Vyatta is now offering for free its Network Virtualization course, part of their Vyatta University training catalog.
The online course teaches how to install, verify and perform basic configuration of Vyatta OVF and XVA virtual appliances for adding routing and security to VMware ESX and Citrix XenServer.
You have to register to access, but considering that Vyatta is an open source router available for free, and that the course is free too, it may be well worth the effort.
Thanks to NTPRO.nl for the news.