Showing results for 
Search instead for 
Did you mean: 

Mechanisms in gathering Traffic Matrix in Service Provider networks

Hi All,

We are planning to gather traffic matrix in our network. Our network comprises of Cisco devices (NPE-G1, NPE-G2, GSR, CRS, 7600, ISR-G1/2). Currently there is no traffic matrix calculation per service/COS that has been done in our network for capacity planning. We would like to start an exercise of gathering traffic matrix to account for POP to POP, PE to PE traffic for better visibility into our network.

Have gone through a NANOG presentation which explains about traffic matrix calculation "".

I tried doing MPLS traffic counters but that is not giving the correct value. BGP Policy Accounting is another option but I dont think it will work for MPLS VPN customers as majority of our traffic is through MPLS VPN.

Our network do not have point to point TE tunnels built between POP to POP to gather this  information.

I am exploring the option of "MPLS Aware Netflow" in "P" routers to gather this information.

I would like to hear from others who have done such kind of traffic matrix in their network along with its pros and cons  in the interim which would help me in effectively working out?

thanks in advance


Hall of Fame Expert


The   Author of this posting offers the information contained within this   posting without consideration and with the reader's understanding that   there's no implied or expressed suitability or fitness for any purpose.   Information provided is for informational purposes only and should not   be construed as rendering professional advice of any kind. Usage of  this  posting's information is solely at reader's own risk.

Liability Disclaimer

In   no event shall Author be liable for any damages whatsoever (including,   without limitation, damages for loss of use, data or profit) arising  out  of the use or inability to use the posting's information even if  Author  has been advised of the possibility of such damage.


You might want to move this question to one of the Service Providers community topics.