Win8 Strawberry 5.8.9.5 (32)  Thu 10/14/2021 17:41:51
C:\@Work\Perl\monks
>perl -Mstrict -Mwarnings

for my $str (
    '01/LC-13/E10GbE-1,01/LC-14/E10GbE-1',
    '01/LC-13/E10GbE-1',
    ) {
    my @m = $str =~ m{ (?<= -) \d+ }xmsg;
    print "'$str' ->";
    print "  '$_'" for @m;
    print "\n";
    }

^Z
'01/LC-13/E10GbE-1,01/LC-14/E10GbE-1' ->  '13'  '1'  '14'  '1'
'01/LC-13/E10GbE-1' ->  '13'  '1'