[c-nsp] netflow on native 6509

[Alex Rubenstein]

Since I have written this, I spent about 5 hours experimenting.

I have found the following:

If you enable mls nde with:

mls flow ip interface-full
mls nde sender version 5
mls nde interface
ip flow-export version 5 origin-as
ip flow-export destination [collector] [port]

every flow across every interface will be sent to the collector.

HOWEVER, once you enter this global command:

mls sampling packet-based x y

No flows, I repeat, NO FLOWS are sent to the collector. I tested this 
extensively.

As soon as you enter the following on an interface:

interface Blah4/5
  mls netflow sampling

Sampled netflow, at the rate defined in the global command, begins to flow 
to the collector, ONLY FOR THE INTERFACES enabled on. And, only in the 
inbound aspect.

Anyone else confirm this behavior?






On Fri, 25 Nov 2005, Oliver Boehmer \(oboehmer\) wrote:

> Alex Rubenstein <> wrote on Friday, November 25, 2005 3:15 AM:
>
>> Hello,
>>
>> Sup2, MSFC2, 12.1.26E Native (no CatOS).
>>
>> Fairly simple question. Running mls nde, is it globally on all
>> interfaces only, or can you enable/disable mls nde per interface?
>
> it is enabled globally for all interfaces on this platform/IOS release,
> so you need to filter the flows on the collector..
>
> 	oli
>

-- 
Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net