[c-nsp] Netflow + MPLS issue on PE routers

[Anrey Teslenko]

This command was enabled. Perhaps in my router there is software bug.
 I have empty counter in NDE, but for "flow export" counter is not empty

sh mls nde
 Netflow Data Export enabled
 Exporting flows to  yy.yy.yy.yy (nnn)
 Exporting flows from xx.xx.xx.xx (nnn)
 Version: 5
 Layer2 flow creation is disabled
 Layer2 flow export is disabled
 Include Filter not configured
 Exclude Filter not configured
 Total Netflow Data Export Packets are:
    0 packets, 0 no packets, 0 records

sh ip flow export
Flow export v5 is enabled for main cache
  Export source and destination details :
  VRF ID : Default
    Source(1)       xx.xx.xx.xx (Loopback0)
    Destination(1)  yy.yy.yy.yy (nnn)
  Version 5 flow records, origin-as
   5457 flows exported in 185 udp datagrams




2012/7/3, JC Cockburn <ccie15385 at gmail.com>:
> Hi,
> This always comes up...
> Try adding this command
>
> mls nde sender
>
> should be OK then...
> Ciao
> JC
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Anrey Teslenko
> Sent: Tuesday, July 03, 2012 12:19 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Netflow + MPLS issue on PE routers
>
> Hello!
>
> We are exporting netlfow statistic from our PE routers (C7600).
>
> We use flow export v5. Netflow collector is Flow-capture.
> We observed that  statistic which we exported are not correct.
> Too small amounts of traffic in statistic compared to the actual value
>
> PHP is disabled on PE routers (for some reason) so packages have MPLS
> header.
> We think this is main cause why  we didn't receive properly statistics.
> But PHP must be disabled for us.
>
> My question is:
> What should we do to recive a correct statistic?
> Could we enable only flow export v9 to fix that?
> or maybe
> Could we enable only "ip flow egress" per downlink interfaces? If this
> possible  for 7600.
>
> What are you think about "MPLS-aware NetFlow"? Could it to help us?
>
> Thanks in advance.
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