Info::Layer2(3pm)					User Contributed Perl Documentation					 Info::Layer2(3pm)

NAME

       SNMP::Info::Layer2 - SNMP Interface to network devices serving Layer2 only.

AUTHOR

       Max Baker

SYNOPSIS

	# Let SNMP::Info determine the correct subclass for you.
	my $l2 = new SNMP::Info(
				 AutoSpecify => 1,
				 Debug	     => 1,
				 DestHost    => 'myswitch',
				 Community   => 'public',
				 Version     => 2
			       )
	   or die "Can't connect to DestHost.
";

	my $class      = $l2->class();
	print "SNMP::Info determined this device to fall under subclass : $class
";

	# Let's get some basic Port information
	my $interfaces = $l2->interfaces();
	my $i_up       = $l2->i_up();
	my $i_speed    = $l2->i_speed();
	foreach my $iid (keys %$interfaces) {
	   my $port  = $interfaces->{$iid};
	   my $up    = $i_up->{$iid};
	   my $speed = $i_speed->{$iid}
	   print "Port $port is $up. Port runs at $speed.
";
	}

DESCRIPTION

       This class is usually used as a superclass for more specific device classes listed under SNMP::Info::Layer2::*	Please read all docs under
       SNMP::Info first.

       Provides abstraction to the configuration information obtainable from a Layer2 device through SNMP.  Information is stored in a number of
       MIBs.

       For speed or debugging purposes you can call the subclass directly, but not after determining a more specific class using the method above.

	my $l2 = new SNMP::Info::Layer2(...);

   Inherited Classes
       SNMP::Info
       SNMP::Info::Bridge
       SNMP::Info::Entity

   Required MIBs
       Inherited Classes
	   MIBs required by the inherited classes listed above.

       MIBs can be found in netdisco-mibs package.

GLOBALS

       These are methods that return scalar value from SNMP

   Overrides
       $l2->model()
	   Cross references $l2->id() with product IDs in the Cisco MIBs.

	   For HP devices, removes 'hpswitch' from the name

	   For Cisco devices, removes c<'sysid'> from the name

       $l2->vendor()
	   Tries to discover the vendor from $l2->model() and $l2->description()

       $l2->serial()
	   Returns serial number if available through SNMP

   Globals imported from SNMP::Info
       See documentation in "GLOBALS" in SNMP::Info for details.

   Globals imported from SNMP::Info::Bridge
       See documentation in "GLOBALS" in SNMP::Info::Bridge for details.

   Globals imported from SNMP::Info::Entity
       See documentation in "GLOBALS" in SNMP::Info::Entity for details.

TABLE METHODS

       These are methods that return tables of information in the form of a reference to a hash.

   Overrides
       $l2->interfaces()
	   Creates a map between the interface identifier (iid) and the physical port name.

	   Defaults to "ifDescr" but checks and overrides with "ifName"

       $l2->i_ignore()
	   Returns reference to hash.  Increments value of IID if port is to be ignored.

	   Ignores ports with "ifType" of loopback, propvirtual, other, and cpu

   Table Methods imported from SNMP::Info
       See documentation in "TABLE METHODS" in SNMP::Info for details.

   Table Methods imported from SNMP::Info::Bridge
       See documentation in "TABLE METHODS" in SNMP::Info::Bridge for details.

   Table Methods imported from SNMP::Info::Entity
       See documentation in "TABLE METHODS" in SNMP::Info::Entity for details.

perl v5.12.4							    2011-09-28							 Info::Layer2(3pm)