[j-nsp] IPFIX Egress Flow not working - MX80

Arun Kumar narain.arun at gmail.com
Thu Mar 22 05:26:12 EDT 2012


Hi Andy,

Thanks for your reply. I will try to move to another interface and check.

thanks
Arun

On Wed, Mar 21, 2012 at 8:29 PM, Andrew Nusbaum <
Andrew.Nusbaum at mindspark.com> wrote:

> > What would be the issue in the second router which is not exporting
> > output
> > flows? Any bugs discovered so far?
>
> I've got a couple of MX240s with MPC-1s running inline-jflow on 10.4R9 and
> actually ran into PR737472.  Sampling input and output on all but one
> transit interface was working fine.  Any traffic that ingressed this
> particular interface would have flows created with the InputInt and
> OutputInt marked '0' as opposed to the SNMP ID of the logical interface.
>  Also got bogus AS numbers, no masks, and a 0.0.0.0 next-hop.  Saw the same
> behavior even if I moved the sampling to the internal-facing interfaces.
>  We were able to work around the problem by moving the affected interface
> to another PIC/Port until Juniper rolls the fix into production code.  My
> understanding is that this affects 11.x code as well.
>
> Example flow export before workaround:
>
> > Flow 9
> > SrcAddr: x.x.x.54 (x.x.x.54)
> > DstAddr: y.y.y.128 (y.y.y.128) IP TOS: 0x00
> > Protocol: 6
> > SrcPort: 2001
> > DstPort: 80
> > ICMP Type: 0
> > InputInt: 0
> > SrcMask: 0
> > DstMask: 0
> > SrcAS: 21107
> > DstAS: 21107
> > NextHop: 0.0.0.0 (0.0.0.0)
> > TCP Flags: 0x1b
> > OutputInt: 0
> > Octets: 943
> > Packets: 16
> > Duration: 1.916000000 seconds
>
>
> Andy Nusbaum  |  Senior Network Engineer
> One North Lexington Ave, 9th Floor - White Plains, NY 10601
> E andrew.nusbaum at mindspark.com
>
> Mindspark Interactive Network, Inc. is an IAC company.
>


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