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Info/CiscoStpExtensions.pm
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339
Info/CiscoStpExtensions.pm
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# SNMP::Info::CiscoStpExtensions
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#
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# Copyright (c)2003,2004,2006 Max Baker
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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 notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# * Neither the name of the author 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" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package SNMP::Info::CiscoStpExtensions;
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$VERSION = '2.00';
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use strict;
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use Exporter;
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use SNMP::Info;
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use SNMP::Info::Bridge;
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use vars qw/$VERSION $DEBUG %MIBS %FUNCS %GLOBALS %MUNGE %PORTSTAT $INIT/;
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@SNMP::Info::CiscoStpExtensions::ISA = qw/SNMP::Info SNMP::Info::Bridge Exporter/;
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@SNMP::Info::CiscoStpExtensions::EXPORT_OK = qw//;
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%MIBS = (
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%SNMP::Info::Bridge::MIBS,
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'CISCO-STP-EXTENSIONS-MIB' => 'stpxSpanningTreeType',
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);
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%GLOBALS = (
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%SNMP::Info::Bridge::GLOBALS,
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'stpx_mst_config_digest' => 'stpxSMSTConfigDigest',
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'stpx_mst_region_name' => 'stpxMSTRegionName',
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'stpx_mst_region_rev' => 'stpxSMSTRegionRevision',
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'stpx_stp_type' => 'stpxSpanningTreeType',
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'stpx_bpduguard_enable' => 'stpxFastStartBpduGuardEnable',
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'stpx_bpdufilter_enable' => 'stpxFastStartBpduFilterEnable',
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);
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%FUNCS = (
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%SNMP::Info::Bridge::FUNCS,
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'stpx_rootguard_enabled' => 'stpxRootGuardConfigEnabled',
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'stpx_loopguard_enabled' => 'stpxLoopGuardConfigEnabled',
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'stpx_port_bpduguard_mode' => 'stpxFastStartPortBpduGuardMode',
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'stpx_port_bpdufilter_mode' => 'stpxFastStartPortBpduFilterMode',
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'stpx_smst_root' => 'stpxSMSTInstanceCISTRegionalRoot',
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'stpx_smst_vlans_mapped_1k2k' => 'stpxSMSTInstanceVlansMapped1k2k',
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'stpx_smst_vlans_mapped_3k4k' => 'stpxSMSTInstanceVlansMapped3k4k',
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);
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%MUNGE = (
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%SNMP::Info::Bridge::MUNGE,
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'stpx_mst_config_digest' => \&SNMP::Info::CiscoStpExtensions::oct2str,
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);
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# Report version of STP via standard method
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sub stp_ver {
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my $self = shift;
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my $stp_ver = $self->SUPER::stp_ver();
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if ( $stp_ver eq 'unknown' ){
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if ( defined $self->stpx_stp_type() ){
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$stp_ver = $self->stpx_stp_type();
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}
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}
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return $stp_ver;
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}
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sub mst_config_digest {
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my $self = shift;
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return $self->stpx_mst_config_digest;
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}
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sub mst_region_name {
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my $self = shift;
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return $self->stpx_mst_region_name;
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}
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sub mst_region_rev {
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my $self = shift;
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return $self->stpx_mst_region_rev;
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}
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sub mst_vlan2instance {
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my $self = shift;
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# Get MST vlan-to-instance mapping
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my $m1k2k = $self->stpx_smst_vlans_mapped_1k2k;
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my $m3k4k = $self->stpx_smst_vlans_mapped_3k4k;
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# Get list of VLANs
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my $vlan_membership = $self->i_vlan_membership;
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my @vlans;
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foreach my $iid ( keys %$vlan_membership ){
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if ( my $vm = $vlan_membership->{$iid} ){
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foreach my $vid ( @$vm ){
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push @vlans, $vid;
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}
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}
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}
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my %res;
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foreach my $vlan ( @vlans ){
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if ( $vlan < 2048 ){
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foreach my $inst ( keys %$m1k2k ){
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my $list = $m1k2k->{$inst};
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my $vlanlist = [split(//, unpack("B*", $list))];
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if ( @$vlanlist[$vlan] ){
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$res{$vlan} = $inst;
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last;
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}
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}
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}else{
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foreach my $inst ( keys %$m3k4k ){
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my $list = $m3k4k->{$inst};
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my $vlanlist = [split(//, unpack("B*", $list))];
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if ( @$vlanlist[$vlan-2048] ){
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$res{$vlan} = $inst;
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last;
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}
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}
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}
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}
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return \%res;
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}
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sub i_rootguard_enabled {
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my $self = shift;
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my $partial = shift;
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my $rg_enabled = $self->stpx_rootguard_enabled();
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my $bp_index = $self->bp_index($partial);
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my %res;
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foreach my $index ( keys %$rg_enabled ){
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my $enabled = $rg_enabled->{$index};
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my $iid = $bp_index->{$index};
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next unless defined $iid;
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next unless defined $enabled;
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$res{$iid} = $enabled;
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}
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return \%res;
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}
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sub i_loopguard_enabled {
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my $self = shift;
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my $partial = shift;
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my $lg_enabled = $self->stpx_loopguard_enabled();
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my $bp_index = $self->bp_index($partial);
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my %res;
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foreach my $index ( keys %$lg_enabled ){
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my $enabled = $lg_enabled->{$index};
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my $iid = $bp_index->{$index};
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next unless defined $iid;
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next unless defined $enabled;
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$res{$iid} = $enabled;
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}
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return \%res;
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}
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sub i_bpduguard_enabled {
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my $self = shift;
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my $partial = shift;
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my $bpdugm_default = $self->stpx_bpduguard_enable();
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my $bp_index = $self->bp_index($partial);
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my $bpdugm = $self->stpx_port_bpduguard_mode();
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my %res;
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foreach my $index ( keys %$bpdugm ){
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my $mode = $bpdugm->{$index};
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my $iid = $bp_index->{$index};
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next unless defined $iid;
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next unless defined $mode;
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if ( $mode eq 'default' ){
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$res{$iid} = $bpdugm_default;
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}else{
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$res{$iid} = $mode;
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}
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}
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return \%res;
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}
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sub i_bpdufilter_enabled {
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my $self = shift;
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my $partial = shift;
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my $bpdufm_default = $self->stpx_bpdufilter_enable();
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my $bp_index = $self->bp_index($partial);
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my $bpdufm = $self->stpx_port_bpdufilter_mode();
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my %res;
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foreach my $index ( keys %$bpdufm ){
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my $mode = $bpdufm->{$index};
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my $iid = $bp_index->{$index};
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next unless defined $iid;
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next unless defined $mode;
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if ( $mode eq 'default' ){
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$res{$iid} = $bpdufm_default;
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}else{
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$res{$iid} = $mode;
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}
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}
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return \%res;
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}
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sub oct2str {
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my ($v) = @_;
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return sprintf('%s', unpack('H*', $v));
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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::CiscoStpExtensions - SNMP Interface to CISCO-STP-EXTENSIONS-MIB
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=head1 AUTHOR
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Carlos Vicente
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=head1 SYNOPSIS
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=head1 DESCRIPTION
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Create or use a subclass of SNMP::Info that inherits this class. Do not use
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directly.
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For debugging you can call new() directly as you would in SNMP::Info
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my $stpx = new SNMP::Info::CiscoStpExtensions(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info
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=item SNMP::Info::Bridge
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=back
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MIBs can be found at ftp://ftp.cisco.com/pub/mibs/v2/v2.tar.gz
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=head1 GLOBAL METHODS
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These are methods that return scalar values from SNMP
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=over
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=item $stpx->stp_ver()
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Returns the particular STP version running on this device.
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Meant to override SNMP::Info::Brigde::stp_ver()
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Values: pvstPlus, mistp, mistpPvstPlus, mst, rapidPvstPlus
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(stpxSpanningTreeType)
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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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=over
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=item $stpx->mst_config_digest()
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Returns the Multiple Spanning Tree (MST) configuration digest
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(stpxSMSTConfigDigest)
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=item $stpx->mst_region_name()
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Returns the Multiple Spanning Tree (MST) region name
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(stpxMSTRegionName)
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=item $stpx->mst_region_rev()
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Returns the Multiple Spanning Tree (MST) region name
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(stpxSMSTRegionRevision)
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=item $stpx->mst_vlan2instance()
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Returns the mapping of vlan to MST instance in the form of a hash reference
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with key = VLAN id, value = STP instance
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=item $stpx->i_rootguard_enabled()
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Returns 1 or 0 depending on whether RootGuard is enabled on a given port.
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Format is a hash reference with key = ifIndex, value = [1|0]
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(stpxRootGuardConfigEnabled)
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=item $stpx->i_loopguard_enabled()
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Returns 1 or 0 depending on whether LoopGuard is enabled on a given port.
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Format is a hash reference with key = ifIndex, value = [1|0]
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(stpxLoopGuardConfigEnabled)
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=item $stpx->i_bpduguard_enabled()
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Returns 1 or 0 depending on whether BpduGuard is enabled on a given port.
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Format is a hash reference with key = ifIndex, value = [1|0]
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(stpxFastStartPortBpduGuardMode)
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=item $stpx->i_bpdufilter_enabled()
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Returns 1 or 0 depending on whether BpduFilter is enabled on a given port.
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Format is a hash reference with key = ifIndex, value = [1|0]
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(stpxFastStartBpduFilterEnable)
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=back
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