Cisco Netflow and required IOS image

Answered Question
Sep 1st, 2008
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Hi Team Netpro -


I am in the process of preparing documents regarding the deployment of Netflow version 5 for some 20 sites worldwide . I would like to know what IOS images can support this technology . Currently some of our routers are running the following IOS Images:


(C7200-SPSERVICESK9-M), Version 12.4(6)T, RELEASE SOFTWARE (fc1)

(C2800NM-SPSERVICESK9-M), Version 12.4(6)T, RELEASE SOFTWARE (fc1)

(C3845-SPSERVICESK9-M), Version 12.3(11)T10, RELEASE SOFTWARE (fc4)

(C3825-SPSERVICESK9-M), Version 12.4(6)T2, RELEASE SOFTWARE (fc1)

(C7200-IS-M), Version 12.4(7), RELEASE SOFTWARE (fc6)


Do you think we still need an IOS upgrade or not ?


Thank you in advance .

Jay



Correct Answer by JORGE RODRIGUEZ about 8 years 8 months ago

In addition to information provided by previous poster, I do not believe you need to upgrade with the current images you have running, most SPSERVICES k9 images 12.4 versions support netflow.


I also suggest to go over this link as well as the link provided before me.

http://www.cisco.com/en/US/docs/ios/12_4/netflow/configuration/guide/onf_gsg.html#wp1043332


you may verify in features lookup here in feature navigator http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp


another easy way to verify is by typing a question mark at cli without actually entering the command on the routers.


exmaple for this bellow very basic netflow script on a router place a question mark without actual placing command


interface

ip route-cache ?

ip route-cache flow


router(config)#ip flow-export ?

router(config)#ip flow-export version ? <-- should show all the versions supported 1,5,9, etc..

router(config)#ip flow-cache timeout ?

router(config)#ip flow-top-? <--- for top talkers sub-commands



ip flow-export destination

ip flow-export version 5

ip flow-cache timeout active 1

ip flow-cache timeout inactive 15


ip flow-top-talkers

top 10

sort-by bytes



(C3845-SPSERVICESK9-M), Version 12.3(11)T10, RELEASE SOFTWARE (fc4) < --- this one should also be able to support netflow




PLS rate any helpful post if it helps

Rgds

Jorge


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Correct Answer
JORGE RODRIGUEZ Mon, 09/01/2008 - 20:19
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In addition to information provided by previous poster, I do not believe you need to upgrade with the current images you have running, most SPSERVICES k9 images 12.4 versions support netflow.


I also suggest to go over this link as well as the link provided before me.

http://www.cisco.com/en/US/docs/ios/12_4/netflow/configuration/guide/onf_gsg.html#wp1043332


you may verify in features lookup here in feature navigator http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp


another easy way to verify is by typing a question mark at cli without actually entering the command on the routers.


exmaple for this bellow very basic netflow script on a router place a question mark without actual placing command


interface

ip route-cache ?

ip route-cache flow


router(config)#ip flow-export ?

router(config)#ip flow-export version ? <-- should show all the versions supported 1,5,9, etc..

router(config)#ip flow-cache timeout ?

router(config)#ip flow-top-? <--- for top talkers sub-commands



ip flow-export destination

ip flow-export version 5

ip flow-cache timeout active 1

ip flow-cache timeout inactive 15


ip flow-top-talkers

top 10

sort-by bytes



(C3845-SPSERVICESK9-M), Version 12.3(11)T10, RELEASE SOFTWARE (fc4) < --- this one should also be able to support netflow




PLS rate any helpful post if it helps

Rgds

Jorge


jocampo35116 Mon, 09/01/2008 - 20:22
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Hi Jorge -


Thank you for your reply . I have also tried this approach and was able to verify that all the existing IOS can support netflow .


Thank you very much for you help .


Respectfully ,

Jay

JORGE RODRIGUEZ Mon, 09/01/2008 - 20:28
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  • Green, 3000 points or more

Jay, Im glad I could be of help and you are very welcome..



Bst Rgds

Jorge

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