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Xen Summit Logo

XenSummit has been a tremendous success this year. Thank you to all the speakers for contributing and to all the attendees for making XenSummit an interactive and fun conference with lots of discussions. You can find presentations on slideshare and videos on vimeo. We will also embedded both in the agenda. The slides are also available for download as zip file.

Xen*, SDN, and Apache CloudStack

Apache CloudStack has already proven its abilities to scale to tens of thousands of physical XenServer nodes, but a number of traditional networking schemes don't work. VLANs max out at 4096, Layer3 isolation (aka Security Groups) helps scale to a degree, but you lose a lot of flexibility in the process. XCP and XS6.0 have the ability to make use of openvswitch to build software defined networks for increasing flexible networks with little or none of the legacy restrictions.


David Nalley, Apache CloudStack committer

David Nalley is a committer on the Apache CloudStack project.



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