diff --git a/Examples/Speedtest.py b/Examples/Speedtest.py
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+##########################################################
+# This RNS example demonstrates a simple speedtest       #
+# program to measure link throughput.                    #
+##########################################################
+
+import os
+import sys
+import time
+import argparse
+import RNS
+
+# Let's define an app name. We'll use this for all
+# destinations we create.
+APP_NAME = "example_utilities"
+
+##########################################################
+#### Server Part #########################################
+##########################################################
+
+latest_client_link = None
+first_packet_at = None
+last_packet_at = None
+received_data = 0
+rc = 0
+data_cap = 2*1024*1024
+printed = False
+
+# This initialisation is executed when the users chooses
+# to run as a server
+def server(configpath):
+    # We must first initialise Reticulum
+    reticulum = RNS.Reticulum(configpath)
+    
+    # Randomly create a new identity for our link example
+    server_identity = RNS.Identity()
+
+    # We create a destination that clients can connect to. We
+    # want clients to create links to this destination, so we
+    # need to create a "single" destination type.
+    server_destination = RNS.Destination(
+        server_identity,
+        RNS.Destination.IN,
+        RNS.Destination.SINGLE,
+        APP_NAME,
+        "speedtest"
+    )
+
+    # We configure a function that will get called every time
+    # a new client creates a link to this destination.
+    server_destination.set_link_established_callback(client_connected)
+
+    # Everything's ready!
+    # Let's Wait for client requests or user input
+    server_loop(server_destination)
+
+def server_loop(destination):
+    # Let the user know that everything is ready
+    RNS.log(
+        "Speedtest "+
+        RNS.prettyhexrep(destination.hash)+
+        " running, waiting for a connection."
+    )
+
+    RNS.log("Hit enter to manually send an announce (Ctrl-C to quit)")
+
+    # We enter a loop that runs until the users exits.
+    # If the user hits enter, we will announce our server
+    # destination on the network, which will let clients
+    # know how to create messages directed towards it.
+    while True:
+        entered = input()
+        destination.announce()
+        RNS.log("Sent announce from "+RNS.prettyhexrep(destination.hash))
+
+# When a client establishes a link to our server
+# destination, this function will be called with
+# a reference to the link.
+def client_connected(link):
+    global latest_client_link, first_packet_at, rc
+
+    RNS.log("Client connected")
+    first_packet_at = time.time()
+    rc = 0
+    link.set_link_closed_callback(client_disconnected)
+    link.set_packet_callback(server_packet_received)
+    latest_client_link = link
+
+def client_disconnected(link):
+    RNS.log("Client disconnected")
+
+
+# A convenience function for printing a human-
+# readable file size
+def size_str(num, suffix='B'):
+    units = ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']
+    last_unit = 'Yi'
+
+    if suffix == 'b':
+        num *= 8
+        units = ['','K','M','G','T','P','E','Z']
+        last_unit = 'Y'
+
+    for unit in units:
+        if abs(num) < 1024.0:
+            return "%3.2f %s%s" % (num, unit, suffix)
+        num /= 1024.0
+    return "%.2f %s%s" % (num, last_unit, suffix)
+
+
+def server_packet_received(message, packet):
+    global latest_client_link, first_packet_at, last_packet_at, received_data, rc, data_cap
+    
+    received_data += len(packet.data)
+    
+    rc += 1
+    if rc >= 50:
+        RNS.log(size_str(received_data))
+        rc = 0
+
+    if received_data > data_cap:
+        last_packet_at = time.time()
+        latest_client_link.teardown()
+        
+        # Print statistics
+        download_time = last_packet_at-first_packet_at
+        hours, rem = divmod(download_time, 3600)
+        minutes, seconds = divmod(rem, 60)
+        timestring = "{:0>2}:{:0>2}:{:05.2f}".format(int(hours),int(minutes),seconds)
+        print("")
+        print("")
+        print("--- Statistics -----")
+        print("\tTime taken       : "+timestring)
+        print("\tData transferred : "+size_str(received_data))
+        print("\tTransfer rate    : "+size_str(received_data/download_time, suffix='b')+"/s")
+
+        rc = 0
+        received_data = 0
+
+
+##########################################################
+#### Client Part #########################################
+##########################################################
+
+# A reference to the server link
+server_link = None
+
+# This initialisation is executed when the users chooses
+# to run as a client
+def client(destination_hexhash, configpath):
+    # We need a binary representation of the destination
+    # hash that was entered on the command line
+    try:
+        if len(destination_hexhash) != 20:
+            raise ValueError("Destination length is invalid, must be 20 hexadecimal characters (10 bytes)")
+        destination_hash = bytes.fromhex(destination_hexhash)
+    except:
+        RNS.log("Invalid destination entered. Check your input!\n")
+        exit()
+
+    # We must first initialise Reticulum
+    reticulum = RNS.Reticulum(configpath)
+
+    # Check if we know a path to the destination
+    if not RNS.Transport.has_path(destination_hash):
+        RNS.log("Destination is not yet known. Requesting path and waiting for announce to arrive...")
+        RNS.Transport.request_path(destination_hash)
+        while not RNS.Transport.has_path(destination_hash):
+            time.sleep(0.1)
+
+    # Recall the server identity
+    server_identity = RNS.Identity.recall(destination_hash)
+
+    # Inform the user that we'll begin connecting
+    RNS.log("Establishing link with server...")
+
+    # When the server identity is known, we set
+    # up a destination
+    server_destination = RNS.Destination(
+        server_identity,
+        RNS.Destination.OUT,
+        RNS.Destination.SINGLE,
+        APP_NAME,
+        "speedtest"
+    )
+
+    # And create a link
+    link = RNS.Link(server_destination)
+
+    # We'll also set up functions to inform the
+    # user when the link is established or closed
+    link.set_link_established_callback(link_established)
+    link.set_link_closed_callback(link_closed)
+
+    # Everything is set up, so let's enter a loop
+    # for the user to interact with the example
+    client_loop()
+
+def client_loop():
+    global server_link
+
+    # Wait for the link to become active
+    while not server_link:
+        time.sleep(0.1)
+
+    should_quit = False
+    while not should_quit:
+        try:
+            text = input()
+
+            # Check if we should quit the example
+            if text == "quit" or text == "q" or text == "exit":
+                should_quit = True
+                server_link.teardown()
+
+        except Exception as e:
+            raise e
+
+# This function is called when a link
+# has been established with the server
+def link_established(link):
+    # We store a reference to the link
+    # instance for later use
+    global server_link, data_cap, printed
+    server_link = link
+    data_sent = 0
+
+    # Inform the user that the server is
+    # connected
+    RNS.log("Link established with server,sending...")
+    rd = os.urandom(RNS.Link.MDU)
+    started = time.time()
+    while link.status == RNS.Link.ACTIVE and data_sent < data_cap*1.25:
+        RNS.Packet(server_link, rd, create_receipt=False).send()
+        data_sent += len(rd)
+
+        if data_sent > data_cap and not printed:
+            printed = True
+            ended = time.time()
+            # Print statistics
+            download_time = ended-started
+            hours, rem = divmod(download_time, 3600)
+            minutes, seconds = divmod(rem, 60)
+            timestring = "{:0>2}:{:0>2}:{:05.2f}".format(int(hours),int(minutes),seconds)
+            print("")
+            print("")
+            print("--- Statistics -----")
+            print("\tTime taken       : "+timestring)
+            print("\tData transferred : "+size_str(data_sent))
+            print("\tTransfer rate    : "+size_str(data_sent/download_time, suffix='b')+"/s")
+
+
+# When a link is closed, we'll inform the
+# user, and exit the program
+def link_closed(link):
+    if link.teardown_reason == RNS.Link.TIMEOUT:
+        RNS.log("The link timed out, exiting now")
+    elif link.teardown_reason == RNS.Link.DESTINATION_CLOSED:
+        RNS.log("The link was closed by the server, exiting now")
+    else:
+        RNS.log("Link closed, exiting now")
+    
+    RNS.Reticulum.exit_handler()
+
+    time.sleep(1.5)
+    os._exit(0)
+
+def client_packet_received(message, packet):
+    pass
+
+##########################################################
+#### Program Startup #####################################
+##########################################################
+
+# This part of the program runs at startup,
+# and parses input of from the user, and then
+# starts up the desired program mode.
+if __name__ == "__main__":
+    try:
+        parser = argparse.ArgumentParser(description="Speedtest example")
+
+        parser.add_argument(
+            "-s",
+            "--server",
+            action="store_true",
+            help="wait for incoming requests from clients"
+        )
+
+        parser.add_argument(
+            "--config",
+            action="store",
+            default=None,
+            help="path to alternative Reticulum config directory",
+            type=str
+        )
+
+        parser.add_argument(
+            "destination",
+            nargs="?",
+            default=None,
+            help="hexadecimal hash of the server destination",
+            type=str
+        )
+
+        args = parser.parse_args()
+
+        if args.config:
+            configarg = args.config
+        else:
+            configarg = None
+
+        if args.server:
+            server(configarg)
+        else:
+            if (args.destination == None):
+                print("")
+                parser.print_help()
+                print("")
+            else:
+                client(args.destination, configarg)
+
+    except KeyboardInterrupt:
+        print("")
+        exit()