migrate from EUMM to Module::Build
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Oliver Gorwits
442
lib/SNMP/Info/Layer3/Enterasys.pm
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442
lib/SNMP/Info/Layer3/Enterasys.pm
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# SNMP::Info::Layer3::Enterasys - SNMP Interface to Enterasys devices
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# $Id$
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#
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# Copyright (c) 2008 Eric Miller
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the University of California, Santa Cruz nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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package SNMP::Info::Layer3::Enterasys;
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use strict;
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use Exporter;
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use SNMP::Info::MAU;
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use SNMP::Info::LLDP;
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use SNMP::Info::CDP;
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use SNMP::Info::Layer3;
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@SNMP::Info::Layer3::Enterasys::ISA = qw/SNMP::Info::MAU SNMP::Info::LLDP
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SNMP::Info::CDP SNMP::Info::Layer3
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Exporter/;
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@SNMP::Info::Layer3::Enterasys::EXPORT_OK = qw//;
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use vars qw/$VERSION $DEBUG %GLOBALS %FUNCS $INIT %MIBS %MUNGE/;
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$VERSION = '3.35';
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%MIBS = (
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%SNMP::Info::Layer3::MIBS, %SNMP::Info::CDP::MIBS,
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%SNMP::Info::LLDP::MIBS, %SNMP::Info::MAU::MIBS,
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'ENTERASYS-OIDS-MIB' => 'etsysOidDevice',
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);
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%GLOBALS = (
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%SNMP::Info::Layer3::GLOBALS, %SNMP::Info::CDP::GLOBALS,
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%SNMP::Info::LLDP::GLOBALS, %SNMP::Info::MAU::GLOBALS,
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'mac' => 'dot1dBaseBridgeAddress',
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);
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%FUNCS = (
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%SNMP::Info::Layer3::FUNCS, %SNMP::Info::CDP::FUNCS,
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%SNMP::Info::LLDP::FUNCS, %SNMP::Info::MAU::FUNCS,
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);
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%MUNGE = (
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%SNMP::Info::Layer3::MUNGE, %SNMP::Info::CDP::MUNGE,
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%SNMP::Info::LLDP::MUNGE, %SNMP::Info::MAU::MUNGE,
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);
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sub model {
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my $enterasys = shift;
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my $id = $enterasys->id();
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unless ( defined $id ) {
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print
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" SNMP::Info::Layer3::Enterasys::model() - Device does not support sysObjectID\n"
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if $enterasys->debug();
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return;
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}
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my $model = &SNMP::translateObj($id);
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$model =~ s/^etsysOidDev//i;
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$model =~ s/^etsysOidPhy//i;
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return $id unless defined $model;
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return $model;
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}
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sub vendor {
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return 'enterasys';
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}
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sub os {
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return 'enterasys';
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}
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sub os_ver {
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my $enterasys = shift;
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my $descr = $enterasys->description();
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return unless defined $descr;
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if ( $descr =~ m/\bRev ([\d.]*)/ ) {
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return $1;
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}
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return;
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}
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# Use ifName as it is used for CDP and LLDP.
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sub interfaces {
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my $enterasys = shift;
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my $partial = shift;
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# We need the original ifName, SUPER:: would give us a method definition
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# in a higher class, we could use orig_ but just call the MIB leaf since
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# that's what we really want anyway.
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return $enterasys->ifName($partial)
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|| $enterasys->i_description($partial);
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}
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sub i_ignore {
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my $enterasys = shift;
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my $partial = shift;
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my $interfaces = $enterasys->i_type($partial) || {};
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my %i_ignore;
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foreach my $if ( keys %$interfaces ) {
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if ( $interfaces->{$if} =~ /(rs232|tunnel|loopback|\blo\b|null)/i ) {
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$i_ignore{$if}++;
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}
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}
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return \%i_ignore;
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}
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sub i_duplex {
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my $enterasys = shift;
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my $partial = shift;
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return $enterasys->mau_i_duplex($partial);
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}
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sub i_duplex_admin {
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my $enterasys = shift;
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my $partial = shift;
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return $enterasys->mau_i_duplex_admin($partial);
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}
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# TimeFilter implementation continuously increments when walked
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# and we may never reach the end of the table. This behavior can be
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# modified with the "set snmp timefilter break disable" command,
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# unfortunately it is not the default. Query with a partial value of zero
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# which means no time filter for tables with and index containing a
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# TimeFilter
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sub qb_fdb_index {
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my $bridge = shift;
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my $qb_fdb_ids = $bridge->dot1qVlanFdbId(0) || {};
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# Strip the TimeFilter
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my $vl_fdb_index = {};
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for my $fdb_entry (keys(%$qb_fdb_ids)) {
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(my $vlan = $fdb_entry) =~ s/^\d+\.//;
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$vl_fdb_index->{$qb_fdb_ids->{$fdb_entry}} = $vlan;
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}
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return $vl_fdb_index;
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}
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sub i_vlan_membership {
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my $bridge = shift;
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my $partial = shift;
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# dot1qVlanCurrentTable TimeFilter index
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my $v_ports = $bridge->qb_cv_egress(0) || $bridge->qb_v_egress();
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return $bridge->_vlan_hoa($v_ports, $partial);
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}
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sub i_vlan_membership_untagged {
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my $bridge = shift;
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my $partial = shift;
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# dot1qVlanCurrentTable TimeFilter index
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my $v_ports = $bridge->qb_cv_untagged(0) || $bridge->qb_v_untagged();
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return $bridge->_vlan_hoa($v_ports, $partial);
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}
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sub lldp_ip {
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my $enterasys = shift;
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my $partial = shift || 0;
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return $enterasys->SUPER::lldp_ip($partial);
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}
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# [3564920] LLDP-MIB::lldpLocPortDesc isn't always unique,
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# use LLDP-MIB::lldpLocPortId this cross references to ifName
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sub lldp_if {
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my $lldp = shift;
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my $partial = shift || 0;
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my $addr = $lldp->lldp_rem_pid($partial) || {};
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my $i_descr = $lldp->ifName() || {};
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my %r_i_descr = reverse %$i_descr;
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my %lldp_if;
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foreach my $key ( keys %$addr ) {
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my @aOID = split( '\.', $key );
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my $port = $aOID[1];
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next unless $port;
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# Local LLDP port may not equate to ifIndex
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# Cross reference lldpLocPortId with ifName to get ifIndex
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my $lldp_desc = $lldp->lldpLocPortId($port);
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my $desc = $lldp_desc->{$port};
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# If cross reference is successful use it, otherwise stick with lldpRemLocalPortNum
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if ( exists $r_i_descr{$desc} ) {
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$port = $r_i_descr{$desc};
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}
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$lldp_if{$key} = $port;
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}
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return \%lldp_if;
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}
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sub lldp_port {
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my $enterasys = shift;
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my $partial = shift || 0;
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return $enterasys->SUPER::lldp_port($partial);
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}
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sub lldp_id {
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my $enterasys = shift;
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my $partial = shift || 0;
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return $enterasys->SUPER::lldp_id($partial);
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}
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sub lldp_platform {
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my $enterasys = shift;
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my $partial = shift || 0;
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return $enterasys->SUPER::lldp_rem_sysdesc($partial);
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}
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1;
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__END__
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=head1 NAME
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SNMP::Info::Layer3::Enterasys - SNMP Interface to Enterasys Network Devices
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=head1 AUTHOR
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Eric Miller
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $enterasys = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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DestHost => 'myswitch',
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Community => 'public',
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Version => 1
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)
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or die "Can't connect to DestHost.\n";
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my $class = $enterasys->class();
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print "SNMP::Info determined this device to fall under subclass : $class\n";
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=head1 DESCRIPTION
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Provides abstraction to the configuration information obtainable from an
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Enterasys device through SNMP.
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For speed or debugging purposes you can call the subclass directly, but not
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after determining a more specific class using the method above.
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my $enterasys = new SNMP::Info::Layer3::Enterasys(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info::MAU
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=item SNMP::Info::LLDP
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=item SNMP::Info::CDP
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=item SNMP::Info::Layer3
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=back
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=head2 Required MIBs
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=over
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=item F<ENTERASYS-OIDS-MIB>
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=back
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=head2 Inherited MIBs
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See L<SNMP::Info::MAU/"Required MIBs"> for its MIB requirements.
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See L<SNMP::Info::LLDP/"Required MIBs"> for its MIB requirements.
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See L<SNMP::Info::CDP/"Required MIBs"> for its MIB requirements.
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See L<SNMP::Info::Layer3/"Required MIBs"> for its MIB requirements.
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=head1 GLOBALS
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These are methods that return scalar value from SNMP
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=over
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=item $enterasys->model()
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Returns model type. Checks $enterasys->id() against the
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F<ENTERASYS-OIDS-MIB>.
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=item $enterasys->vendor()
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Returns enterasys
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=item $enterasys->os()
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Returns enterasys
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=item $enterasys->os_ver()
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Returns os version extracted from C<sysDescr>
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=item $enterasys->mac()
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Returns base mac
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(C<dot1dBaseBridgeAddress>)
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=back
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=head2 Globals imported from SNMP::Info::MAU
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See documentation in L<SNMP::Info::MAU/"GLOBALS"> for details.
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=head2 Globals imported from SNMP::Info::LLDP
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See documentation in L<SNMP::Info::LLDP/"GLOBALS"> for details.
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=head2 Globals imported from SNMP::Info::CDP
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See documentation in L<SNMP::Info::CDP/"GLOBALS"> for details.
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=head2 Globals imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3/"GLOBALS"> for details.
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=head1 TABLE METHODS
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These are methods that return tables of information in the form of a reference
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to a hash.
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=head2 Overrides
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=over
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=item $enterasys->interfaces()
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Mapping between the Interface Table Index (iid) and the physical port name.
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=item $enterasys->i_ignore()
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Returns reference to hash. Creates a key for each IID that should be ignored.
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Currently looks for rs232, tunnel,loopback,lo,null from
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$enterasys->interfaces()
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=item $enterasys->i_duplex()
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See documentation for mau_i_duplex() in L<SNMP::Info::MAU/"TABLE METHODS">.
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=item $enterasys->i_duplex_admin()
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See documentation for mau_i_duplex_admin() in
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L<SNMP::Info::MAU/"TABLE METHODS">.
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=back
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=head2 Time Filter Table Index Overrides
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The time filter C<TimeFilter> implementation continuously increments when
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walked and we may never reach the end of the table. This behavior can be
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modified with the C<"set snmp timefilter break disable"> command,
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unfortunately it is not the default. These methods are overridden to
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supply a partial value of zero which means no time filter.
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=over
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=item $enterasys->qb_fdb_index()
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=item $enterasys->i_vlan_membership()
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=item $enterasys->i_vlan_membership_untagged()
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=item $enterasys->lldp_if()
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=item $enterasys->lldp_ip()
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=item $enterasys->lldp_port()
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=item $enterasys->lldp_id()
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=item $enterasys->lldp_platform()
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=back
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=head2 Table Methods imported from SNMP::Info::MAU
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See documentation in L<SNMP::Info::MAU/"TABLE METHODS"> for details.
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=head2 Table Methods imported from SNMP::Info::LLDP
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See documentation in L<SNMP::Info::LLDP/"TABLE METHODS"> for details.
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=head2 Table Methods imported from SNMP::Info::CDP
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See documentation in L<SNMP::Info::CDP/"TABLE METHODS"> for details.
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=head2 Table Methods imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3/"TABLE METHODS"> for details.
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=cut
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