Perl Monks of wisdom,
This is my first post, as I am a complete perl novice. I have written a script utilizing the Net:Snmp module to query load balancing switches. Could some of you please comment on the coding style with suggestions on brevity, alterations and the like? Any comments are greatly appreciated. 
#!/usr/bin/perl -w
use NET::SNMP;
use strict;
use vars qw($session $error $response $syscontact $table $oid);

Usage() unless(defined $ARGV[0]);
Usage() unless(defined $ARGV[1]);

($session, $error) = Net::SNMP->session(
    -hostname => $ARGV[0],
    -community => $ARGV[1]
);

die "session error: $error" unless ($session);

my $tableid = "1.3.6.1.4.1.1991.1.1.4.6.1.1";
$table = $session->get_table($tableid);
die "request error: ".$session->error unless (defined $table);
foreach $oid (keys %$table) {
 if ($oid=~/1.3.6.1.4.1.1991.1.1.4.6.1.1.4.[0-9]+/) {
   my @digits = split (/\./, $oid);
   my $enddig = $digits[-1];
   my $rsportoid = "1.3.6.1.4.1.1991.1.1.4.6.1.1.5.$enddig";
   my $vsnameoid = "1.3.6.1.4.1.1991.1.1.4.6.1.1.2.$enddig";
   my $vsportoid = "1.3.6.1.4.1.1991.1.1.4.6.1.1.3.$enddig";
   print "Real server ".$table->{"$oid"}.", port ".$table->{"$rsportoi
+d"}.", is bound to virtual server ".$table->{"$vsnameoid"}.", on port
+ ".$table->{"$vsportoid"}."\n";
    }
}

$syscontact = $session->get_request("1.3.6.1.2.1.1.4.0");
die "request error: ".$session->error unless (defined $syscontact);
print "For help or questions contact: ".$syscontact->{"1.3.6.1.2.1.1.4
+.0"}."\n";

$session->close;

sub Usage{
 print(
   "\n",
   "  You didn't provide target hostname or IP address and community s
+tring!\n",
   "  Usage: snmp1.pl host_ip|name community_string\n",
   "  Net::SNMP       $Net::SNMP::VERSION\n");
   exit 1;
   }

[download]
Thank you for your time,
Jer

In reply to Net::Snmp Attempt by Jer

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