Try this if you need to use regexp ;-) Following code will create two-dimensional array from your data. Header is skipped and line with dashes (delimiter between header and data) is used for regexp pattern creation.

#!/usr/bin/perl -w
#

use strict;
use warnings;
use Data::Dumper;

my @data;
my $data = 0;
my $line;
my @size;
my $re;

while ($line = <DATA>) {
        chomp $line;                    # remove EOL
        next if ($line =~ /^\s*$/);     # skip empty lines if any
        if ($data) {                    # process data using regexp
                push @data, [ map { s/(^\s+|\s+$)//; $_ } ($line =~ /$
+re/) ];
        } elsif ($line =~ /^-/) {       # create regexp from pattern
                $data = 1;              # end of header
                @size   = map { length } split(/\s+/, $line);
                pop @size;
                $re     = '^' . join(' ', map { "(.{$_})" } @size) . '
+ (.*)';
        }
}

print Data::Dumper::Dumper(\@data);

__DATA__
Port         Alias            Oper     Admin   Speed  Duplex  Type
             (truncated)      Status   Status  (bps)
------------ ---------------- -------- ------- ------ ------- --------
+----------
vlan.0.4094                   up       up                     other
host.0.1                      up       up       10.0M         other
ge.1.1                        down     up       10.0M half    10-t    
+     rj45
ge.1.2                        down     up       10.0M half    10-t    
+     rj45
ge.1.3                        down     up       10.0M half    10-t    
+     rj45
ge.1.4                        down     up       10.0M half    10-t    
+     rj45
ge.1.5                        down     up       10.0M half    10-t    
+     rj45
[download]

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