[c-nsp] Nexus 7000

[James Humphris]

Lincon,

Just on the netflow point, whilst it's all very well being able to
generate a ton of netflow data export records, but has the Cisco Netflow
Collector been sufficiently scaled to deal with the sort of volumes of
traffic generated by these "next generation" platforms?

What type of hardware platform would I need to use as a collector if I
enabled netflow (or even sampled netflow) on a number of these devices
in my data centre!?!

James.


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Lincoln Dale
(ltd)
Sent: 29 January 2008 12:30
To: Ray Burkholder; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Nexus 7000

> Does it do netflow output?

yes, NetFlow export v5 and v9 (flexible netflow) export are supported.

h/w table of 512K netflow entries shared between ingress & egress on
each forwarding engine (per I/O module).

> Or sampled netflow?

yes, (true) sampled netflow is supported in h/w too.

> I suppose one would need a
> small network just to handle the netflow output of a fully traffic'd
> switch.

quite possibly!

in the initial software release the export is handled by the Supervisor
control-plane. in a maintenance release soon after, we're adding
distributed netflow export such that its exported from the control-plane
local on the I/O module.
even with the centralized model, its forseeable that there could be
substancial export rate!


cheers,

lincoln.
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