Question

我有以下输出：

dis vlan 100
VLAN ID: 100
VLAN Type: static
Route Interface: configured
IP Address: x.x.x.
Subnet Mask: y.y.y.y
Description: Text
Name: SomeMoreText
Tagged   Ports:
Bridge-Aggregation1      Bridge-Aggregation2      Bridge-Aggregation3
Bridge-Aggregation6
Ten-GigabitEthernet1/0/18
Ten-GigabitEthernet1/0/20
Ten-GigabitEthernet1/0/21
Untagged Ports:
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2

我正在尝试将哪些端口知道到vlan以及以何种方式（已标记或未标记）。我在确定端口是标记还是未标记时遇到了一些问题。代码：

foreach my $specificVlanLine (split "\n",$getSpecificVlanValue){
    chomp $specificVlanLine ;
    if ( $specificVlanLine =~ m/dis vlan/ ){
        #do nothing
    } else {
        if ( index($specificVlanLine, ":" ) != -1) {
            my @specificVlanSplit = split(":", $specificVlanLine) ;
            $specificVlanSplit[0] =~ s/\s+//g;
            $data{$vlanID}{$specificVlanSplit[0]} = $specificVlanSplit[1] ;
        } elsif ( $specificVlanLine =~ m/\d+\/\d+\/\d+/ ) {
            $specificVlanLine =~ s/\s+//g;
            $data{$vlanID}{"TaggedPorts"} .= "$specificVlanLine \n" ;
    }
}

$getSpecificVlanValue是我开始提出这个问题的完整输出。

问题是每个接口都放在taggedPorts中。这是有道理的，但我如何确定哪个以太网端口是Tagged，哪个是Untagged？

TaggedPorts' => 'Ten-GigabitEthernet1/0/18
  Ten-GigabitEthernet1/0/20
  Ten-GigabitEthernet1/0/21
  Ten-GigabitEthernet2/0/18
  Ten-GigabitEthernet1/0/1
  Ten-GigabitEthernet1/0/2

预期产出：

TaggedPorts' => 'Ten-GigabitEthernet1/0/18
  Ten-GigabitEthernet1/0/20
  Ten-GigabitEthernet1/0/21
  Ten-GigabitEthernet2/0/18
UntaggedPorts' => 'Ten-GigabitEthernet1/0/1
  Ten-GigabitEthernet1/0/2

Answer 1

一种方式：

#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
$\="\n";

sub getEmptyIfNull{
    my $val = shift;
    if (not defined $val){
        return "";
    }else{
        return $val . "\n";
    }
}


my %data;
my ($tagged,$untagged)=("","");
while(<DATA>){
    chomp;
    if (/^Tagged/){
        $tagged="Y";
        $untagged="N";
    }elsif (/^Untagged/){
        $untagged="Y";
        $tagged="N";
    }

    if (/\d+\/\d+\/\d+/){
        if ($tagged eq "Y"){
            $data{"Tagged"} = getEmptyIfNull($data{"Tagged"}) . $_;
        }elsif ($untagged eq "Y"){
            $data{"Untagged"} = getEmptyIfNull($data{"Untagged"}) . $_;
        }
    }
}
    print Dumper \%data;


__DATA__
dis vlan 100
VLAN ID: 100
VLAN Type: static
Route Interface: configured
IP Address: x.x.x.
Subnet Mask: y.y.y.y
Description: Text
Name: SomeMoreText
Tagged   Ports:
Bridge-Aggregation1      Bridge-Aggregation2      Bridge-Aggregation3
Bridge-Aggregation6
Ten-GigabitEthernet1/0/18
Ten-GigabitEthernet1/0/20
Ten-GigabitEthernet1/0/21
Untagged Ports:
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2

Answer 2

创建一个“flag”变量来记住端口类型（下例中的$ mode）：

#!/usr/bin/perl
use strict;
use warnings;

my $vlan_id = 'id';
my %data;

my $mode;
while (<DATA>) {
    chomp;
    if (/Tagged   Ports:/) {
        $mode = 'tagged';
    } elsif (/Untagged Ports:/) {
        $mode = 'untagged';
    } elsif (my ($key, $value) = /(.*):(.*)/) {
        $data{$vlan_id}{$key} = $value;
    } elsif (m{\d/\d+/\d} && $mode) {
        push @{ $data{$vlan_id}{$mode} }, $_;
    }
}

use Data::Dumper; print Dumper \%data;

__DATA__
dis vlan 100
VLAN ID: 100
VLAN Type: static
Route Interface: configured
IP Address: x.x.x.
Subnet Mask: y.y.y.y
Description: Text
Name: SomeMoreText
Tagged   Ports:
Bridge-Aggregation1      Bridge-Aggregation2      Bridge-Aggregation3
Bridge-Aggregation6
Ten-GigabitEthernet1/0/18
Ten-GigabitEthernet1/0/20
Ten-GigabitEthernet1/0/21
Untagged Ports:
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2

Perl哪一行属于哪个类别

2 个答案: