# SNMP::Info::CiscoAgg
#
# Copyright (c) 2014 SNMP::Info Developers
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the University of California, Santa Cruz nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
package SNMP::Info::CiscoAgg;
use strict;
use Exporter;
use SNMP::Info::IEEE802dot3ad 'agg_ports_lag';
@SNMP::Info::CiscoAgg::ISA = qw/
SNMP::Info::IEEE802dot3ad
Exporter
/;
@SNMP::Info::CiscoAgg::EXPORT_OK = qw/
agg_ports
/;
use vars qw/$VERSION %MIBS %FUNCS %GLOBALS %MUNGE/;
$VERSION = '3.34';
%MIBS = (
%SNMP::Info::IEEE802dot3ad::MIBS,
'CISCO-PAGP-MIB' => 'pagpGroupIfIndex',
);
%GLOBALS = ();
%FUNCS = ();
%MUNGE = ();
sub agg_ports_pagp {
my $dev = shift;
# Note that this mapping will miss any interfaces that are down during
# polling. If one of the members is up, we could use
# pagpAdminGroupCapability to figure things out, but if they're all
# down, we're hosed. Since we could be hosed anyway, we skip the fancy
# stuff.
my $mapping = {};
my $group = $dev->pagpGroupIfIndex;
for my $slave (keys %$group) {
my $master = $group->{$slave};
next if($master == 0 || $slave == $master);
$mapping->{$slave} = $master;
}
return $mapping;
}
# until we have PAgP data and need to combine with LAG data
sub agg_ports {
my $ret = {%{agg_ports_pagp(@_)}, %{agg_ports_lag(@_)}};
return $ret;
}
1;
__END__
=head1 NAME
SNMP::Info::CiscoAgg - SNMP Interface to Cisco Aggregated Links
=head1 AUTHOR
SNMP::Info Developers
=head1 SYNOPSIS
# Let SNMP::Info determine the correct subclass for you.
my $info = new SNMP::Info(
AutoSpecify => 1,
Debug => 1,
DestHost => 'myrouter',
Community => 'public',
Version => 2
)
or die "Can't connect to DestHost.\n";
my $class = $info->class();
print "SNMP::Info determined this device to fall under subclass : $class\n";
=head1 DESCRIPTION
This class provides access to Aggregated Links configuration on Cisco devices.
It combines Cisco PAgP and IEEE 802.3ad information.
Use or create in a subclass of SNMP::Info. Do not use directly.
=head2 Inherited Classes
L<SNMP::Info::IEEE802dot3ad>
=head2 Required MIBs
=over
=item F<CISCO-PAGP-MIB>
=back
MIBs can be found at ftp://ftp.cisco.com/pub/mibs/v2/v2.tar.gz
=head1 METHODS
=over 4
=item C<agg_ports>
Returns a HASH reference mapping from slave to master port for each member of
a port bundle on the device. Keys are ifIndex of the slave ports, Values are
ifIndex of the corresponding master ports.
=item C<agg_ports_pagp>
Implements the PAgP LAG info retrieval. Merged into C<agg_ports> data
automatically.
=back
=cut