NAME

Net::Frame::Layer::LLC - Logical-Link Control layer object

SYNOPSIS

use Net::Frame::Layer::LLC qw(:consts);

# Build a layer
my $layer = Net::Frame::Layer::LLC->new(
   dsap    => NF_LLC_DSAP_SNAP,
   ig      => 1,
   ssap    => NF_LLC_SSAP_SNAP,
   cr      => 1,
   control => 0x03,
);
$layer->pack;

print 'RAW: '.$layer->dump."\n";

# Read a raw layer
my $layer = Net::Frame::Layer::LLC->new(raw => $raw);

print $layer->print."\n";
print 'PAYLOAD: '.unpack('H*', $layer->payload)."\n"
   if $layer->payload;

DESCRIPTION

This modules implements the encoding and decoding of the Logical-Link Control layer.

See also Net::Frame::Layer for other attributes and methods.

ATTRIBUTES

dsap - 7 bits

ig - 1 bit

ssap - 7 bits

cr - 1 bit

control - 8 bits

The following are inherited attributes. See Net::Frame::Layer for more information.

raw

payload

nextLayer

METHODS

new

new (hash)

Object constructor. You can pass attributes that will overwrite default ones. See SYNOPSIS for default values.

The following are inherited methods. Some of them may be overriden in this layer, and some others may not be meaningful in this layer. See Net::Frame::Layer for more information.

layer

computeLengths

computeChecksums

pack

unpack

encapsulate

getLength

getPayloadLength

print

dump

CONSTANTS

Load them: use Net::Frame::Layer::LLC qw(:consts);

NF_LLC_HDR_LEN

LLC header length.

NF_LLC_DSAP_SNAP

NF_LLC_DSAP_STP

Dsap attribute constants.

NF_LLC_SSAP_SNAP

NF_LLC_SSAP_STP

Ssap attribute constants.

SEE ALSO

Net::Frame::Layer

AUTHOR

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

Copyright (c) 2006-2007, Patrice <GomoR> Auffret

You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive.