[c-nsp] netflow & Sup32 with native IOS

Tim Stevenson tstevens at cisco.com
Sat Aug 5 00:53:26 EDT 2006


You need to change your h/w flow mask to something useful like "mls 
flow ip interface-full" and you need "mls nde sender version 5" to 
enable export of h/w stats. Probably you'll also want to muck w/the 
aging timers: "mls aging normal|fast|long".

Right now you're only get stats for s/w switched traffic.

Tim

At 09:24 PM 8/4/2006 -0700, matthew zeier contended:

>Is there a trick to get Netflow working on a Sup32 running native IOS?
>
>I'm using ehnt to view top destination ASNs. I have the following config and
>am getting data sent, however, the traffic counts are far below what I'm
>actually pushing (>200Mbps).
>
>For instance,
>
>|---------------Dest----------------|
>|----AS Name/Num----|-bw,% of total-|
>   VZGNI-TRANSIT(19262)    174k;  39.00%
>          KOMTEL( 8881)     13k;   2.93%
>       <unknown>(28573)     12k;   2.64%
>     CNCGROUP-BB( 4837)     11k;   2.51%
>     ALTERNET-AS(  701)     11k;   2.49%
>
>
>I can't tell if my config is wrong or there's some limitation of the Sup32.
>The bw figures are way low.
>
>ip flow-export source Loopback0
>ip flow-export version 5 origin-as
>ip flow-export destination blah 4444
>
>
>interface Port-channel1
>   description to_core1:po1
>   ip address blah
>   ip route-cache flow
>   ip ospf authentication message-digest
>   ip ospf authentication-key
>   ipv6 enable
>end
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Tim Stevenson, tstevens at cisco.com
Routing & Switching CCIE #5561
Technical Marketing Engineer, Catalyst 6500
Cisco Systems, http://www.cisco.com
IP Phone: 408-526-6759
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