From 4fed6d751ae4f3189b9ed974ace51a10f8f957fd Mon Sep 17 00:00:00 2001
From: Casandra Qiu <cxhong@us.ibm.com>
Date: Wed, 4 May 2016 11:24:27 -0400
Subject: [PATCH] Use version_cmp() to compare the version number

---
 xCAT-server/lib/xcat/plugins/switchdiscover.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xCAT-server/lib/xcat/plugins/switchdiscover.pm b/xCAT-server/lib/xcat/plugins/switchdiscover.pm
index 80fa858d2..1e1a70375 100644
--- a/xCAT-server/lib/xcat/plugins/switchdiscover.pm
+++ b/xCAT-server/lib/xcat/plugins/switchdiscover.pm
@@ -836,7 +836,7 @@ sub snmp_scan {
     # command.
     # for version 4.75, the line as :"Host 10.4.25.1 appears to be up ... good."
     # other higher version has line like this: "Discovered open port 161/udp on 10.4.25.1"
-    if ($nmap_version <= 4.75) {
+    if (xCAT::Utils->version_cmp($nmap_version,"4.75") <= 0) {
         $ccmd = "/usr/bin/nmap -P0 -v -sU -p 161 -oA snmp_scan @$ranges | grep up | grep good ";    
     } else {
         $ccmd = "/usr/bin/nmap -P0 -v -sU -p 161 -oA snmp_scan @$ranges | grep 'open port 161' ";