[c-nsp] Configuring Netflow in C6500

Network Fortius netfortius at gmail.com
Wed May 25 13:40:41 EDT 2005


1. On the router, per each Vlan, we have:

interface Vlanxx
...
ip route-cache flow
...

then, at the end of all Vlan interfaces:

ip flow-export version 5 (I am using an open source solution, which  
does not work well with other vers)
ip flow-export destination <my-netflow-collector> 2055 (i.e. the port  
the collector listens to)

2. On the switch side we did:

set mls flow full
set mls bridged-flow-statistics enable <a list of my VLANs, comma  
separated>
set mls nde <IP of collector> 2055 (port of collector)
set mls agingtime long-duration 64
set mls agingtime 32
set mls agingtime ipx 32
set mls nde enable

HTH,
Stef

On May 25, 2005, at 10:54 AM, Ruben Montes wrote:

> Hello,
>
> I want to configure Netflow in a C6500 with sup720, PFC3 and MSFC3  
> with IOS 12.2(18)SXD2 to send the export information to a NAM. I've  
> been reviewing some documention but it is not very clear about what  
> is supposed I should configure. Can I enable mls netflow during  
> working hours or should I take any precaution? Netflow is only a  
> method of gathering flow data isn't it? I assume it wouldn't affect  
> the switching method the device is using (CEF,dCEF, etc): is that  
> correct?
> CAn anyone help me?
>
> Thanks in advance,
>
> Ruben



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