Clarification: No performance limit within the port-mirroring session.
Only one port-mirroring session (interface sampling) per router is
allowed and NOT at the same time as cflowd sampling.
-- steve
> -----Original Message-----
> From: Greg Ketell [mailto:gketell@juniper.net]
> Sent: Tuesday, December 11, 2001 1:12 PM
> To: Jesper Skriver; Krishna Doddapaneni
> Cc: juniper-nsp@puck.nether.net
> Subject: Re: [j-nsp] Traffic Sampling in JunOS5.1
>
> One point of possible clarification,
>
> all of the below is accurate in regards to our Netflow sampling. But
the
> new 5.1 feature is for "packet replication" out a PFE interface which
> sends
> the entire packet and does so via the asics so doesn't have much of a
> performance limit.
>
> GK
>
> At 10:09 AM 12/11/2001, Jesper Skriver wrote:
> >On Tue, Dec 11, 2001 at 09:46:27AM -0800, Krishna Doddapaneni wrote:
> > > Hi,
> > > I was a little confused reading the Traffic Sampling
documentation.Can
> > > anyone familiar with JunOS clear my doubts.
> > > 1)When you sample Traffic does the PFE send the whole packet or
the
> > > packet header only to CPU?
> >
> >I believe it's the first jcell, that is the first 64 bytes.
> >
> > > 2)And does the CPU exist on the Linecard or RE?
> >
> >The routing engine.
> >
> > > 3)The 7000pps limit that i saw on the mailing list ..is it per Box
or
> > > per Linecard?
> >
> >pr. box.
> >
> >/Jesper
> >
> >--
> >Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456
> >Work: Network manager @ AS3292 (Tele Danmark DataNetworks)
> >Private: FreeBSD committer @ AS2109 (A much smaller network ;-)
> >
> >One Unix to rule them all, One Resolver to find them,
> >One IP to bring them all and in the zone to bind them.
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