At 12:13 AM 3/28/2001 -0300, Rubens Kuhl Jr. wrote:
>Besides referring me to the Brazil account team (which I already know
>about), could you elaborate on the answer ? What's the difference ?
The netflow statistics on the 7500 is gathered when you enable netflow
switching. You get information on every packet through the router. On the
GSR on on the M-series routers there is a statistical sampling done and
then the information about those sampled packets is put into netflow-format
and exported.
On the M-series you can use filters to define what packets are sampled
(syn/fin only, http only, packets from nn.nn.nn.nn only, etc), what ratio
of packets you want to sample (grab every 1/N packets) and how long a
"train" of packets to sample (1/N + X). But the router has throttles built
in all over the place such that if you define sampling that would kill the
router it will drop the information rather than dropping the router.
GK
>Rubens Kuhl Jr.
>
>
>-----Original Message-----
>From: Greg Ketell [mailto:gketell@juniper.net]
>Sent: Tuesday, March 27, 2001 8:39 PM
>To: Dmitri Kalintsev; juniper-nsp@puck.nether.net
>Subject: Re: Netflow question
>
>
>Best source is your local account team. They'd be more than happy to talk
>with you about it.
>
>Australia
> Juniper Networks Australia Limited
> Level 1, 181 Miller Street
> North Sydney, NSW 2060
> Australia
> Phone: 61-2-8913-8000
> Fax: 61-2-8913-8090
>
>Short Answer: JNPRs support Netflow v5/v8-format messaging to your existing
>Netflow analyzers but not 7500-style netflow data collection.
>
>GK
>
>At 01:09 AM 3/28/2001 +0200, Dmitri Kalintsev wrote:
> >Good day,
> >
> >Sorry if this question is ignorant, but I need a bit of information and not
> >so sure where to start looking for it. What I'm interested in particular is
> >NetFlow support on juniper M's. Reason why I'm asking is that we plan on
> >re-implementing core of our network and we're looking at different options,
> >namely GSRs and Junipers. Main question for us is to keep NetFlow
> >functionality or to have its analog, which can be easily converted into
> >NetFlow format. Can anybody point me in the right direction, where I can
> >find out about NetFlow support or its analog on Juniper routers?
> >
> >Thanks,
> >--
> > CCNP, CCDP (R&S) Dmitri E. Kalintsev
> > CDPlayer@irc Network Architect @ connect.com.au
> > dek @ connect.com.au phone: +61 39 674 3913 fax: 251 3666
> > http://-UNAVAIL- UIN:7150410 cell: +61 41 335 1634
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