[sFlow] Re: sFlow and OpenFlow

2009-10-14 Thread Ben Pfaff
"Peter Phaal" writes: > The following structure would add the needed support to sFlow: > > /* Extended OpenFlow data */ > /* opaque = flow_data; enterprise = 0; format = 1017 */ > > struct extended_openflow { > opaque flow_cookie[8]; > } It seems likely that OpenFlow will add the flow cookie

RE: [sFlow] Re: sFlow and OpenFlow

2009-10-14 Thread Peter Phaal
> > The following structure would add the needed support to sFlow: > > > > /* Extended OpenFlow data */ > > /* opaque = flow_data; enterprise = 0; format = 1017 */ > > > > struct extended_openflow { > > opaque flow_cookie[8]; > > } > > It seems likely that OpenFlow will add the flow cookie as an

Re: [sFlow] Re: sFlow and OpenFlow

2009-10-14 Thread Ben Pfaff
"Peter Phaal" writes: > Here is a new definition for the Extended OpenFlow structure that better > addresses your points: This looks good to me. Since OpenFlow is not a final standard, it would be good to either specify a particular version of OpenFlow (in case the bit fields change in later ve

RE: [sFlow] Re: sFlow and OpenFlow

2009-10-14 Thread Peter Phaal
> Since OpenFlow is not a final standard, it would be good to > either specify a particular version of OpenFlow (in case the bit > fields change in later versions) or to somehow include a version > number in the packet. I would assume that most changes to the bit fields would be additive in order

[sFlow] sFlow, CEE and FCoE

2009-10-14 Thread Peter Phaal
sFlow is currently able to report on FCoE traffic since fiber channel addresses, message types and traffic volumes can all be obtained by decoding and analyzing the sampled packet headers. However, fiber channel has its own forwarding logic and the addition of an extended flow structure to capture