From 79208433088434b9a7f7582e0d3b7c46f103f75e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillaume=20Oberl=C3=A9?= <goberle@ygg.tf>
Date: Wed, 28 Dec 2016 00:29:29 +0100
Subject: [PATCH] Add default MTU for the 802.1Q interface (#175)

F  #4958: Add default MTU for the 802.1Q interface
---
 src/vnm_mad/remotes/802.1Q/vlan_tag_driver.rb | 2 +-
 src/vnm_mad/remotes/OpenNebulaNetwork.conf    | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/vnm_mad/remotes/802.1Q/vlan_tag_driver.rb b/src/vnm_mad/remotes/802.1Q/vlan_tag_driver.rb
index 691ade0310..fcd4bea6f6 100644
--- a/src/vnm_mad/remotes/802.1Q/vlan_tag_driver.rb
+++ b/src/vnm_mad/remotes/802.1Q/vlan_tag_driver.rb
@@ -43,7 +43,7 @@ class VLANTagDriver < VNMMAD::VLANDriver
     # This function creates and activate a VLAN device
     ############################################################################
     def create_vlan_dev
-        mtu = @nic[:mtu] ? "mtu #{@nic[:mtu]}" : ""
+        mtu = @nic[:mtu] ? "mtu #{@nic[:mtu]}" : "mtu #{CONF[:vlan_mtu]}"
 
         OpenNebula.exec_and_log("#{command(:ip)} link add link"\
             " #{@nic[:phydev]} name #{@nic[:vlan_dev]} #{mtu} type vlan id"\
diff --git a/src/vnm_mad/remotes/OpenNebulaNetwork.conf b/src/vnm_mad/remotes/OpenNebulaNetwork.conf
index 16ae01a7eb..51e2ef5fe8 100644
--- a/src/vnm_mad/remotes/OpenNebulaNetwork.conf
+++ b/src/vnm_mad/remotes/OpenNebulaNetwork.conf
@@ -25,6 +25,13 @@
 # Enable ARP Cache Poisoning Prevention Rules
 :arp_cache_poisoning: true
 
+################################################################################
+# 802.1Q Options
+################################################################################
+
+# Default MTU for the 802.1Q interface
+:vlan_mtu: 1500
+
 ################################################################################
 # VXLAN Options
 ################################################################################