- * Visibility into inter-VM communication via NetFlow, SPAN, and RSPAN
- * Standard 802.1Q VLAN model with trunking
- * Per VM policing
- * NIC bonding with source-MAC load balancing
- * Kernel-based forwarding
- * Support for OpenFlow
- * Compatibility layer for the Linux bridging code
-
-Open vSwitch supports Linux 2.6.15 and up, with testing focused on
-2.6.18 with Centos and Xen patches and version 2.6.26 from kernel.org.
-Open vSwitch also has special support for Citrix XenServer hosts.
+ * Standard 802.1Q VLAN model with trunk and access ports
+ * NIC bonding with or without LACP on upstream switch
+ * NetFlow, sFlow(R), and mirroring for increased visibility
+ * QoS (Quality of Service) configuration, plus policing
+ * GRE, GRE over IPSEC, CAPWAP, and VXLAN tunneling
+ * 802.1ag connectivity fault management
+ * OpenFlow 1.0 plus numerous extensions
+ * Transactional configuration database with C and Python bindings
+ * High-performance forwarding using a Linux kernel module
+
+The included Linux kernel module supports Linux 2.6.18 and up, with
+testing focused on 2.6.32 with Centos and Xen patches. Open vSwitch
+also has special support for Citrix XenServer and Red Hat Enterprise
+Linux hosts.
+
+Open vSwitch can also operate, at a cost in performance, entirely in
+userspace, without assistance from a kernel module. This userspace
+implementation should be easier to port than the kernel-based switch.
+It is considered experimental.