From cf20516682d0991536bfa33de1748a48115ffb06 Mon Sep 17 00:00:00 2001
From: jbjohnso <jbjohnso@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Thu, 17 Apr 2008 18:58:45 +0000
Subject: [PATCH] Fix nbroot discovery broadcast domain collision semantics

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1113 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 xCAT-nbroot/overlay/bin/dodestiny | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xCAT-nbroot/overlay/bin/dodestiny b/xCAT-nbroot/overlay/bin/dodestiny
index 15e1094a5..f6da62be5 100755
--- a/xCAT-nbroot/overlay/bin/dodestiny
+++ b/xCAT-nbroot/overlay/bin/dodestiny
@@ -101,7 +101,7 @@ while :; do
          MYB=`ifconfig $nic|grep "Bcast"|awk '{print $3}'|awk -F: '{print $2}'`
          for dnic in `ifconfig -a|grep HWaddr|grep -v sit|awk '{print $1}'|grep -v $nic`; do
             OTB=`ifconfig $dnic|grep "Bcast"|awk '{print $3}'|awk -F: '{print $2}'`
-            if [ "$OTB" == "$MYB" ]; then # if broadcasts match, down the other nic
+            if [ ! -z "$MYB" -a "$OTB" == "$MYB" ]; then # if broadcasts match, down the other nic
                ifconfig $dnic down
             fi
          done