1SNMP::Info::Layer2(3) User Contributed Perl DocumentationSNMP::Info::Layer2(3)
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NAME

6       SNMP::Info::Layer2 - SNMP Interface to network devices serving Layer2
7       only.
8

AUTHOR

10       Max Baker
11

SYNOPSIS

13        # Let SNMP::Info determine the correct subclass for you.
14        my $l2 = new SNMP::Info(
15                                 AutoSpecify => 1,
16                                 Debug       => 1,
17                                 DestHost    => 'myswitch',
18                                 Community   => 'public',
19                                 Version     => 2
20                               )
21           or die "Can't connect to DestHost.\n";
22
23        my $class      = $l2->class();
24        print "SNMP::Info determined this device to fall under subclass : $class\n";
25
26        # Let's get some basic Port information
27        my $interfaces = $l2->interfaces();
28        my $i_up       = $l2->i_up();
29        my $i_speed    = $l2->i_speed();
30        foreach my $iid (keys %$interfaces) {
31           my $port  = $interfaces->{$iid};
32           my $up    = $i_up->{$iid};
33           my $speed = $i_speed->{$iid}
34           print "Port $port is $up. Port runs at $speed.\n";
35        }
36

DESCRIPTION

38       This class is usually used as a superclass for more specific device
39       classes listed under SNMP::Info::Layer2::*   Please read all docs under
40       SNMP::Info first.
41
42       Provides abstraction to the configuration information obtainable from a
43       Layer2 device through SNMP.  Information is stored in a number of MIBs.
44
45       For speed or debugging purposes you can call the subclass directly, but
46       not after determining a more specific class using the method above.
47
48        my $l2 = new SNMP::Info::Layer2(...);
49
50   Inherited Classes
51       SNMP::Info
52       SNMP::Info::Bridge
53       SNMP::Info::DocsisHE
54       SNMP::Info::Entity
55       SNMP::Info::LLDP
56       SNMP::Info::PowerEthernet
57
58   Required MIBs
59       Inherited Classes
60           MIBs required by the inherited classes listed above.
61
62       MIBs can be found in netdisco-mibs package.
63

GLOBALS

65       These are methods that return scalar value from SNMP
66
67   Overrides
68       $l2->model()
69           Cross references $l2->id() with product IDs in the Cisco MIBs.
70
71           For HP devices, removes 'hpswitch' from the name
72
73           For Cisco devices, removes c<'sysid'> from the name
74
75       $l2->vendor()
76           Tries to discover the vendor from $l2->model() and
77           $l2->description()
78
79       $l2->serial()
80           Returns a serial number if found from ENTITY-MIB and OLD-CISCO-...
81           MIB.
82
83   Globals imported from SNMP::Info
84       See documentation in "USAGE" in SNMP::Info for details.
85
86   Globals imported from SNMP::Info::Bridge
87       See documentation in "GLOBALS" in SNMP::Info::Bridge for details.
88
89   Globals imported from SNMP::Info::Entity
90       See documentation in "GLOBALS" in SNMP::Info::Entity for details.
91
92   Globals imported from SNMP::Info::LLDP
93       See documentation in "GLOBALS" in SNMP::Info::LLDP for details.
94

TABLE METHODS

96       These are methods that return tables of information in the form of a
97       reference to a hash.
98
99   Overrides
100       $l2->interfaces()
101           Creates a map between the interface identifier (iid) and the
102           physical port name.
103
104           Defaults to "ifDescr" but checks and overrides with "ifName"
105
106   Table Methods imported from SNMP::Info
107       See documentation in "USAGE" in SNMP::Info for details.
108
109   Table Methods imported from SNMP::Info::Bridge
110       See documentation in "TABLE METHODS" in SNMP::Info::Bridge for details.
111
112   Table Methods imported from SNMP::Info::Entity
113       See documentation in "TABLE METHODS" in SNMP::Info::Entity for details.
114
115   Table Methods imported from SNMP::Info::LLDP
116       See documentation in "TABLE METHODS" in SNMP::Info::LLDP for details.
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120perl v5.34.0                      2021-09-13             SNMP::Info::Layer2(3)