Added quick start
In addition
- Added supported topology diagrams
- Updated quick start with Stratum tutorial
- Fixed a link error
Change-Id: I1db3f81b406dc991db191ccdfed2b30bb570d6bc
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+Quick Start
+***********
+
+Trellis in a Box
+----------------
+`Trellis in a Box (TiaB) <https://github.com/opennetworkinglab/routing/tree/master/trellis>`_ is a software emulated environment that allows people to run Trellis without hardware switches.
+TiaB comes with a few Mininet scripts that emulate various network topologies from a **simple 2x2 leaf-spine** to a **full multi-stage** fabric.
+The configurations corresponding to each topology are also packaged together such that you can start the environment right away.
+
+Currently TiaB only emulates the data plane, meaning that you will have to run ONOS separately.
+We plan to integrate the control plane (ONOS) in the future.
+
+
+Trellis with Stratum
+--------------------
+There is another tutorial of `How to Use Trellis with Stratum Switches <https://github.com/stratum/stratum/tree/master/tools/mininet/examples/trellis>`_.
+This is also a software emulated environment similar to TiaB. But unlike TiaB, this tutorial uses ``stratum-bmv2`` to emulate the data plane switches instead of ``ovs``.
+
+This tutorial focuses more on Trellis and Stratum integration and therefore only demonstrates a **simple 2x2 leaf-spine** topology.