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Level 11

NetFlow for MPLS via subinterface

Greetings;

We have a branch office that received a circuit upgrade recently, and NPM/NTA has been experiencing difficulty collecting stats from the MPLS interfaces on both the Cisco 2951K9 routers ever since.


I believe that one area of concern may be the interface config statements for SNMP and NetFlow, which may be preventing our tools from getting to SNMP and NetFlow data from specific interfaces.

This circuit is spec'ed at 6MB up and down.


I have included a couple examples that are likely causing failures to get interface utilization data for the MPLS subinterface, and inconsistent reporting of NetFlow data for the MPLS circuit.

The question is whether or not the subinterface is configured correctly to support NetFlow export:


interface GigabitEthernet0/3/0

description Verizon MPLS VPN: AmericanIntl; Site-Circuit: miami-fl_bcbk3ppc0001-XXXX

bandwidth 6000

no ip address

load-interval 30

duplex full

speed 100

service-policy input Verify_QOS_IN

service-policy output QOS_OUT

!

interface GigabitEthernet0/3/0.20

description Verizon MPLS VPN: AmericanIntl; Site-Circuit: miami-fl_bcbk3ppc0001-XXXX

encapsulation dot1Q 20

ip address 206.114.86.58 255.255.255.252

ip flow ingress

!

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