Hi, Peter. Thanks for writing this up. To integrate with hardware, implementors are better off looking at the set_netflow() function in "ofproto/private.h". The dpif interface is generally for software implementations that are able to do faster lookups based on exact-match entries; it is an instance of an ofproto that creates exact-match flows. Generally, hardware vendors are going to be creating their own ofproto instances that make use of wildcarded flows that make better use of TCAMs.
--Justin On Jun 10, 2011, at 9:47 AM, Peter Phaal wrote: > On Sun, May 29, 2011 at 11:35 PM, Justin Pettit <jpet...@nicira.com> wrote: >> >> We have seen an interest from vendors in bringing Open vSwitch's features to >> hardware switches. To that end, our current "master" branch will be the >> basis of a 1.2.x series of releases. The focus of which is a new datapath >> abstraction layer that simplifies porting Open vSwitch to switching ASICs. >> For those of you interested in understanding how this works, please look at >> the PORTING document: >> >> http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob;f=PORTING >> >> Thanks and enjoy! >> >> --The Open vSwitch Team >> > > For anyone porting Open vSwitch to hardware platforms, most switch > hardware includes support for sFlow traffic monitoring so integrating > this functionality with Open vSwitch is relatively straightforward. > > The following document identifies the Open vSwitch API's involved in > integrating sFlow support: > > http://blog.sflow.com/2011/06/hardware-support-for-open-vswitch.html > > If you are porting Open vSwitch to a wireless platform, you might also > want to look at implementing the sFlow wireless extensions: > > http://blog.sflow.com/2010/08/wireless.html > > Looking at the big picture. Combining the scalable traffic monitoring > of sFlow with the fine grain traffic controls of OpenFlow creates > interesting opportunities for adaptive load balancing and traffic > shaping within the software defined network: > > http://blog.sflow.com/2011/05/openflow-and-sflow.html > > Cheers, > Peter _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
