/usr/share/perl5/SNMP/Info/Layer2/ is in libsnmp-info-perl 3.39-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/SNMP/Info/Layer2/3Com.pm
/usr/share/perl5/SNMP/Info/Layer2/Airespace.pm
/usr/share/perl5/SNMP/Info/Layer2/Aironet.pm
/usr/share/perl5/SNMP/Info/Layer2/Allied.pm
/usr/share/perl5/SNMP/Info/Layer2/Baystack.pm
/usr/share/perl5/SNMP/Info/Layer2/C1900.pm
/usr/share/perl5/SNMP/Info/Layer2/C2900.pm
/usr/share/perl5/SNMP/Info/Layer2/Catalyst.pm
/usr/share/perl5/SNMP/Info/Layer2/Centillion.pm
/usr/share/perl5/SNMP/Info/Layer2/Cisco.pm
/usr/share/perl5/SNMP/Info/Layer2/CiscoSB.pm
/usr/share/perl5/SNMP/Info/Layer2/HP.pm
/usr/share/perl5/SNMP/Info/Layer2/HP4000.pm
/usr/share/perl5/SNMP/Info/Layer2/HPVC.pm
/usr/share/perl5/SNMP/Info/Layer2/Kentrox.pm
/usr/share/perl5/SNMP/Info/Layer2/N2270.pm
/usr/share/perl5/SNMP/Info/Layer2/NAP222x.pm
/usr/share/perl5/SNMP/Info/Layer2/NWSS2300.pm
/usr/share/perl5/SNMP/Info/Layer2/Netgear.pm
/usr/share/perl5/SNMP/Info/Layer2/Orinoco.pm
/usr/share/perl5/SNMP/Info/Layer2/Trapeze.pm
/usr/share/perl5/SNMP/Info/Layer2/Ubiquiti.pm
/usr/share/perl5/SNMP/Info/Layer2/ZyXEL_DSLAM.pm