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

[Anrey Teslenko]

As result of my correspondence with cisco TAC now I have some
investigation for this problem
mls nde works on PFC EARL7/7.5 and only for ipv4 packets ingress.
mls nde for ingress mpls frames not supported for 7600/6500 and  "MPLS
aware netflow" feature not supported too.

So in our case when we have PHP disabled on PE routers we can not
collect any netflow statistic on links faced to P-routers.

Apotheosis
mpls2mpls traffic can not be calculated for 7600 platforms in principle

2012/7/4, Anrey Teslenko <teslenko.andrey at gmail.com>:
> Counters too small because I cleared it before check again.
>
> We use IOS 12.2SRE3 on Cisco 76-x series.
> We have SIP and WX6708 LAN card faced in MPLS core.
>
> Our config for Netflow are
>
> mls nde sender version 5
> mls netflow usage notify 80 120
> mls sampling packet-based 1024 8096
> mls flow ip interface-destination-source
> ip flow-export source Loopback0
> ip flow-export version 5 origin-as
> ip flow-export destination xx.xx.xx.xx nnn
>
>
> and per L3 interface
>
> ip flow ingress
> mls netflow sampling
>
> Moreover.
> I have problem only with routers which exported flows via MPLS cloud.
> Routers which use shared L3 segment with collector no have this
> problem.
>
> Network topology
>
>                   Collector
>                         /\
>                       /    \
>                      /      \
>                  PE1    PE2
>                     \        /
>                       \     /
>                          P
>                          |
>    PE3 -- P -- MPLS -- P --PE4
>                          |
>                          P
>                          |
>                        PE5
>
> PE1 & PE2 have not any problem with flow expot.
>
> PE3, PE4, PE5 have similar problem -- this empty NDE counter
>
> All routers have PHP disabled.
>
>
> 2012/7/3, Phil Mayers <p.mayers at imperial.ac.uk>:
>> On 03/07/12 14:44, Anrey Teslenko wrote:
>>> 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
>>
>> You haven't given enough information to help you.
>>
>> The counters are "too small" - what does that mean?
>>
>> Be specific. Give an example, and show the interface config / routing
>> topology for the hosts in the example.
>>
>> What linecards are you using? LAN cards, SIP, ES+, what?
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>