[AusNOG] SRX650 J-flow sampling rate

[Mark Anthony Delfin]

Thanks Roland

>NetFlow v9 is necessary for IPv6 and for MPLS support - don't know if
those apply in your environment.
Not at the moment.

>Performing management tasks and exporting flow telemetry inline in your
production network runs the risk of losing the ability to control and to
observe your network during a network partition event, network congestion
event (DDoS, etc.), and so forth.

Thanks for this.  The collector is on a separate interface/subnet  from the
production but no OOB access yet on it.

>Why only one interface?  You want to get both inbound and outbound
traffic, yes?
For now, I only require to monitor the internet interface and just to  see
if the SRX650 can handle it.







On Thu, May 8, 2014 at 8:46 PM, Dobbins, Roland <rdobbins at arbor.net> wrote:

>
> On May 8, 2014, at 5:22 PM, Mark Anthony Delfin <mark at delfin.me> wrote:
>
> > 4x GE Base PIC and 16x GE gPIM
>
> My understanding is that in order to get NetFlow v9, and to get a lower
> sampling ratio, you need a services PIC (I'm not a Juniper person, clue
> welcome!).
>
> NetFlow v9 is necessary for IPv6 and for MPLS support - don't know if
> those apply in your environment.
>
> > ManageEngine Netflow (currently on trial version)
>
> What's the flows-per-second rating of the ManageEngine box?
>
> > None
>
> You should have OOB connectivity for lots of reasons, including flow
> telemetry export.  Performing management tasks and exporting flow telemetry
> inline in your production network runs the risk of losing the ability to
> control and to observe your network during a network partition event,
> network congestion event (DDoS, etc.), and so forth.
>
> > I plan to enable it  on one interface average 50 mbps peaking at 200 mbps
>
> Why only one interface?  You want to get both inbound and outbound
> traffic, yes?
>
> -----------------------------------------------------------------------
> Roland Dobbins <rdobbins at arbor.net> // <http://www.arbornetworks.com>
>
>           Luck is the residue of opportunity and design.
>
>                        -- John Milton
>
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