add arp cmd; always return lists from checkLog

The arp CLI command sends gratuitous ARPs from all hosts - this
makes it easier for ONOS to discover hosts.

Previously checkLog returned None, None if the log file didn't
exist; now we return an empty list, to avoid breaking when we
take the len() of errors or warnings (which was happening before)
and to avoid having to check for None, None, which didn't seem to
add a lot of value to justify its complexity.

Change-Id: I84847fcf70525c82ac037d8a84cf40d21ab2a106
1 file changed
tree: bf626b29ec9bd5e760c0c9e82856920ff00e8abf
  1. .buckconfig
  2. .gitignore
  3. .gitreview
  4. BUCK
  5. LICENSE.txt
  7. apps/
  8. buck-tools/
  9. bucklets/
  10. cli/
  11. core/
  12. docs/
  13. drivers/
  14. features/
  15. incubator/
  16. lib/
  17. pom.xml
  18. protocols/
  19. providers/
  20. tools/
  21. utils/
  22. web/

ONOS : Open Network Operating System

What is ONOS?

ONOS is a new SDN network operating system designed for high availability, performance, scale-out.

Top-Level Features

  • High availability through clustering and distributed state management.
  • Scalability through clustering and sharding of network device control.
  • Performance that is good for a first release, and which has an architecture that will continue to support improvements.
  • Northbound abstractions for a global network view, network graph, and application intents.
  • Pluggable southbound for support of OpenFlow and new or legacy protocols.
  • Graphical user interface to view multi-layer topologies and inspect elements of the topology.
  • REST API for access to Northbound abstractions as well as CLI commands.
  • CLI for debugging.
  • Support for both proactive and reactive flow setup.
  • SDN-IP application to support interworking with traditional IP networks controlled by distributed routing protocols such as BGP.
  • IP-Optical use case demonstration.

Checkout out our website and our tools