SNMP::Info - Friendly OO-style interface to Network devices using SNMP.
ChangeLog $Id: ChangeLog,v 1.51 2006/07/08 02:17:21 jeneric Exp $

version 1.04 (07/08/06)
    +  Added C1130 and C1240 to L2::Aironet (Ralf Gross)
    +  Added detection for Cisco 2960, 2940, 3400 w/ MetroBase
    +  Added generic L2::Cisco Class
    *  Corrected detection for Cisco Supervisor Engine 2 and 32 (IOS).  
    *  Fixed warnings in CiscoStack
    *  Updated ProCurve HP device detection for newer firmwares

version 1.03 (04/14/06) - Beta/developer release
    * Use ipNetToMedia table instead of atTable for ARP
    * Remove CiscoStack from Layer3::C4000
    * Fixed bug in MAU class when polling devices without MAU-MIB support 

version 1.01 (04/08/06) - Beta/developer release
    + Change version numbers to X.XX format.  Odd releases are beta
      or developer only releases.  Even are official releases.

version 1.0 (04/07/06) - CVS only. No official release
    + Added Interface FlowControl status to CiscoStack (Nicolai Petri)
    + Added CiscoImage class (Matthew Tuttle)
    + Added C1200 and C350 IOS devices to L2::Aironet (Matthew Tuttle)
    + Added support for Foundry IronWare and gave L3::Foundry CPR
    + Added support for Foundry EdgeIrons as new class L2::Foundry
    + Added BulkWalk and BulkRepeaters options to new()
    + Added DebugSNMP option to new()
      to for model()
    + Check for bulkwalk_no() method
    + Added to L3 and L2 classes per N. Petri's suggestion.
    + Added support for Passport/Accelar 1100 and 1200 series in L3::Passport
    + Added support for Passport/Accelar 8100 series in L3::Passport
    + Added support for Passport 1600 series as new class, L3::N1600
    + Added support for Extreme Alpine and Summit switches as new class
      L3:Extreme (Mike Hunter and Eric Miller)
    + Added support for Aruba wireless switches (Eric Miller and Brian Chow)
    + Added support for Nortel 2700 series (Airespace) wireless switches
    + Added support for Synoptics hubs as new class L1:S3000
    + Added Cisco QOS and RTT classes (Alexander Hartmaier)
    + Added BGP Peer Table to L3 class (Carlos Vicente)
    + Added ipforwarding status to Info base class (Carlos Vicente)
    + Added STP port state to Bridge class (Alexander Barthel)
    + Added L3 support (arpnip) to Baystack class for routing capable switches
    + Added set_i_duplex_admin() and set_i_speed_admin() to C2900 class (Justin Hunter)
    + Added set_i_duplex_admin() and set_i_speed_admin() to CiscoStack class
    + CDP added to Aironet class
    + Added Juniper class
    + Added support for Catalyst 4000 and 4500, get admin. duplex
      and speed properly
    + Added i_speed_high(), which i_speed() uses if needed to support
      interfaces >4Gbps

    * More error checking in  _load_attr() around bulkwalk code
    * Minor warning fix in L3::Aironet::os_ver()
    * Abstracted remaining Cisco stuff from L3 to L3::Cisco
    * Removed all Cisco stuff from L2
    * Expanded to cover the whole ENTITY-MIB and improved docs.
    * changed all refs to $DEBUG to $self->debug() for reentrant code
    * [ 1111284 ] Parameters not being set with AutoSpecify - fixed.
    * Turned off BULKWALK for C1900 and C6500 classes.
    * Added exception handling for V2 ENDOFMIBVIEW
    * Fix in SONMP when topology not enabled
    * Fix in L3::Passport root_ip()
    * Fix in L3::Passport bp_index() some devices not returning complete index.
    * Enable set_i_up_admin() in Bayhub
    * Recognize new Nortel model names in Baystack and Passport classes
    * Orinoco class should now recognize more models
    * Cleanup model recognition in Baystack class, recognize more models
    * Modify Catalyst class to use CISCO-STACK-MIB for brige port index mapping
      some devices having problems returning complete index from BRIDGE-MIB
    * Check root ip for reachability before assignment
    * HP class should recognize more models
    * Fix in HP class for models not returning full bp_index
    * [ 1436103 ] L2::Aironet devices weren't getting their model
      translated properly

verison 0.9 (11/15/04)
    + ** Added full Nortel/Bay/BayStack support 
        by new developer Eric Miller.  
        L2::Bay now depricated.
    + Added Alteon Ace support (Eric Miller)
    + Added Nortel Cotivity support (Eric Miller)
    + Added Nortel BayRS support (Eric Miller)
    + Added Nortel Centillion support (Eric Miller)
    + Added Nortel AP 222x support (Eric Miller)
    + Added Orinco AP support (Eric Miller) 
    + Added i_lastchange() per suggestion of Nicolai Petri
    + Added BULKWALK patch by Bradley Baetz - This should
          greatly speed up requests on SNMPv2c devices.
    + Added MibDirs option to new() to allow specifying non-system MIB directories.

    * Added C3560s to the C3550 class. Thanks to Nicolai.
    * Fixed Bug where older Cisco's would append nulls to certain
      CDP information.  Would come up a 'DBD::Pg parser' error in Netdisco
    * Changed so a failed _global() call is cached so it won't retry
      an error over and over again if the same global is used.
    * Added check in _set() to see if data came from sub or FUNCS/GLOBALS
      Fails if came from sub.

version 0.8 (03/21/04)
    + Added Q-BRIDGE-MIB support to SNMP::Info::Bridge
    + Added Aironet AP4800 to Layer3::Aironet class
    + Added C3500XL devices to the Layer2::C2900 class
    + Added Cisco 3750 (37xxstack) to Layer3::C6500 class
    + Added Cisco Catalyst 4000 to Layer3::C6500 class
    + Added Cisco Catalyst 2970 to Layer3::C6500 Class
    * Made Cisco Commuinty string indexing a boolean method for clarification
    * Added VLAN info for HP devices using Q-BRIDGE-MIB
    * Fixed warning about uninitialized value in CiscoStats line 92
    * Added for more serial# checking for L2 and L3
    * Fixed warning in Layer2::Bay about non numeric port line 199
    Contributions from Dmitry Sergienko:
    + Added Cisco Aironet BR500 and AP1200 to L2::Aironet Class
    * Fixed the Port name alias for Catalyst 2900 devices
    + Added Support For ZyXEL DSLAMs and Allied Telesys Switches

version 0.7 (08/14/03)
    * Added Class for Catalyst 6500 Series - Layer3::C6500
    * Added CiscoVTP support to 3550,2900, and Catalyst classes
    * Extracted VLAN stuff from Layer2::Catalyst to SNMP::Info::CiscoVTP
    * Extracted CISCO-STACK-MIB from Layer2::Catalyst to SNMP::Info::CiscoStack
    * Added 2950's to the Layer2::C2900 class
    * Added 3548's and 350x's to the Layer3::C3550 class
    * Broke out 3550's into separate device types (3550-24, 3550-48)
    * Added T1,dual T1, and T3 , ATM over OC-12 ... to the SPEED_MAP
    * Fixed speed map -- OC-1 -> OC-3
    * Fixed Bug where Catalyst Switch running IOS would report CatOS as os()

version 0.6 (06/18/03)
    * Minor Bug Fix.  SNMP::Info::Layer2::Bay and SNMP::Info::Layer2::C1900
      didn't return 1 and failed to load on some versions of Perl.

version 0.5 (06/10/03)
    * Added ability to get paritial tables.  For example to get the
      IP routing table for 128.114.*  you can do 
      $ipr = $dev->ipr_dest('128.114');
    * Added IP Routing Table entries from RFC1213 to SNMP::Info
    * minor bug fixes

version 0.4 (04/29/03)
    * BIG CHANGE ! Internal Data structure has changed.  
    * Added clear_cache() method
    * Added NO_SUCH support for snmpget (TABLE) calls to get SNMP MIB II data 
      from SNMP Version 1 devices.
    * Methods load_all() and all() have changed their return value. Sorry but the API had to change.
    * New object methods snmp_comm(), snmp_ver(), store(), class(), nosuch() to make it more OO happy.
    * Globals are now cached
    * Added new argument 'AutoSpecify' to new() to auto-connect with subclass 
      detected in device_type()
    * New method specify() returns a new subclass object
    * Subclasses are automatically loaded when specify or autospecify is used!
    * Added methods for Interface statistics (ifInOctets ...)
    * Added methods for Memory and CPU statistics 
    * Added SNMP::Info::Entity, moved out of L2-HP
    * Added SNMP::Info::Layer2::Aironet

version 0.3 (03/06/03)
    * Fixed HP model() warning
    * Added error checking for responses of NOSUCHOBJECT and NOSUCHINSTANCE in _global
      and _load_attr
    * Added more debugging
    * Added info and munging for c_capabilities in SNMP::Info::CD
      Thanks to Martin Lorensen <martin /at->
    * Removed requirement for SNMP in the Makefile.PL and moved it to t/prereq.t
      so that the Module will install via CPAN without trying to install the old
      4.2.0 version of SNMP on CPAN.  Will now fail in the test phase. 
      Thanks again to Martin Lorensen <martin /at->
    * Moved tests from to t/*

version 0.2 (02/19/03)
    * Added put_() methods and support for SNMP put commands
    * Added SNMP::Info::Layer3::C3550 class for Cisco Catalyst 3550
    * Fixed HP Detection in device_type()
    * Added Spanning Tree Protocol (STP) methods to SNMP::Info::Bridge
    * Removed HP Specific MIBS in SNMP::Info::Layer2 and cleaned up model()
    * Added poke for Bay 450 Switches 
    * Mapped HP Part Numbers to model numbers J4812A => 2512 in SNMP::Info::Layer2::HP
version 0.1 (12/30/02)
    * Initial Release
    * SubClasses Included:
        * SNMP::Info::Bridge
        * SNMP::Info::CDP
        * SNMP::Info::EtherLike
        * SNMP::Info::MAU
        * SNMP::Info::Layer1
              o SNMP::Info::Layer1::Allied
              o SNMP::Info::Layer1::Asante 
        * SNMP::Info::Layer2
              o SNMP::Info::Layer2::Bay
              o SNMP::Info::Layer2::C1900
              o SNMP::Info::Layer2::C2900
              o SNMP::Info::Layer2::Catalyst
              o SNMP::Info::Layer2::HP 
        * SNMP::Info::Layer3
              o SNMP::Info::Layer3::Aironet
              o SNMP::Info::Layer3::Foundry