the producer socket
+const uint32_t PRODUCER_BUFFER_MS = 200;  // ms
+
+// interest scheduler
+const uint32_t MAX_INTERESTS_IN_BATCH = 5;
+const uint32_t WAIT_BETWEEN_INTEREST_BATCHES = 1000;  // usec
+
+// packet const
+const uint32_t HICN_HEADER_SIZE = 40 + 20;  //  IPv6 + TCP bytes
+const uint32_t RTC_INTEREST_LIFETIME = 1000;
+
+// probes sequence range
+const uint32_t MIN_PROBE_SEQ = 0xefffffff;
+const uint32_t MIN_RTT_PROBE_SEQ = MIN_PROBE_SEQ;
+const uint32_t MAX_RTT_PROBE_SEQ = 0xffffffff - 1;
+// RTT_PROBE_INTERVAL will be used during the section while
+// INIT_RTT_PROBE_INTERVAL is used at the beginning to
+// quickily estimate the RTT
+const uint32_t RTT_PROBE_INTERVAL = 200000;  // us
+const uint32_t INIT_RTT_PROBE_INTERVAL = 500; // us
+const uint32_t INIT_RTT_PROBES = 40; // number of probes to init RTT
+// if the produdcer is not yet started we need to probe multple times
+// to get an answer. we wait 100ms between each try
+const uint32_t INIT_RTT_PROBE_RESTART = 100; // ms
+// once we get the first probe we wait at most 60ms for the others
+const uint32_t INIT_RTT_PROBE_WAIT = 30; // ms
+// we reuires at least 5 probes to be recevied
+const uint32_t INIT_RTT_MIN_PROBES_TO_RECV = 5; //ms
+const uint32_t MAX_PENDING_PROBES = 10;
+
+
+// congestion
+const double MAX_QUEUING_DELAY = 100.0;  // ms
+
+// data from cache
+const double MAX_DATA_FROM_CACHE = 0.25;  // 25%
+
+// window const
+const uint32_t INITIAL_WIN = 5;            // pkts
+const uint32_t INITIAL_WIN_MAX = 1000000;  // pkts
+const uint32_t WIN_MIN = 5;                // pkts
+const double CATCH_UP_WIN_INCREMENT = 1.2;
+// used in rate control
+const double WIN_DECREASE_FACTOR = 0.5;
+const double WIN_INCREASE_FACTOR = 1.5;
+
+// round in congestion
+const double ROUNDS_BEFORE_TAKE_ACTION = 5;
+
+// used in state
+const uint8_t ROUNDS_IN_SYNC_BEFORE_SWITCH = 3;
+const double PRODUCTION_RATE_FRACTION = 0.8;
+
+const uint32_t INIT_PACKET_SIZE = 1200;
+
+const double MOVING_AVG_ALPHA = 0.8;
+
+const double MILLI_IN_A_SEC = 1000.0;
+const double MICRO_IN_A_SEC = 1000000.0;
+
+const double MAX_CACHED_PACKETS = 262144;  // 2^18
+                                           // about 50 sec of traffic at 50Mbps
+                                           // with 1200 bytes packets
+
+const uint32_t MAX_ROUND_WHIOUT_PACKETS =
+    (20 * MILLI_IN_A_SEC) / ROUND_LEN;  // 20 sec in rounds;
+
+// used in ldr
+const uint32_t RTC_MAX_RTX = 100;
+const uint32_t RTC_MAX_AGE = 60000;  // in ms
+const uint64_t MAX_TIMER_RTX = ~0;
+const uint32_t SENTINEL_TIMER_INTERVAL = 100;  // ms
+const uint32_t MAX_RTX_WITH_SENTINEL = 10;     // packets
+const double CATCH_UP_RTT_INCREMENT = 1.2;
+
+// used by producer
+const uint32_t PRODUCER_STATS_INTERVAL = 200;  // ms
+const uint32_t MIN_PRODUCTION_RATE = 10;       // pps
+                                               // min prod rate
+                                               // set running several test
+
+}  // namespace rtc
+
+}  // namespace protocol
+
+}  // namespace transport