Info::Layer2::BaystackUser Contributed Perl DocumentaInfo::Layer2::Baystack(3)NAMESNMP::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.
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.
perl v5.14.1 2011-09-28 Info::Layer2::Baystack(3)
