After a few months of work, I’m happy to announce Cisco has contributed the LISP protocol upstream into the Open vSwitch project. LISP is an open protocol developed by the IETF LISP Working Group. By getting LISP upstream into Open vSwitch, Cisco is continuing it’s tradition of enabling Open Standards by contributing to Open Source projects. What makes LISP interesting in the context of Open vSwitch is the fact it’s a pure L3 tunneling technology, the first in Open vSwitch. The current LISP code in Open vSwitch requires the use of static LISP tunnel endpoints. The instructions in the README file detail how to configure and use LISP tunnels in Open vSwitch. We have plans to remove the requirement for the static tunnels going forward. But for now, people who would like to experiment with LISP tunnels in Open vSwitch can use git to pull the latest master and give it a try. Feedback on the Open vSwitch dev mailing list is appreciated!