--- /dev/null
+/*****************************************************************************
+# *
+# Copyright 2019 AT&T Intellectual Property *
+# Copyright 2019 Nokia *
+# *
+# 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. *
+# *
+******************************************************************************/
+
+#ifndef E2SIM_SCTP_HPP
+#define E2SIM_SCTP_HPP
+
+#include "e2sim_defs.h"
+
+const int SERVER_LISTEN_QUEUE_SIZE = 10;
+
+int sctp_start_server(const char *server_ip_str, const int server_port);
+
+int sctp_start_client(const char *server_ip_str, const int server_port);
+
+int sctp_accept_connection(const char *server_ip_str, const int server_fd);
+
+int sctp_send_data(int &socket_fd, sctp_buffer_t &data);
+
+int sctp_send_data_X2AP(int &socket_fd, sctp_buffer_t &data);
+
+int sctp_receive_data(int &socket_fd, sctp_buffer_t &data);
+
+#endif