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Table of contents:

What OpenFlow Controllers are supported by netloc?
How do I discover the topology of an Ethernet network using OpenFlow?

1. What OpenFlow Controllers are supported by netloc?

We currently support the following OpenFlow controllers:

OpenDaylight
http://www.opendaylight.org/
Cisco eXtensible Network Controller (XNC)
http://www.cisco.com/web/solutions/netsys/CiscoLive/xnc/index.html
Floodlight (v0.90)
http://www.projectfloodlight.org/floodlight/

2. How do I discover the topology of an Ethernet network using OpenFlow?

There are a few tools involved in discovering the topology of an Ethernet network managed with an OpenFlow controller. The following README provides more information about this process:
README.openflow