Hi Alfredo: I came across this PF_RING blog that seems to be close to what i'm looking for. But the tar ball is no longer available. It will be nice to have the 12 bytes of timestamp tagged on the incoming traffic, I just want to figure out how to do it...
http://www.ntop.org/pf_ring/remote-nsec-timestamps-using-pf_ring-and-cpacket-devices/ Much Thanks Morgan Yang On Thu, Sep 25, 2014 at 2:36 PM, Morgan Yang <[email protected]> wrote: > Hi Alfredo: > > I just want to describe my use case. I have a machine with 16 Intel 10G > interfaces, basically serving as a pcap recorder. I can record alot of > packets but I'm interested in having better timestamp resolution on the > packets, right now they are at millisecond and micro-second level. I was > wondering if hardware timestamping can be used for this scenario. The only > information I have thus far in addition to linux ptp (which i'm not sure > fits my use case) is this white paper about high resolution packet capture. > http://icai.ektf.hu/pdf/ICAI2010-vol2-pp237-245.pdf > > Much Thanks > Morgan Yang > > On Thu, Sep 25, 2014 at 10:59 AM, Morgan Yang <[email protected]> > wrote: > >> Hi Alfredo: >> >> I have the Silicom Dual NIC without the FPGA. I'm curious as intel 82599 >> MAC time stamping is listed on linux ptp's site. >> http://linuxptp.sourceforge.net/ >> >> I am, however, not clear if an explicit 1588 source is required for Linux >> PTP and Intel's hardware timestamp to operate. >> >> Much Thanks >> Morgan Yang >> >> On Thu, Sep 25, 2014 at 10:08 AM, Alfredo Cardigliano < >> [email protected]> wrote: >> >>> Hi Morgan >>> hw timestamps on 10g intel card are supported with Silicom adapters with >>> FPGA onboard. >>> >>> Alfredo >>> >>> On 25 Sep 2014, at 00:24, Morgan Yang <[email protected]> wrote: >>> >>> > Hi: >>> > >>> > It seems standard ixgbe driver supports hardware timestamping, is this >>> something that has to be enabled or is supported out of the box? I'm >>> running ixgbe 3.15.1-k packaged by Ubuntu. >>> > >>> > Much Thanks >>> > Morgan Yang >>> > _______________________________________________ >>> > Ntop-misc mailing list >>> > [email protected] >>> > http://listgateway.unipi.it/mailman/listinfo/ntop-misc >>> >>> _______________________________________________ >>> Ntop-misc mailing list >>> [email protected] >>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >>> >> >> >
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