#!/usr/bin/perl

# This program is used to stress test the LANforge system, and may be used as
# an example for others who wish to automate LANforge tests.

# This script sets up connections of types:
#   lf, lf_udp, lf_tcp, custom_ether, custom_udp, and custom_tcp
# across 1 real port and manny macvlan ports on 2 machines.
# It then continously starts and stops the connections.

# Un-buffer output
$| = 1;

use strict;

use Net::Telnet ();
use LANforge::Port;
use LANforge::Utils;

#my $lfmgr_host = "localhost";
my $lfmgr_host = "localhost";
my $lfmgr_port = 4001;

my $shelf = 1;

# set $STARTSTOP_LOOP = 1; to start and stop ALL endpoints after script finishes
# populating the database.
my $STARTSTOP_LOOP = 0;

# This sets up connections between 2 LANforge machines
#my $lf1 = 4; my $lf2 = 15; my @lf1_ports = (0); my @lf2_ports = (0);

# This sets up connections between 2 ports of a single machine;
# $lf1 and $lf2 are the minor number of the EIDs of the resource/card.
#my $lf1 = 4; my $lf2 = 4; my @lf1_ports = ("eth1"); my @lf2_ports = ("eth2");
my $lf1 = 16; my $lf2 = 16; my @lf1_ports = ("eth2"); my @lf2_ports = ("eth3");

my @mac3 = (1, 2);


my $ignore_phys_ports = 1; # If 1, just muck with mac-vlans instead.
my $ip_base = "172.1";
my $ip_lsb = 2;
my $ip_c = 2;
my $msk = "255.255.0.0";

# The number of macvlans is dependant on the number for port used.
# e.g. if two ports used, eth2 and eth3 then the number of vlans 
# for 120 virtual hosts would be 60 since they will be evenly distributed
# between eth2 and eth3.
my $num_macvlans = 60;
my $codec = "g729a";  # Other options:   G711U, SPEEX, g726-16, g726-24, g726-32, g726-40
#my $codec = "G711U";  # Other options:   G711U, SPEEX, g726-16, g726-24, g726-32, g726-40

my $mn_icg = 3; # minimum intercall gap
my $mx_icg = 3; # maximum intercall gap
my $min_call_duration = 0;  # set to zero for 'file'
my $max_call_duration = 0; # Set to zero for 'file'

my $no_send_rtp = 0; # Set to zero to send RTP traffic, 1 to suppress RTP
my $use_VAD = 0; # Set to zero to not use VAD, 1 to use VAD
my $vad_timer = 500; # how much silence (ms) before we start VAD (Silence Suppression)
my $vad_fs = 3000; # how often (ms) to force an rtp pkt send even if we are in VAD
my $use_PESQ = 0; # Set to 1 for PESQ, zero for not PESQ
my $pesq_server = "127.0.0.1";
my $pesq_server_port = 3998;
my $vproto = "SIP";
#my $vproto = "H323";

# If zero, will have one of EACH of the cx types on each port.
#my $one_cx_per_port = 1;
my $one_cx_per_port = 0;

#my @cx_types =     ("", "lf_udp", "lf_tcp", "custom_udp", "custom_tcp", "l4");
#my @min_pkt_szs =  (64,   1,        1,         1,            1,            0);
#my @max_pkt_szs =  (1514, 12000,    13000,     2048,         2048,         0);

# Layer-4 only
#my @cx_types =     ("l4", "l4");
#my @min_pkt_szs =  (0, 0);
#my @max_pkt_szs =  (0, 0);

# VOIP only
#my @cx_types =     ("voip", "voip", "voip", "voip");
#my @min_pkt_szs =  (0, 0, 0, 0);
#my @max_pkt_szs =  (0, 0, 0, 0);
my @cx_types =     ("voip");
my @min_pkt_szs =  (0);
my @max_pkt_szs =  (0);

my $peer_to_peer_voip = 1; # Don't register with SIP proxy, but just call peer to peer.

my @src_sound_files = ("media/female_voice_8khz.wav");

# URL will be acted on from machine $lf1
#my $l4_url = "http://172.1.5.75";
my $l4_url = "http://172.1.2.3";  # not used in lf_voip.pl script but makes it work

my $min_rate = 64000;  # not used in lf_voip.pl script but makes it work
my $max_rate = 512000;  # not used in lf_voip.pl script but makes it work

my $test_mgr = "voip_tm";

my $loop_max = 100;
my $start_stop_iterations = 100;
my $run_for_time = 1200;  # Run for XX seconds..then will be stopped again
my $stop_for_time = 5;  # Run for XX seconds..then will be stopped again
my $report_timer = 5000; # 8 seconds


########################################################################
# Nothing to configure below here, most likely.
########################################################################

my @endpoint_names = (); #will be added to as they are created
my @cx_names = ();

# Open connection to the LANforge server.

my $t = new Net::Telnet(Prompt => '/default\@btbits\>\>/');


$t->open(Host    => $lfmgr_host,
	 Port    => $lfmgr_port,
	 Timeout => 45);

$t->waitfor("/btbits\>\>/");

# Configure our utils.
my $utils = new LANforge::Utils();
$utils->telnet($t);         # Set our telnet object.
$utils->cli_send_silent(0); # Do show input to CLI
$utils->cli_rcv_silent(0);  # Repress output from CLI ??


my $dt = "";

my $loop = 0;
for ($loop = 0; $loop<$loop_max; $loop++) {
  $dt = `date`;
  chomp($dt);
  print "\n\n*****  Starting loop: $loop at: $dt  *****\n\n";

  initToDefaults();
  #exit(0);

  # Now, add back the test manager we will be using
  doCmd("add_tm $test_mgr");
  doCmd("tm_register $test_mgr default");  #Add default user
  doCmd("tm_register $test_mgr default_gui");  #Add default GUI user

  addMacVlans();

  # Add some IP addresses to the ports
  initIpAddresses();

  # Add our endpoints
  addCrossConnects();

  if ($STARTSTOP_LOOP) {
    my $rl = 0;
    for ($rl = 0; $rl<$start_stop_iterations; $rl++) {
      if (($rl % 2) == 0) {
        doCmd("set_cx_state $test_mgr all RUNNING");
      }
      else {
        # Do one at a time
        my $q = 0;
        for ($q = 0; $q<@cx_names; $q++) {
	  my $cmd = "set_cx_state $test_mgr " . $cx_names[$q] . " RUNNING";
	  doCmd($cmd);
        }
      }

      print "Done starting endpoints...sleeping $run_for_time seconds.\n";
      sleep($run_for_time);

      # Now, stop them...

      if (($rl % 2) == 0) {
        doCmd("set_cx_state $test_mgr all STOPPED");
      }
      else {
        # Do one at a time
        my $q = 0;
        for ($q = 0; $q<@cx_names; $q++) {
  	  my $cmd = "set_cx_state $test_mgr " . $cx_names[$q] . " STOPPED";
	  doCmd($cmd);
        }
      }
      sleep($stop_for_time);
    }# For some amount of start_stop iterations...
  }# STARTSTOP_LOOP
  else {
    $dt = `date`;
    chomp($dt);
    print "Done at: $dt\n\n";
    exit(0);
  }# STARTSTOP_LOOP
}# for some amount of loop iterations

$dt = `date`;
chomp($dt);
print "Done at: $dt\n\n";
exit(0);


sub initToDefaults {
  # Clean up database if stuff exists

  doCmd("rm_cx $test_mgr all");
  doCmd("rm_endp YES_ALL");
  doCmd("rm_test_mgr $test_mgr");

  initPortsToDefault();
}#initToDefaults


sub addMacVlans {
  my $i;
  my $q;

  my $v;
  my $lsb = 10;
  my $lsb2 = 10;

  my $throttle = 25;
  my $since_throttle = 0;
  for ($q = 0; $q<@lf1_ports; $q++) {
    my $pnum1 = $lf1_ports[$q];
    my $pnum2 = $lf2_ports[$q];
    for ($i = 0; $i<$num_macvlans; $i++) {

      $lsb++;
      if ($lsb > 99) {
	$lsb2++;
	$lsb = 2;
      }

      my $s2 = $shelf+10;
      my $c2 = $lf1+10;
      my $p2 = $mac3[0] + 10;
      my $mc = "00:$s2:$c2:$p2:$lsb2:$lsb";
      doCmd("add_mvlan $shelf $lf1 $pnum1 $mc");

      if ($lf2 ne "") {
	$c2 = $lf2+10;
	$p2 = $mac3[1] + 10;
	$mc = "00:$s2:$c2:$p2:$lsb2:$lsb";
	doCmd("add_mvlan $shelf $lf2 $pnum2 $mc");

	# Throttle ourself so we don't over-run the poor LANforge system.
	
	if ($since_throttle++ > $throttle) {
	  my $p1 = new LANforge::Port();
	  $utils->updatePort($p1, $shelf, $lf1, $pnum1);

	  my $p1 = new LANforge::Port();
	  $utils->updatePort($p1, $shelf, $lf2, $pnum2);
	  $since_throttle = 0;
	}
      }
    }
  }

  doCmd("probe_ports");

  # Wait untill we discover all the ports...

  for ($q = 0; $q<@lf1_ports; $q++) {
    my $p1 = new LANforge::Port();
    $utils->updatePort($p1, $shelf, $lf1, $lf1_ports[$q]);
    my $pname = $p1->{dev};

    my $p2 = new LANforge::Port();
    my $pname2;
    if ($lf2 ne "") {
      $utils->updatePort($p2, $shelf, $lf2, $lf2_ports[$q]);
      $pname2 = $p2->{dev};
    }

    for ($i = 0; $i<$num_macvlans; $i++) {
      while (1) {
	$utils->updatePort($p1, $shelf, $lf1, "$pname\#$i");
	if ($lf2 ne "") {
	  $utils->updatePort($p2, $shelf, $lf2, "$pname2\#$i");
	}
	if ($p1->isPhantom() || (($lf2 ne "") && $p2->isPhantom())) {
	  sleep(1);
	}
	else {
	  last;
	}
      }
    }
  }


}#addMacVlans


# Wait untill the system can update a port..
sub throttleCard {
  my $s = shift;
  my $c = shift;
  my $p1 = new LANforge::Port();
  $utils->updatePort($p1, $s, $c, 0);	
}#throttle

sub initPortsToDefault {
  clearMacVlanPorts($shelf, $lf1);
  if ($lf2 ne "") {
    clearMacVlanPorts($shelf, $lf2);
  }

  throttleCard($shelf, $lf1);

  if ($lf2 ne "") {
    throttleCard($shelf, $lf2);
  }

  # Set all ports we are messing with to known state.
  if (!$ignore_phys_ports) {
    my $i = 0;
    for ($i = 0; $i<@lf1_ports; $i++) {
      my $tmp = $lf1_ports[$i];
      my $tmp2 = $lf2_ports[$i];
      doCmd("set_port $shelf $lf1 $tmp 0.0.0.0 0.0.0.0 0.0.0.0 NA NA NA");
      if ($lf2 ne "") {
	doCmd("set_port $shelf $lf2 $tmp2 0.0.0.0 0.0.0.0 0.0.0.0 NA NA NA");
      }
    }
  }
}

sub clearMacVlanPorts {
  my $s = shift;
  my $c = shift;

  my $i;
  my $found_one = 1;
  my @ports = ();
  while ($found_one) {
    $found_one = 0;
    doCmd("probe_ports");
    # Clear out any existing MAC-VLAN ports.
    $utils->error("");
    @ports = $utils->getPortListing($s, $c);
    my $mx = @ports;
    print "Found $mx ports for resource: $shelf.$lf1\n";

    if (($mx == 0) || ($utils->error() =~ /Timed out/g)) {
      # System is too backlogged to answer, wait a bit
      print " Will try listing ports again in a few seconds...system is backlogged now!\n";
      sleep(5);
      $found_one = 1;
      next;
    }

    my $throttle = 0;
    my $wait_for_phantom = 0;
    for ($i = 0; $i<$mx; $i++) {
      if ($ports[$i]->isMacVlan()) {
	if ($ports[$i]->isPhantom()) {
	  # Wait a bit..hopefully it will go away.
	  if ($wait_for_phantom++ < 20) {
	    print "Sleeping a bit, found a phantom port.";
	    sleep(5);
	    doCmd("probe_ports");
	    $found_one = 1;
	  }
	}
	else {
	  doCmd($ports[$i]->getDeleteCmd());
	  $found_one = 1;
	}
      }
    }
  }
}


sub initIpAddresses {
  # Set all ports we are messing with to known state.
  my $i = 0;
  for ($i = 0; $i<@lf1_ports; $i++) {

    if ($ip_lsb > 250) {
      $ip_c++;
      $ip_lsb = 2;
    }

    my $tmp = $lf1_ports[$i];
    my $tmp2 = $lf2_ports[$i];
    my $cmd = "";
    if (!$ignore_phys_ports) {
      $cmd = "set_port $shelf $lf1 $tmp $ip_base.$ip_c.$ip_lsb $msk " .
	"$ip_base.1.1 NA NA NA";
      doCmd($cmd);
      $ip_lsb++;
      
      if ($lf2 ne "") {
	$cmd = "set_port $shelf $lf2 $tmp2 $ip_base.$ip_c.$ip_lsb $msk " .
	  "$ip_base.1.1 NA NA NA";
	doCmd($cmd);
	$ip_lsb++;
      }
    }

    my $p1 = new LANforge::Port();
    $utils->updatePort($p1, $shelf, $lf1, $tmp);
    my $pname = $p1->{dev};

    my $q;
    my $throttle = 25;
    my $since_throttle = 0;
    for ($q = 0; $q<$num_macvlans; $q++) {
      $cmd = "set_port $shelf $lf1 $pname\#$q $ip_base.$ip_c.$ip_lsb $msk " .
	     "$ip_base.1.1 NA NA NA NA 400";
      doCmd($cmd);
      $ip_lsb++;

      if ($ip_lsb > 250) {
	$ip_c++;
	$ip_lsb = 2;
      }

      if ($since_throttle++ > $throttle) {
	my $p1 = new LANforge::Port();
	$utils->updatePort($p1, $shelf, $lf1, "$pname\#$q");	
	$since_throttle = 0;
      }

    }

    $ip_lsb++;

    if ($lf2 ne "") {
      $p1 = new LANforge::Port();
      $utils->updatePort($p1, $shelf, $lf2, $tmp2);
      $pname = $p1->{dev};

      for ($q = 0; $q<$num_macvlans; $q++) {
	$cmd = "set_port $shelf $lf2 $pname\#$q $ip_base.$ip_c.$ip_lsb $msk " .
	  "$ip_base.1.1 NA NA NA NA 400";
	doCmd($cmd);
	$ip_lsb++;
	
	if ($ip_lsb > 250) {
	  $ip_c++;
	  $ip_lsb = 2;
	}
	
	if ($since_throttle++ > $throttle) {
	  my $p1 = new LANforge::Port();
	  $utils->updatePort($p1, $shelf, $lf2, "$pname\#$q");	
	  $since_throttle = 0;
	}
      }
    }# If we have an LF-2 defined.
  }
}

sub addCrossConnects {
  my $ep = 0;
  my $cx = 0;
  my $i = 0;

  my $voip_phone = 3000; # Start here and count on up as needed.
  my $rtp_port = 10000;  # Starting RTP port.
  my $sound_file_idx = 0;

  my @all_ports1 = @lf1_ports;
  my $j;
  my $pname;
  for ($j = 0; $j<@lf1_ports; $j++) {
    my $p1 = new LANforge::Port();
    $utils->updatePort($p1, $shelf, $lf1, $lf1_ports[$j]);
    $pname = $p1->{dev};

    my $q;
    for ($q = 0; $q<$num_macvlans; $q++) {
      @all_ports1 = (@all_ports1, "$pname\#$q");
    }
  }

  my @all_ports2 = @lf2_ports;
  if ($lf2 ne "") {
    for ($j = 0; $j<@lf2_ports; $j++) {
      my $p1 = new LANforge::Port();
      $utils->updatePort($p1, $shelf, $lf2, $lf2_ports[$j]);
      $pname = $p1->{dev};

      my $q;
      for ($q = 0; $q<$num_macvlans; $q++) {
	@all_ports2 = (@all_ports2, "$pname\#$q");
      }
    }
  }

  print "About to start endpoints, all_ports1:\n" . join(" ", @all_ports1) .
        "\nall_ports2: " . join(" ", @all_ports2) . "\n\n";

  if ($one_cx_per_port) {
    my $j = 0;
    my $cxcnt = 0;
    for ($j ; $j<@all_ports1; $j++) {
      my $i = $cxcnt % @cx_types;
      $cxcnt++;

      my $cxt = $cx_types[$i];
      if ($cxt eq "l4") {
	# Create layer-4 endpoint
	
	my $ep1 = "l4e-${ep}-TX";
	$ep++;
	my $ep2 = "D_l4e-${ep}-TX";
	$ep++;
	
	@endpoint_names = (@endpoint_names, $ep1, $ep2);

	# Add the dummy endpoint
	my $cmd = "add_l4_endp $ep2 $shelf $lf1 " . $all_ports1[$j] . " l4_generic  0 0 0 ' ' ' '";
	doCmd($cmd);
	$cmd = "set_endp_flag $ep2 unmanaged 1";
	doCmd($cmd);

	$cmd = "add_l4_endp $ep1 $shelf $lf1 " . $all_ports1[$j] . " l4_generic 0 10000 100 '" .
	  "dl $l4_url /tmp/$ep1' ' '";
	doCmd($cmd);

	# Now, add the cross-connects
	my $cx_name = "l4-cx-${cx}";
	$cmd = "add_cx $cx_name $test_mgr $ep1 $ep2";
	doCmd($cmd);
	doCmd("set_cx_report_timer $test_mgr $cx_name $report_timer");
	
	$cx++;
	
	@cx_names = (@cx_names, $cx_name);
      }
      elsif ($cxt eq "voip") {
	# Create VOIP endpoint
	
	my $ep1 = "rtpe-${ep}-TX";
	$ep++;
	my $ep2 = "rtpe-${ep}-RX";
	$ep++;
	
	@endpoint_names = (@endpoint_names, $ep1, $ep2);

	my $cmd = "add_voip_endp $ep2 $shelf $lf2 " . $all_ports2[$j] .
	          " $voip_phone $rtp_port AUTO " .
		  $src_sound_files[$sound_file_idx % @src_sound_files] .
                  " " . $src_sound_files[$sound_file_idx % @src_sound_files] .
		  ".$ep2 $vad_timer $vad_fs";
	doCmd($cmd);

	$cmd = "set_voip_info $ep2 NA $mn_icg $mx_icg NA $codec $vproto NA NA $min_call_duration $max_call_duration /dev/null 20000 NA $pesq_server $pesq_server_port NA";
	doCmd($cmd);

	$cmd = "set_endp_flag $ep2 SavePCM 0";
	doCmd($cmd);
	if ($peer_to_peer_voip) {
	  $cmd = "set_endp_flag $ep2 DoNotRegister 1";
	  doCmd($cmd);
	  $cmd = "set_endp_flag $ep2 BindSIP 1";
	  doCmd($cmd);
	}
	if ($no_send_rtp) {
	  $cmd = "set_endp_flag $ep2 nosendrtp 1";
          doCmd($cmd);
        }

	if ($use_VAD) {
	  $cmd = "set_endp_flag $ep2 VAD 1";
          doCmd($cmd);
        }

	if ($use_PESQ) {
	  $cmd = "set_endp_flag $ep2 pesq 1";
          doCmd($cmd);
        }

	$voip_phone++;
	$rtp_port += 2;
	$sound_file_idx++;

	doCmd($cmd);

	$cmd = "add_voip_endp $ep1 $shelf $lf1 " . $all_ports1[$j] .
	       " $voip_phone $rtp_port AUTO " .
	       $src_sound_files[$sound_file_idx % @src_sound_files] .
	       " " . $src_sound_files[$sound_file_idx % @src_sound_files] .
	       ".$ep1 $vad_timer $vad_fs";
	doCmd($cmd);

	$cmd = "set_voip_info $ep1 NA $mn_icg $mx_icg NA $codec $vproto NA NA $min_call_duration $max_call_duration /dev/null 20000 NA $pesq_server $pesq_server_port NA";
	doCmd($cmd);

	$cmd = "set_endp_flag $ep1 SavePCM 0";
	doCmd($cmd);

	if ($peer_to_peer_voip) {
	  $cmd = "set_endp_flag $ep1 DoNotRegister 1";
	  doCmd($cmd);
	  $cmd = "set_endp_flag $ep1 BindSIP 1";
	  doCmd($cmd);
	}
        if ($no_send_rtp) {
          $cmd = "set_endp_flag $ep1 nosendrtp 1";
          doCmd($cmd);
        }
	if ($use_VAD) {
	  $cmd = "set_endp_flag $ep1 VAD 1";
          doCmd($cmd);
        }

	if ($use_PESQ) {
	  $cmd = "set_endp_flag $ep1 pesq 1";
          doCmd($cmd);
        }

	$voip_phone++;
	$rtp_port += 2;
	$sound_file_idx++;

	# Now, add the cross-connects
	my $cx_name = "rtp-cx-${cx}";
	$cmd = "add_cx $cx_name $test_mgr $ep1 $ep2";
	doCmd($cmd);
	doCmd("set_cx_report_timer $test_mgr $cx_name $report_timer");
	
	$cx++;
	
	@cx_names = (@cx_names, $cx_name);
      }
      else {
	my $burst = "NO";
	if ($min_rate != $max_rate) {
	  $burst = "YES";
	}
	my $szrnd = "NO";
	if ($min_pkt_szs[$i] != $max_pkt_szs[$i]) {
	  $szrnd = "YES";
	}
	
	my $pattern = "increasing";
	if ($cx_types[$i] =~ /custom/) {
	  $pattern = "custom";
	}
	
	my $ep1 = "l3e-${ep}-TX";
	$ep++;
	my $ep2 = "l3e-${ep}-RX";
	$ep++;
	
	@endpoint_names = (@endpoint_names, $ep1, $ep2);
	
	my $cmd = "add_endp $ep1 $shelf $lf1 " . $all_ports1[$j] . " " . @cx_types[$i] .
	    " -1 $burst $min_rate $max_rate $szrnd " . $min_pkt_szs[$i] . " " . $max_pkt_szs[$i] .
	    " $pattern NO";
	doCmd($cmd);


	if ($lf2 == "") {
	  die("Must lave lf2 defined if using non-l4 endpoints.");
	}
	
	$cmd =    "add_endp $ep2 $shelf $lf2 " . $all_ports2[$j] . " " . @cx_types[$i] .
	    " -1 $burst $min_rate $max_rate $szrnd " . $min_pkt_szs[$i] . " " .
	    $max_pkt_szs[$i] . " $pattern NO";
	doCmd($cmd);
	
	# Now, add the cross-connects
	my $cx_name = "l3-cx-${cx}";
	$cmd = "add_cx $cx_name $test_mgr $ep1 $ep2";
	doCmd($cmd);
	doCmd("set_cx_report_timer $test_mgr $cx_name $report_timer");
	
	$cx++;

	@cx_names = (@cx_names, $cx_name);
      }
    }#for all ports
  }#one_cx_per_port
  else {
    my $j = 0;
    for ($j ; $j<@all_ports1; $j++) {
      for ($i = 0; $i<@cx_types; $i++) {
	my $cxt = $cx_types[$i];

	if ($cxt eq "l4") {
	  # Create layer-4 endpoint
	
	  my $ep1 = "l4e-${ep}-TX";
	  $ep++;
	  my $ep2 = "D_l4e-${ep}-TX";
	  $ep++;
	
	  @endpoint_names = (@endpoint_names, $ep1, $ep2);
	
	  # Add the dummy endpoint
	  my $cmd = "add_l4_endp $ep2 $shelf $lf1 " . $all_ports1[$j] . " l4_generic  0 0 0 ' ' ' '";
	  doCmd($cmd);
	  $cmd = "set_endp_flag $ep2 unmanaged 1";
	  doCmd($cmd);
	
	  $cmd = "add_l4_endp $ep1 $shelf $lf1 " . $all_ports1[$j] . " l4_generic 0 10000 100 '" .
	       "dl $l4_url /tmp/$ep1' ' '";
	  doCmd($cmd);

	  # Now, add the cross-connects
	  my $cx_name = "l4-cx-${cx}";
	  $cmd = "add_cx $cx_name $test_mgr $ep1 $ep2";
	  doCmd($cmd);
	  doCmd("set_cx_report_timer $test_mgr $cx_name $report_timer");
	
	  $cx++;
	
	  @cx_names = (@cx_names, $cx_name);
	}
	elsif ($cxt eq "voip") {
	  # Create VOIP endpoint
	
	  my $ep1 = "RTPE-${ep}-TX";
	  $ep++;
	  my $ep2 = "RTPE-${ep}-RX";
	  $ep++;
	
	  @endpoint_names = (@endpoint_names, $ep1, $ep2);

	  my $cmd = "add_voip_endp $ep2 $shelf $lf2 " . $all_ports2[$j] .
	            " $voip_phone $rtp_port AUTO " .
		    $src_sound_files[$sound_file_idx % @src_sound_files] .
                    " " . $src_sound_files[$sound_file_idx % @src_sound_files] .
		    ".$ep2 $vad_timer $vad_fs";
	  doCmd($cmd);
	  $voip_phone++;
	  $rtp_port += 2;
	  $sound_file_idx++;

	  $cmd = "set_voip_info $ep2 NA $mn_icg $mx_icg NA $codec $vproto NA NA $min_call_duration $max_call_duration /dev/null 20000 NA $pesq_server $pesq_server_port NA";
	  doCmd($cmd);

	  $cmd = "set_endp_flag $ep2 SavePCM 0";
	  doCmd($cmd);

	  if ($peer_to_peer_voip) {
	    $cmd = "set_endp_flag $ep2 DoNotRegister 1";
	    doCmd($cmd);
	    $cmd = "set_endp_flag $ep2 BindSIP 1";
	    doCmd($cmd);
	  }

          if ($no_send_rtp) {
            $cmd = "set_endp_flag $ep2 nosendrtp 1";
            doCmd($cmd);
          }

	  if ($use_VAD) {
	    $cmd = "set_endp_flag $ep2 VAD 1";
	    doCmd($cmd);
	  }
	
	  if ($use_PESQ) {
	    $cmd = "set_endp_flag $ep2 pesq 1";
	    doCmd($cmd);
	  }

	  my $cmd = "add_voip_endp $ep1 $shelf $lf1 " . $all_ports1[$j] .
	            " $voip_phone $rtp_port AUTO " .
		    $src_sound_files[$sound_file_idx % @src_sound_files] .
                    " " . $src_sound_files[$sound_file_idx % @src_sound_files] .
		    ".$ep1";
	  doCmd($cmd);

	  $cmd = "set_voip_info $ep1 NA $mn_icg $mx_icg NA $codec $vproto NA NA $min_call_duration $max_call_duration /dev/null 20000 NA $pesq_server $pesq_server_port NA";
	  doCmd($cmd);

	  $cmd = "set_endp_flag $ep1 SavePCM 0";
	  doCmd($cmd);

	  if ($peer_to_peer_voip) {
	    $cmd = "set_endp_flag $ep1 DoNotRegister 1";
	    doCmd($cmd);
	    $cmd = "set_endp_flag $ep1 BindSIP 1";
	    doCmd($cmd);
	  }
          if ($no_send_rtp) {
            $cmd = "set_endp_flag $ep1 nosendrtp 1";
            doCmd($cmd);
          }

	  if ($use_VAD) {
	    $cmd = "set_endp_flag $ep1 VAD 1";
	    doCmd($cmd);
	  }
	
	  if ($use_PESQ) {
	    $cmd = "set_endp_flag $ep1 pesq 1";
	    doCmd($cmd);
	  }

	  $voip_phone++;
	  $rtp_port += 2;
	  $sound_file_idx++;

	  # Now, add the cross-connects
	  my $cx_name = "rtp-cx-${cx}";
	  $cmd = "add_cx $cx_name $test_mgr $ep1 $ep2";
	  doCmd($cmd);
	  doCmd("set_cx_report_timer $test_mgr $cx_name $report_timer");
	
	  $cx++;
	
	  @cx_names = (@cx_names, $cx_name);
	}
	else {
	  my $burst = "NO";
	  if ($min_rate != $max_rate) {
	    $burst = "YES";
	  }
	  my $szrnd = "NO";
	  if ($min_pkt_szs[$i] != $max_pkt_szs[$i]) {
	    $szrnd = "YES";
	  }
	
	  my $pattern = "increasing";
	  if ($cx_types[$i] =~ /custom/) {
	    $pattern = "custom";
	  }
	
	  my $ep1 = "l3e-${ep}-TX";
	  $ep++;
	  my $ep2 = "l3e-${ep}-RX";
	  $ep++;
	
	  @endpoint_names = (@endpoint_names, $ep1, $ep2);
	
	  my $cmd = "add_endp $ep1 $shelf $lf1 " . $all_ports1[$j] . " " . @cx_types[$i] .
	    " -1 $burst $min_rate $max_rate $szrnd " . $min_pkt_szs[$i] . " " . $max_pkt_szs[$i] .
	      " $pattern NO";
	  doCmd($cmd);

	  if ($lf2 == "") {
	    die("Must lave lf2 defined if using non-l4 endpoints.");
	  }
	
	  $cmd =    "add_endp $ep2 $shelf $lf2 " . $all_ports2[$j] . " " . @cx_types[$i] .
	    " -1 $burst $min_rate $max_rate $szrnd " . $min_pkt_szs[$i] . " " .
	      $max_pkt_szs[$i] . " $pattern NO";
	  doCmd($cmd);
	
	  # Now, add the cross-connects
	  my $cx_name = "l3-cx-${cx}";
	  $cmd = "add_cx $cx_name $test_mgr $ep1 $ep2";
	  doCmd($cmd);
	  doCmd("set_cx_report_timer $test_mgr $cx_name $report_timer");
	
	  $cx++;
	
	  @cx_names = (@cx_names, $cx_name);
	}
      }#for cx types
    }#for each port
  }# each cx per port

}#addCrossConnects


sub doCmd {
  my $cmd = shift;

  print ">>> $cmd\n";

  $t->print($cmd);

  my @rslt = $t->waitfor('/ \>\>RSLT:(.*)/');
  print "**************\n @rslt ................\n\n";
  #sleep(1);
}