Hi, a proper hardware implementation should not increase the processing time when increasing the number of wildcards. The matching should be done with TCAMs, which match bit fields with and without wildcards in O(1). For details read e.g. this: http://www.sdncentral.com/products-technologies/sdn-openflow-tcam-need-to-know/2012/07/
Cheers Jeremias 2013/5/3 Philip Wette <we...@mail.upb.de> > Hello, > > Are there any measurements (done on real hardware) on the relationship of > the number of installed wildcard entries a switch is populated with and the > resulting data rate / latency? > I could imagine that with increasing number of inserted wildcard entries, > the processing time of a packet is massively increased? > > best Regards, > > Philip > > -- > Philip Wette, M.Sc. E-Mail: we...@mail.upb.de > University of Paderborn Tel.: 05251 / 60-1716 > Department of Computer Science > Computer Networks Group http://wwwcs.upb.de/cs/ag-karl > Warburger Straße 100 Room: O3.152 > 33098 Paderborn > > ______________________________**_________________ > openflow-discuss mailing list > openflow-discuss@lists.**stanford.edu<openflow-discuss@lists.stanford.edu> > https://mailman.stanford.edu/**mailman/listinfo/openflow-**discuss<https://mailman.stanford.edu/mailman/listinfo/openflow-discuss> >
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