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diff --git a/docs/setupservicevm/index.rst b/docs/setupservicevm/index.rst
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+++ b/docs/setupservicevm/index.rst
@@ -3,19 +3,25 @@ Setting Up a Service VM as an IPv6 vRouter
==========================================
:Project: IPv6, http://wiki.opnfv.org/ipv6_opnfv_project
-:Editors: Bin Hu (AT&T)
-:Authors: Bin Hu (AT&T), Sridhar Gaddam (RedHat)
+:Editors: Bin Hu (AT&T), Sridhar Gaddam (RedHat)
+:Authors: Sridhar Gaddam (RedHat), Bin Hu (AT&T)
-:Abstract: This document provides the users with installation guidelines to create a Service VM as
- an IPv6 vRouter in OPNFV environment, i.e. integrated OpenStack with Open Daylight
- environment. There are three scenarios. Scenario 1 is pre-OPNFV environment, i.e. a native
- OpenStack environment without Open Daylight Controller. Scenario 2 is an OPNFV environment
- where OpenStack is integrated with Open Daylight Official Lithium Release which not only
- does not support IPv6 L3 Routing but also has a bug in net-virt provider implementation
- that throws Java exception. Scenario 3 is similar to Scenario 2. However, Open Daylight
- Lithium is patched with a fix of Java exception. The complete set of instructions walk
- you through every step of preparing the infrastructure, setting up Open Daylight and
- OpenStack, creating service VM and IPv6 subnet, and testing and validating the setup.
+:Abstract:
+
+This document provides the users with installation guidelines to create a Service VM as
+an IPv6 vRouter in OPNFV environment, i.e. integrated OpenStack with Open Daylight
+environment. There are three scenarios.
+
+* Scenario 1 is pre-OPNFV environment, i.e. a native OpenStack environment
+without Open Daylight Controller.
+* Scenario 2 is an OPNFV environment where OpenStack is integrated with
+Open Daylight Official Lithium Release. In this setup we use ODL for "Layer 2 connectivity"
+and Neutron L3 agent for "Layer 3 routing". Because of a bug, which got fixed recently
+and is not part of ODL SR3, we will have to manually execute certain commands to simulate
+an external IPv6 Router in this setup.
+* Scenario 3 is similar to Scenario 2. However, we use an Open Daylight Lithium
+controller which is built from the latest stable/Lithium branch which includes the fix.
+In this scenario, we can fully automate the setup similar to Scenario 1.
.. toctree::
:numbered: