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#!/usr/bin/perl
# odata_jump_parity.pl
# 6.3. Data Recovery by Negative Acknowledgment
use strict;
use PGM::Test;
BEGIN { require "test.conf.pl"; }
$| = 1;
my $mon = PGM::Test->new(tag => 'mon', host => $config{mon}{host}, cmd => $config{mon}{cmd});
my $sim = PGM::Test->new(tag => 'sim', host => $config{sim}{host}, cmd => $config{sim}{cmd});
my $app = PGM::Test->new(tag => 'app', host => $config{app}{host}, cmd => $config{app}{cmd});
$mon->connect;
$sim->connect;
$app->connect;
sub close_ssh {
$mon = $sim = $app = undef;
print "finished.\n";
}
$SIG{'INT'} = sub { print "interrupt caught.\n"; close_ssh(); };
$mon->say ("filter $config{app}{ip}");
print "mon: ready.\n";
$app->say ("create ao");
$app->say ("bind ao");
$app->say ("listen ao");
$sim->say ("create fake ao");
$sim->say ("bind ao");
print "sim: publish SPM txw_trail 32,769 txw_lead 32,768 at spm_sqn 3200, advertise on-demand parity, k=4.\n";
$sim->say ("net send spm ao 3200 32769 32768 on-demand 4");
# no NAKs should be generated.
print "sim: waiting 2 seconds for erroneous NAKs ...\n";
$sim->die_on_nak({ 'timeout' => 2 });
print "sim: no NAKs received.\n";
print "sim: publish ODATA sqn 32,769.\n";
$sim->say ("net send odata ao 32769 32769 ringo");
print "app: wait for data ...\n";
my $data = $app->wait_for_data;
print "app: data received [$data].\n";
# no NAKs should be generated.
print "sim: waiting 2 seconds for erroneous NAKs ...\n";
$sim->die_on_nak({ 'timeout' => 2 });
print "sim: no NAKs received.\n";
# force window into next transmission group
print "sim: publish ODATA sqn 32,771.\n";
$sim->say ("net send odata ao 32771 32769 ichigo");
print "sim: publish ODATA sqn 32,772.\n";
$sim->say ("net send odata ao 32772 32769 momo");
print "sim: publish ODATA sqn 32,773.\n";
$sim->say ("net send odata ao 32773 32769 yakitori");
print "sim: publish ODATA sqn 32,774.\n";
$sim->say ("net send odata ao 32774 32769 sasami");
print "sim: publish ODATA sqn 32,775.\n";
$sim->say ("net send odata ao 32775 32769 tebasaki");
print "sim: waiting for valid NAK.\n";
my $nak = $sim->wait_for_nak;
print "sim: NAK received.\n";
die "Selective NAK received, parityPacket=false\n" unless $nak->{PGM}->{options}->{parityPacket};
print "Parity NAK received.\n";
print "test completed successfully.\n";
$mon->disconnect (1);
$sim->disconnect;
$app->disconnect;
close_ssh;
# eof
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