Info::Layer2::Baystack(3)

NAME
SNMP::Info::Layer2::Baystack - SNMP Interface to Nortel Ethernet (Baystack) Switches

AUTHOR
Eric Miller

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

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

DESCRIPTION
Provides abstraction to the configuration information obtainable from a Nortel Ethernet Switch (Baystack) through SNMP.

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

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

  Inherited Classes

SNMP::Info::SONMP
SNMP::Info::NortelStack
SNMP::Info::RapidCity
SNMP::Info::LLDP
SNMP::Info::Layer3

  Required MIBs

  Inherited MIBs
See "Required MIBs" in SNMP::Info::SONMP for its MIB requirements.

See "Required MIBs" in SNMP::Info::NortelStack for its MIB requirements.

See "Required MIBs" in SNMP::Info::RapidCity for its MIB requirements.

See "Required MIBs" in SNMP::Info::LLDP for its MIB requirements.

See "Required MIBs" in SNMP::Info::Layer3 for its MIB requirements.

GLOBALS
These are methods that return scalar value from SNMP

$baystack->vendor()
    Returns 'nortel'

$baystack->model()
    Cross references $baystack->id() to the SYNOPTICS-MIB and returns the results. 303s and 304s have the same ID, so we have a hack to return depending on which it is.

    Returns BPS for Business Policy Switch

    For others extracts and returns the switch numeric designation.

$baystack->os()
    Returns 'baystack' or 'boss' depending on software version.

$baystack->os_bin()
    Returns the firmware version extracted from "sysDescr".

  Overrides

$baystack->index_factor()
    Required by SNMP::Info::SONMP. Number representing the number of ports reserved per slot within the device MIB.

    Index factor on the Baystack switches are determined by the formula: Index Factor = 64 if (model = 470 or (os eq 'boss' and operating in pure mode)) or else Index factor = 32.

    Returns either 32 or 64 based upon the formula.

  Global Methods imported from SNMP::Info::SONMP
See "GLOBALS" in SNMP::Info::SONMP for details.

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

  Global Methods imported from SNMP::Info::RapidCity
See "GLOBALS" in SNMP::Info::RapidCity for details.

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

  Globals imported from SNMP::Info::Layer3
See "GLOBALS" in SNMP::Info::Layer3 for details.

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

  Overrides

$baystack->interfaces()
    Returns reference to the map between IID and physical Port.

      Slot and port numbers on the Baystack switches are determined by the
      formula:

      port = (Interface index % Index factor)
      slot = (int(Interface index / Index factor)) + Slot offset

      The physical port name is returned as slot.port.

$baystack->i_ignore()
    Returns reference to hash of IIDs to ignore.

$baystack->i_mac()
    Returns the "ifPhysAddress" table entries.

    Removes all entries matching '00:00:00:00:00:00' -- Certain revisions of Baystack firmware report all zeros for each port mac.

$baystack->i_name()
    Crosses "ifName" with "ifAlias" and returns the human set port name if exists.

$poe->peth_port_ifindex()
    Maps the "pethPsePortTable" to "ifIndex" by way of the ENTITY-MIB.

  ENTITY-MIB Information
For older devices which do not support ENTITY-MIB, these methods emulate Physical Table methods using S5-CHASSIS-MIB. See "TABLE METHODS" in SNMP::Info::NortelStack for details on ns_e_* methods.

$baystack->e_index()
    If the device doesn't support "entPhysicalDescr", this will try ns_e_index(). Note that this is based on "entPhysicalDescr" due to implementation details of SNMP::Info::Entity::e_index().

$baystack->e_class()
    If the device doesn't support "entPhysicalClass", this will try ns_e_class().

$baystack->e_descr()
    If the device doesn't support "entPhysicalDescr", this will try ns_e_descr().

$baystack->e_name()
    If the device doesn't support "entPhysicalName", this will try ns_e_name().

$baystack->e_fwver()
    If the device doesn't support "entPhysicalFirmwareRev", this will try ns_e_fwver().

$baystack->e_hwver()
    If the device doesn't support "entPhysicalHardwareRev", this will try ns_e_hwver().

$baystack->e_parent()
    If the device doesn't support "entPhysicalContainedIn", this will try ns_e_parent().

$baystack->e_pos()
    If the device doesn't support "entPhysicalParentRelPos", this will try ns_e_pos().

$baystack->e_serial()
    If the device doesn't support "entPhysicalSerialNum", this will try ns_e_serial().

$baystack->e_swver()
    If the device doesn't support "entPhysicalSoftwareRev", this will try ns_e_swver().

$baystack->e_type()
    If the device doesn't support "entPhysicalVendorType", this will try ns_e_type().

$baystack->e_vendor()
    If the device doesn't support "entPhysicalMfgName", this will try ns_e_vendor().

  Topology information
Based upon the software version devices may support SynOptics Network Management Protocol (SONMP) and Link Layer Discovery Protocol (LLDP). These methods will query both and return the combination of all information. As a result, there may be identical topology information returned from the two protocols causing duplicate entries. It is the calling program's responsibility to identify any duplicate entries and remove duplicates if necessary.

$baystack->hasCDP()
    Returns true if the device is running either SONMP or LLDP.

$baystack->c_if()
    Returns reference to hash. Key: iid Value: local device port (interfaces)

$baystack->c_ip()
    Returns reference to hash. Key: iid Value: remote IPv4 address

    If multiple entries exist with the same local port, c_if(), with the same IPv4 address, c_ip(), it may be a duplicate entry.

    If multiple entries exist with the same local port, c_if(), with different IPv4 addresses, c_ip(), there is either a non-SONMP/LLDP device in between two or more devices or multiple devices which are not directly connected.

    Use the data from the Layer2 Topology Table below to dig deeper.

$baystack->c_port()
    Returns reference to hash. Key: iid Value: remote port (interfaces)

$baystack->c_id()
    Returns reference to hash. Key: iid Value: string value used to identify the chassis component associated with the remote system.

$baystack->c_platform()
    Returns reference to hash. Key: iid Value: Remote Device Type

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

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

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

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

  Table Methods imported from SNMP::Info::Layer3
See "TABLE METHODS" in SNMP::Info::Layer3 for details.