[j-nsp] how to measure traffic between ASs from an M7i box - [SPF] Sender is forged (SPF Fail)

Correa Adolfo acorrea at mcmtelecom.com.mx
Thu Dec 9 14:44:55 EST 2010


Hi,

Thanks for the response.

In fact I think the best option is to export the flow simples to an external flow collector (Scrutinizer), the later can filter by AS but only if the flow comes labeled with AS from the router.

Anybody knows how can I enable AS labeling at the jflow of an M7i?

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Cristian Frizziero
Sent: martes, 07 de diciembre de 2010 12:02 p.m.
To: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] how to measure traffic between ASs from an M7i box - [SPF] Sender is forged (SPF Fail)

Hi Adolfo.

What kind of traffic measurement do you want to realize?

In the more simple case I would use the monitor interface traffic detail
command: i guess that this is not the best for you, beacuse you want to
measure traffic between AS not contiguos. You will not be able to
differentiate it.

On the other hand: the only thing you can do with a M7i to analize
traffic (but only if you have a CFEB-E with the Multiservice Adaptive
Module installed) is to use the cflowd active monitoring: this allows
you to obtain various types of byte and packet counts of flows through a
router.

Look at this link to get more info:

http://www.juniper.net/techpubs/software/junos/junos70/swconfig70-policy/html/sampling-config20.html

Hope it will be useful to you.

Cristian Frizziero





El 07/12/2010 13:34, Correa Adolfo escribió:
> Hi I want to measure the traffic between my own AS and a remote (not directly connected) AS directly from an M7i box, how would it increase CPU usage?
>
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> juniper-nsp mailing list juniper-nsp at puck.nether.net
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