345 lines
9.4 KiB
Perl
345 lines
9.4 KiB
Perl
# SNMP::Info::Layer3::C3550
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# $Id$
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#
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# Copyright (c) 2008-2009 Max Baker changes from version 0.8 and beyond.
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# Copyright (c) 2004 Regents of the University of California
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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::C3550;
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use strict;
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use warnings;
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use Exporter;
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use SNMP::Info::CiscoStack;
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use SNMP::Info::Layer3::CiscoSwitch;
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use vars qw/$VERSION %GLOBALS %MIBS %FUNCS %MUNGE/;
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# NOTE : Top-most items gets precedence for @ISA
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@SNMP::Info::Layer3::C3550::ISA = qw/
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SNMP::Info::CiscoStack
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SNMP::Info::Layer3::CiscoSwitch
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Exporter/;
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@SNMP::Info::Layer3::C3550::EXPORT_OK = qw//;
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$VERSION = '3.47';
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# NOTE: Order creates precedence
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# Example: v_name exists in Bridge.pm and CiscoVTP.pm
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# Bridge is called from Layer3 and CiscoStpExtensions
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# So we want CiscoVTP to come last to get the right one.
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# The @ISA order should match these orders.
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%MIBS
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= ( %SNMP::Info::Layer3::CiscoSwitch::MIBS, %SNMP::Info::CiscoStack::MIBS,
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);
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%GLOBALS = (
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%SNMP::Info::Layer3::CiscoSwitch::GLOBALS,
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%SNMP::Info::CiscoStack::GLOBALS,
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);
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%FUNCS = (
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%SNMP::Info::Layer3::CiscoSwitch::FUNCS,
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%SNMP::Info::CiscoStack::FUNCS,
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);
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%MUNGE = (
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%SNMP::Info::Layer3::CiscoSwitch::MUNGE,
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%SNMP::Info::CiscoStack::MUNGE,
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);
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sub vendor {
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return 'cisco';
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}
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sub model {
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my $c3550 = shift;
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my $id = $c3550->id();
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my $model = &SNMP::translateObj($id) || $id;
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$model =~ s/^catalyst//;
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# turn 355048 into 3550-48
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if ( $model =~ /^(35\d\d)(\d\d(T|G)?)$/ ) {
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$model = "$1-$2";
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}
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return $model;
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}
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# Ports is encoded into the model number
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sub ports {
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my $c3550 = shift;
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my $id = $c3550->id();
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my $model = &SNMP::translateObj($id);
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if ( $model =~ /(12|24|48)(C|T|TS|G|TS-E|TS-S|T-E)?$/ ) {
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return $1;
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}
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my $ports = $c3550->orig_ports();
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return $ports;
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}
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# Verions prior to 12.1(22)EA1a use the older CiscoStack method
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# Newer versions use the ETHERLIKE-MIB to report operational duplex.
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# See http://www.ciscosystems.com/en/US/products/hw/switches/ps646/prod_release_note09186a00802a08ee.html
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sub i_duplex {
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my $c3550 = shift;
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my $partial = shift;
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my $el_duplex = $c3550->el_duplex($partial);
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# Newer software
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if ( defined $el_duplex and scalar( keys %$el_duplex ) ) {
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my %i_duplex;
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foreach my $el_port ( keys %$el_duplex ) {
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my $duplex = $el_duplex->{$el_port};
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next unless defined $duplex;
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$i_duplex{$el_port} = 'half' if $duplex =~ /half/i;
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$i_duplex{$el_port} = 'full' if $duplex =~ /full/i;
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}
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return \%i_duplex;
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}
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# Fall back to CiscoStack method
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else {
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return $c3550->SUPER::i_duplex($partial);
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}
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}
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# Software >= 12.1(22)EA1a uses portDuplex as admin setting
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sub i_duplex_admin {
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my $c3550 = shift;
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my $partial = shift;
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my $el_duplex = $c3550->el_duplex($partial);
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# Newer software
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if ( defined $el_duplex and scalar( keys %$el_duplex ) ) {
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my $p_port = $c3550->p_port() || {};
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my $p_duplex = $c3550->p_duplex() || {};
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my $i_duplex_admin = {};
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foreach my $port ( keys %$p_duplex ) {
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my $iid = $p_port->{$port};
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next unless defined $iid;
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next if ( defined $partial and $iid !~ /^$partial$/ );
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$i_duplex_admin->{$iid} = $p_duplex->{$port};
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}
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return $i_duplex_admin;
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}
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# Fall back to CiscoStack method
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else {
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return $c3550->SUPER::i_duplex_admin($partial);
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}
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}
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sub set_i_duplex_admin {
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# map a textual duplex to an integer one the switch understands
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my %duplexes = qw/half 1 full 2 auto 4/;
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my $c3550 = shift;
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my ( $duplex, $iid ) = @_;
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my $el_duplex = $c3550->el_duplex($iid);
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# Auto duplex only supported on newer software
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if ( defined $el_duplex and scalar( keys %$el_duplex ) ) {
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my $p_port = $c3550->p_port() || {};
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my %reverse_p_port = reverse %$p_port;
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$duplex = lc($duplex);
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return 0 unless defined $duplexes{$duplex};
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$iid = $reverse_p_port{$iid};
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return $c3550->set_p_duplex( $duplexes{$duplex}, $iid );
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}
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else {
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return $c3550->SUPER::set_i_duplex_admin;
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}
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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::C3550 - SNMP Interface to Cisco Catalyst 3550 Layer 2/3
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Switches running IOS
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=head1 AUTHOR
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Max Baker
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $c3550 = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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# These arguments are passed directly to SNMP::Session
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DestHost => 'myswitch',
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Community => 'public',
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Version => 2
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)
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or die "Can't connect to DestHost.\n";
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my $class = $c3550->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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Abstraction subclass for Cisco Catalyst 3550 Layer 2/3 Switches.
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These devices run IOS but have some of the same characteristics as the
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Catalyst WS-C family (5xxx,6xxx). For example, forwarding tables are held in
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VLANs, and extended interface information is gleaned from F<CISCO-SWITCH-MIB>.
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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 $c3550 = new SNMP::Info::Layer3::C3550(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info::CiscoStack
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=item SNMP::Info::Layer3::CiscoSwitch
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=back
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=head2 Required MIBs
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=over
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=item Inherited Classes' MIBs
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See L<SNMP::Info::CiscoStack/"Required MIBs"> for its own MIB requirements.
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See L<SNMP::Info::Layer3::CiscoSwitch/"Required MIBs"> for its own MIB
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requirements.
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=back
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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 $c3550->vendor()
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Returns 'cisco'
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=item $c3550->model()
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Will take the translated model number and try to format it better.
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355048 -> 3550-48
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355012G -> 3550-12G
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=item $c3550->ports()
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Tries to cull the number of ports from the model number.
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=back
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=head2 Globals imported from SNMP::Info::CiscoStack
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See documentation in L<SNMP::Info::CiscoStack/"GLOBALS"> for details.
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=head2 Globals imported from SNMP::Info::Layer3::CiscoSwitch
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See documentation in L<SNMP::Info::Layer3::CiscoSwitch/"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 $c3550->i_duplex()
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Returns reference to hash of iid to current link duplex setting.
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Software version 12.1(22)EA1a or greater returns duplex based upon the
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result of $c3550->el_duplex(). Otherwise it uses the result of
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the call to CiscoStack::i_duplex().
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See L<SNMP::Info::Etherlike> for el_duplex() method and
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L<SNMP::Info::CiscoStack> for its i_duplex() method.
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=item $c3550->i_duplex_admin()
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Returns reference to hash of iid to administrative duplex setting.
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Software version 12.1(22)EA1a or greater returns duplex based upon the
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result of $c3550->p_duplex(). Otherwise it uses the result of
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the call to CiscoStack::i_duplex().
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See L<SNMP::Info::CiscoStack> for its i_duplex() and p_duplex() methods.
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=item $c3550->set_i_duplex_admin(duplex, ifIndex)
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Sets port duplex, must be supplied with duplex and port C<ifIndex>.
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Speed choices are 'auto', 'half', 'full'.
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Crosses $c3550->p_port() with $c3550->p_duplex() to utilize port C<ifIndex>.
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Example:
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my %if_map = reverse %{$c3550->interfaces()};
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$c3550->set_i_duplex_admin('auto', $if_map{'FastEthernet0/1'})
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or die "Couldn't change port duplex. ",$c3550->error(1);
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=back
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=head2 Table Methods imported from SNMP::Info::CiscoStack
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See documentation in L<SNMP::Info::CiscoStack/"TABLE METHODS"> for details.
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=head2 Table Methods imported from SNMP::Info::Layer3::CiscoSwitch
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See documentation in L<SNMP::Info::Layer3::CiscoSwitch/"TABLE METHODS"> for
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details.
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=cut
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