[j-nsp] Mirroring packets in an LSP

[Joe Metzger]

Alex,
I have thought about physical taps but that is not
practical in my environment.

--Joe

On Nov 3, 2009, at 5:44 AM, Alex wrote:

> Hi Joe,
> I never tried this myself but it might work:
> 1/ buy an Y-splitter cable(s) and connect attenuated end(s) to an  
> unused router port(s).
> 2/ configure "pop-all-labels" on that port or ports
> http://www.juniper.net/techpubs/en_US/junos9.6/information-products/topic-collections/config-guide-services/services-enabling-passive-flow-monitoring.html#id-11327781
> 3/ And from there you could port-mirror the traffic to another port  
> with analyser attached or next-hop-group.
> Rgds
> Alex
>
>
> ----- Original Message ----- From: "Joe Metzger" <metzger at es.net>
> To: <juniper-nsp at puck.nether.net>
> Sent: Monday, November 02, 2009 7:29 PM
> Subject: [j-nsp] Mirroring packets in an LSP
>
>
>> Hi,
>> Does anybody know of a way to mirror traffic traversing an LSP
>> on a transit router?
>>
>> I am trying to characterize the changes in inter-packet gaps
>> on tcp flows transiting LSPs across the network.  I can tap the  
>> flows on
>> the edge routers, but I want to look at them at a midpoint if
>> possible.
>>
>>
>> Joe Metzger
>> metzger at es.net
>>
>>
>>
>> _______________________________________________
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>

Joe Metzger
metzger at es.net