From 4c1ace5e02edb04c0aee8641334e8a0eb2bd5b5c Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang@citrix.com>
Date: Thu, 30 May 2013 16:53:39 -0700
Subject: [PATCH] CLOUDSTACK-2775: Fix trunk port is not 1 on some hosts

Now searching for eth- or em- prefix, as the port for going outside.
---
 scripts/vm/network/ovs-pvlan-vm.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/vm/network/ovs-pvlan-vm.sh b/scripts/vm/network/ovs-pvlan-vm.sh
index fd384814cc4..06e41fe4219 100755
--- a/scripts/vm/network/ovs-pvlan-vm.sh
+++ b/scripts/vm/network/ovs-pvlan-vm.sh
@@ -86,7 +86,8 @@ then
     exit 1
 fi
 
-trunk_port=1
+# try to find the physical link to outside, only supports eth and em prefix now
+trunk_port=`ovs-ofctl show $br | egrep "\((eth|em)[0-9]" | cut -d '(' -f 1|tr -d ' '`
 
 if [ "$op" == "add" ]
 then