NAME

SNMP::Info::Layer3 - Perl5 Interface to network devices using Layer3

DESCRIPTION

Provides generic methods for accessing SNMP data for Layer 3 network devices. Includes support for Layer2+3 devices. See super classes for other inherited methods.

Inherits from:

SNMP::Info
SNMP::Info::Bridge
SNMP::Info::CDP
SNMP::Info::EtherLike

Required MIBs:

ENTITY-MIB         - For model identification
CISCO-PRODUCTS-MIB - For model identification
HP-ICF-OID         - For model identification
MIBS listed in SNMP::Info::CDP, SNMP::Info::Bridge, and SNMP::Info::Etherlike

Cisco MIBs can be found at ftp://ftp.cisco.com/pub/mibs/v2/v2.tar.gz

HP MIBs can be found at http://www.hp.com/rnd/software

AUTHOR

Max Baker (max@warped.org)

SYNOPSIS

my $l3 = new SNMP::Info::Layer3(DestHost  => 'router' , 
                             Community => 'public' ); 

CREATING AN OBJECT

new SNMP::Info::Layer3()

Arguments passed to new() are passed on to SNMP::Session::new()

my $l3 = new SNMP::Info::Layer3(
    DestHost => $host,
    Community => 'public',
    Version => 3,...
    ) 
die "Couldn't connect.\n" unless defined $l3;

$l3->session()

Sets or returns the SNMP::Session object

# Get
my $sess = $l3->session();

# Set
my $newsession = new SNMP::Session(...);
$l3->session($newsession);

GLOBALS

$l3->mac()

Returns root port mac address

(ifPhysAddress.1)

$l3->chassis()

Returns Chassis type (model).

(entPhysicalDescr.1)

$l3->serial()

Trys to cull a serial number from $l3->chassis()

$l3->model()

Trys to reference $l3->id() to one of the product MIBs listed above

Removes 'cisco' from cisco devices for readability.

$l3->vendor()

Trys to cull a Vendor name from sysDescr

TABLE ENTRIES

Overrides

$l3->interfaces()

Returns the map between SNMP Interface Identifier (iid) and physical port name.

Only returns those iids that have a description listed in $l3->i_description()

$l3->i_ignore()

Returns reference to hash. Creates a key for each IID that should be ignored.

Currently looks for tunnel,loopback,lo,null from $l3->interfaces()

$l3->i_name()

Returns reference to hash of iid to human set name.

Defaults to ifName, but checks for an ifAlias

$l3->i_duplex()

Returns reference to hash of iid to current link duplex setting.

Maps $l3->el_index() to $l3->el_duplex, then culls out full,half, or auto and sets the map to that value.

see SNMP::Info::Etherlike for the el_index() and el_duplex() methods.

ARP Cache Entries

$l3->at_index()

Returns reference to map of IID to Arp Cache Entry

(atIfIndex)

$l3->at_paddr()

Returns reference to hash of Arp Cache Entries to MAC address

(atPhysAddress)

$l3->at_netaddr()

Returns reference to hash of Arp Cache Entries to IP Address

(atNetAddress)