diff --git a/manifests/compute/hypervisor.pp b/manifests/compute/hypervisor.pp
index d22fa3f0..a0aad2b4 100644
--- a/manifests/compute/hypervisor.pp
+++ b/manifests/compute/hypervisor.pp
@@ -29,11 +29,6 @@
 #   cinder volumes backend by ceph on nova instances.
 #   Default to false.
 #
-# [*manage_tso]
-#   (optional) Enable or not TSO/GSO/GRO/UFO on neutron interfaces.
-#   Should be at True when running linux kernel 3.14.
-#   Default to true.
-#
 
 class cloud::compute::hypervisor(
   $server_proxyclient_address = '127.0.0.1',
@@ -48,7 +43,6 @@ class cloud::compute::hypervisor(
   $nova_rbd_secret_uuid       = undef,
   $vm_rbd                     = false,
   $volume_rbd                 = false,
-  $manage_tso                 = true,
   # set to false to keep backward compatibility
   $ks_spice_public_proto      = false,
   $ks_spice_public_host       = false,
@@ -130,7 +124,7 @@ Host *
 
   }
 
-  if $::operatingsystem == 'RedHat' {
+  if $::osfamily == 'RedHat' {
     file { '/etc/libvirt/qemu.conf':
       ensure => file,
       source => 'puppet:///modules/cloud/qemu/qemu.conf',
@@ -145,7 +139,7 @@ Host *
     }
   } else {
     # Disabling or not TSO/GSO/GRO on Debian systems
-    if $manage_tso {
+    if $::kernelmajversion >= '3.14' {
       ensure_resource ('exec','enable-tso-script', {
         'command' => '/usr/sbin/update-rc.d disable-tso defaults',
         'unless'  => '/bin/ls /etc/rc*.d | /bin/grep disable-tso',
diff --git a/manifests/network/l3.pp b/manifests/network/l3.pp
index ec63856f..6c43d5df 100644
--- a/manifests/network/l3.pp
+++ b/manifests/network/l3.pp
@@ -46,4 +46,18 @@ class cloud::network::l3(
     debug => $debug,
   }
 
+  # Disabling or not TSO/GSO/GRO on Debian systems
+  if $::osfamily == 'Debian' and $::kernelmajversion >= '3.14' {
+    ensure_resource ('exec','enable-tso-script', {
+      'command' => '/usr/sbin/update-rc.d disable-tso defaults',
+      'unless'  => '/bin/ls /etc/rc*.d | /bin/grep disable-tso',
+      'onlyif'  => 'test -f /etc/init.d/disable-tso'
+    })
+    ensure_resource ('exec','start-tso-script', {
+      'command' => '/etc/init.d/disable-tso start',
+      'unless'  => 'test -f /tmp/disable-tso-lock',
+      'onlyif'  => 'test -f /etc/init.d/disable-tso'
+    })
+  }
+
 }
diff --git a/spec/classes/cloud_compute_hypervisor_spec.rb b/spec/classes/cloud_compute_hypervisor_spec.rb
index 0d185c1d..b66fb9de 100644
--- a/spec/classes/cloud_compute_hypervisor_spec.rb
+++ b/spec/classes/cloud_compute_hypervisor_spec.rb
@@ -83,7 +83,6 @@ describe 'cloud::compute::hypervisor' do
         :ks_spice_public_host                 => '10.0.0.2',
         :vm_rbd                               => false,
         :volume_rbd                           => false,
-        :manage_tso                           => true,
         :ks_nova_public_host                  => '10.0.0.1' }
     end
 
@@ -272,13 +271,12 @@ describe 'cloud::compute::hypervisor' do
     end
 
     context 'without TSO/GSO/GRO on Debian systems' do
-      let :facts do
-        { :osfamily        => 'Debian',
-          :operatingsystem => 'Debian',
-          :concat_basedir  => '/var/lib/puppet/concat'
-        }
+      before :each do
+        facts.merge!( :osfamily         => 'Debian',
+                      :operatingsystem  => 'Debian',
+                      :kernelmajversion => '3.14',
+                      :concat_basedir   => '/var/lib/puppet/concat' )
       end
-
       it 'ensure TSO script is enabled at boot' do
         should contain_exec('enable-tso-script').with(
           :command => '/usr/sbin/update-rc.d disable-tso defaults',
@@ -295,10 +293,10 @@ describe 'cloud::compute::hypervisor' do
       end
     end
 
-    context 'with TSO/GSO/GRO on Debian systems' do
+    context 'ensure TSO/GSO/GRO is not managed on Debian systems with kernel < 3.14' do
       before :each do
-        facts.merge!( :osfamily => 'Debian' )
-        params.merge!( :manage_tso => false )
+        facts.merge!( :osfamily         => 'Debian',
+                      :kernelmajversion => '3.12' )
       end
 
       it 'ensure TSO script is not enabled at boot' do
@@ -410,7 +408,7 @@ describe 'cloud::compute::hypervisor' do
 
     context 'when trying to enable RBD backend on RedHat plaforms' do
       before :each do
-        facts.merge!( :operatingsystem => 'RedHat' )
+        facts.merge!( :osfamily => 'RedHat' )
         params.merge!(
           :vm_rbd               => true,
           :cinder_rbd_user      => 'cinder',
@@ -422,7 +420,7 @@ describe 'cloud::compute::hypervisor' do
 
     context 'when trying to enable RBD backend with deprecated parameter on RedHat plaforms' do
       before :each do
-        facts.merge!( :operatingsystem => 'RedHat' )
+        facts.merge!( :osfamily => 'RedHat' )
         params.merge!(
           :has_ceph             => true,
           :cinder_rbd_user      => 'cinder',
diff --git a/spec/classes/cloud_network_l3_spec.rb b/spec/classes/cloud_network_l3_spec.rb
index 9a9092b3..df490f29 100644
--- a/spec/classes/cloud_network_l3_spec.rb
+++ b/spec/classes/cloud_network_l3_spec.rb
@@ -151,6 +151,42 @@ describe 'cloud::network::l3' do
         should_not contain__neutron_network('public')
       end
     end
+
+    context 'without TSO/GSO/GRO on Debian systems with 3.14 kernel' do
+      before :each do
+        facts.merge!( :osfamily         => 'Debian',
+                      :kernelmajversion => '3.14' )
+      end
+
+      it 'ensure TSO script is enabled at boot' do
+        should contain_exec('enable-tso-script').with(
+          :command => '/usr/sbin/update-rc.d disable-tso defaults',
+          :unless  => '/bin/ls /etc/rc*.d | /bin/grep disable-tso',
+          :onlyif  => 'test -f /etc/init.d/disable-tso'
+        )
+      end
+      it 'start TSO script' do
+        should contain_exec('start-tso-script').with(
+          :command => '/etc/init.d/disable-tso start',
+          :unless  => 'test -f /tmp/disable-tso-lock',
+          :onlyif  => 'test -f /etc/init.d/disable-tso'
+        )
+      end
+    end
+
+    context 'ensure TSO/GSO/GRO is not managed on Debian systems with kernel < 3.14' do
+      before :each do
+        facts.merge!( :osfamily         => 'Debian',
+                      :kernelmajversion => '3.12' )
+      end
+
+      it 'ensure TSO script is not enabled at boot' do
+        should_not contain_exec('enable-tso-script')
+      end
+      it 'do no tstart TSO script' do
+        should_not contain_exec('start-tso-script')
+      end
+    end
   end
 
   context 'on Debian platforms' do