SNMP::Info::Layer2::C1900 - SNMP Interface to data from Cisco Catalyst 1900

 # Let SNMP::Info determine the correct subclass for you. 
 my $c1900 = new SNMP::Info(
                          AutoSpecify => 1,
                          Debug       => 1,
                          DestHost    => 'myswitch',
                          Community   => 'public',
                          Version     => 1
                        ) 
    or die "Can't connect to DestHost.\n";

 my $class      = $c1900->class();
 print "SNMP::Info determined this device to fall under subclass : $class\n";

 my $c1900 = new SNMP::Info::Layer2::C1900(...);

# SNMP::Info::Layer2::C1900
# $Id$
#
# Copyright (c) 2008 Max Baker changes from version 0.8 and beyond.
#
# Copyright (c) 2002,2003 Regents of the University of California
# 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
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

package SNMP::Info::Layer2::C1900;

use strict;
use Exporter;
use SNMP::Info::CDP;
use SNMP::Info::CiscoStats;
use SNMP::Info::CiscoConfig;
use SNMP::Info::Layer2;

@SNMP::Info::Layer2::C1900::ISA = qw/SNMP::Info::CDP SNMP::Info::CiscoStats
    SNMP::Info::CiscoConfig SNMP::Info::Layer2
    Exporter/;
@SNMP::Info::Layer2::C1900::EXPORT_OK = qw//;

use vars qw/$VERSION %FUNCS %GLOBALS %MIBS %MUNGE/;

$VERSION = '2.05';

%GLOBALS = (
    %SNMP::Info::Layer2::GLOBALS,
    %SNMP::Info::CiscoConfig::GLOBALS,
    %SNMP::Info::CiscoStats::GLOBALS,
    %SNMP::Info::CDP::GLOBALS,
    'c1900_flash_status' => 'upgradeFlashBankStatus',
);

%FUNCS = (
    %SNMP::Info::Layer2::FUNCS,
    %SNMP::Info::CiscoConfig::FUNCS,
    %SNMP::Info::CiscoStats::FUNCS,
    %SNMP::Info::CDP::FUNCS,

    # ESSWITCH-MIB
    'c1900_p_index'        => 'swPortIndex',
    'c1900_p_ifindex'      => 'swPortIfIndex',
    'c1900_p_duplex'       => 'swPortDuplexStatus',
    'c1900_p_duplex_admin' => 'swPortFullDuplex',
    'c1900_p_name'         => 'swPortName',
    'c1900_p_up_admin'     => 'swPortAdminStatus',
    'c1900_p_type'         => 'swPortMediaCapability',
    'c1900_p_media'        => 'swPortConnectorType',
);

%MIBS = (
    %SNMP::Info::Layer2::MIBS,
    %SNMP::Info::CiscoConfig::MIBS,
    %SNMP::Info::CiscoStats::MIBS,
    %SNMP::Info::CDP::MIBS,

    # Also known as the ESSWITCH-MIB
    'STAND-ALONE-ETHERNET-SWITCH-MIB' => 'series2000'
);

%MUNGE = (
    %SNMP::Info::Layer2::MUNGE,     %SNMP::Info::CiscoConfig::MUNGE,
    %SNMP::Info::CiscoStats::MUNGE, %SNMP::Info::CDP::MUNGE,
);

sub bulkwalk_no         { return 1; }
sub cisco_comm_indexing { return 1; }

sub vendor {
    return 'cisco';
}

sub os {
    return 'catalyst';
}

sub os_ver {
    my $c1900 = shift;

    # Check for superclass one
    my $os_ver = $c1900->SUPER::os_ver();
    return $os_ver if defined $os_ver;

    my $c1900_flash_status = $c1900->c1900_flash_status();
    return unless defined $c1900_flash_status;

    if ( $c1900_flash_status =~ m/V(\d+\.\d+(\.\d+)?)/ ) {
        return $1;
    }
    return;
}

sub interfaces {
    my $c1900   = shift;
    my $partial = shift;

    my $i_descr = $c1900->i_description($partial) || {};

    foreach my $iid ( keys %$i_descr ) {
        $i_descr->{$iid} =~ s/\s*$//;
    }
    return $i_descr;
}

sub i_duplex {
    my $c1900   = shift;
    my $partial = shift;

    my $c1900_p_duplex = $c1900->c1900_p_duplex($partial) || {};

    my %i_duplex;
    foreach my $if ( keys %$c1900_p_duplex ) {
        my $duplex = $c1900_p_duplex->{$if};
        next unless defined $duplex;

        $duplex = 'half' if $duplex =~ /half/i;
        $duplex = 'full' if $duplex =~ /full/i;
        $i_duplex{$if} = $duplex;
    }
    return \%i_duplex;
}

sub i_duplex_admin {
    my $c1900   = shift;
    my $partial = shift;

    my $c1900_p_admin = $c1900->c1900_p_duplex_admin($partial) || {};

    my %i_duplex_admin;
    foreach my $if ( keys %$c1900_p_admin ) {
        my $duplex = $c1900_p_admin->{$if};
        next unless defined $duplex;

        $duplex = 'half' if $duplex =~ /disabled/i;
        $duplex = 'full' if $duplex =~ /flow control/i;
        $duplex = 'full' if $duplex =~ /enabled/i;
        $duplex = 'auto' if $duplex =~ /auto/i;
        $i_duplex_admin{$if} = $duplex;
    }
    return \%i_duplex_admin;
}

sub i_name {
    my $c1900   = shift;
    my $partial = shift;

    my $i_name       = $c1900->orig_i_name($partial)  || {};
    my $c1900_p_name = $c1900->c1900_p_name($partial) || {};

    foreach my $port ( keys %$c1900_p_name ) {
        my $name = $c1900_p_name->{$port};
        next unless defined $name;
        next unless $name !~ /^\s*$/;
        $i_name->{$port} = $name;
    }

    return $i_name;
}

sub set_i_duplex_admin {
    my $c1900 = shift;
    my ( $duplex, $port ) = @_;

    # map a textual duplex to an integer one the switch understands
    my %duplexes = qw/full 1 half 2 auto 3/;

    my $iid = $c1900->c1900_p_ifindex($port);

    $duplex = lc($duplex);

    return 0 unless defined $duplexes{$duplex};

    return $c1900->set_c1900_p_duplex_admin( $duplexes{$duplex}, $iid );
}

sub i_vlan {
    my $c1900   = shift;
    my $partial = shift;

    # Overlap allows more than one VLAN per port.  Unable to determine default
    my $overlap = $c1900->bridgeGroupAllowMembershipOverlap()
        || $c1900->vlanAllowMembershipOverlap()
        || 'disabled';

    if ( $overlap eq 'enabled' ) {
        return;
    }

    my $member_of = $c1900->bridgeGroupMemberPortOfBridgeGroup()
        || $c1900->vlanMemberPortOfVlan();

    my $i_pvid = {};
    foreach my $idx ( keys %$member_of ) {
        my @values = split( /\./, $idx );
        my ( $vlan, $port ) = @values;
        next unless $vlan;
        next unless $port;
        next if ( defined $partial and $port !~ /^$partial$/ );
        my $value = $member_of->{$idx};
        next if ( $value eq 'false' );

        $i_pvid->{$port} = $vlan;
    }
    return $i_pvid;
}

sub i_vlan_membership {
    my $c1900   = shift;
    my $partial = shift;

    my $member_of = $c1900->bridgeGroupMemberPortOfBridgeGroup()
        || $c1900->vlanMemberPortOfVlan();

    my $i_vlan_membership = {};
    foreach my $idx ( keys %$member_of ) {
        my @values = split( /\./, $idx );
        my ( $vlan, $port ) = @values;
        next unless $vlan;
        next unless $port;
        next if ( defined $partial and $port !~ /^$partial$/ );
        my $value = $member_of->{$idx};
        next if ( $value eq 'false' );

        push( @{ $i_vlan_membership->{$port} }, $vlan );
    }
    return $i_vlan_membership;
}

sub bp_index {
    my $c1900   = shift;
    my $partial = shift;

    my $if_index = $c1900->i_index($partial);
    my $index = $c1900->orig_bp_index($partial) || {};
    foreach my $iid ( keys %$if_index ) {
        $index->{$iid} = $iid if(!defined $index->{$iid});
    }
    return $index;
}

1;
__END__