I have added a couple of cisco 2800s that service a voip envirnment and I am trting to see the inbound and outbound on the gig interfaces. After the routers are configured and added to scrutinizer, version 7.3.2 (7.3.2.7164). I see both gig interfaces along with an instance 0 and instance 3 for each router. the gig interfaces show statistics for both directions. instance 0 shows traffic in only outbound while instance 3 shows inbound.

The only interfaces active on each router are the gig 0/0 and gig 0/1 as well as a voice T1.


ip flow-export source Loopback0
ip flow-export version 5
ip flow-export destination <cut> 2055

interface GigabitEthernet0/0
ip address <cut>
no ip unreachables
no ip proxy-arp
ip flow ingress
ip flow egress
duplex auto
speed auto


I suspect that I am not getting full statitstics on the gig interfaces and some portion of the data is associated to these "instances"

Any help in figuring this out would be appreciated.

Thanks.

Are you only exporting from GigabitEthernet0/0?

I believe that Netflow v5 only supports ingress flows.
The easiest way to make sure you are getting all the flow data is to enable ingress flows on each interface on the router and remove the egress.

If it is absolutely imperative that you use one interface with ingress and egress enabled, I would change the export version to v9. You will definitely get ingress and egress flows this way.

I hope this helps. Please let us know how this works out for you.

~Mike K.

I am exporting from only the loopback, the 2 gig interfaces on each router are configured for both ingress and egress.

When I initially set it up the interfacess were only showing traffic inbound until I added the ip flow egress conmmands on the interfaces.

I'll give version 9 a shot and see what happens.

I have changed the export to version 9 and am using ingress only.

After bringing the device into scrutinizer I have both gig interfaces which are showing inbound traffic only. I also have an instance 0 which is showing inbound traffic.

Also, an ood thing, the statistics for instance 0 show outbound traffic only yet all of the destination addresses are adresses used on the router itself.

Not sure where to go from here.

Using NetFlow v9, you can configure the interface to export both ingress and egress and then you should see both inbound and outbound for the interface(s) you have configured with ingress and egress.

Maybe I can skin this cat another way. Is there a way that Scrutinizer can collect voice t1 statistics from a cisco router?

Thats pretty much all the router is for is to connect to the PSTN.

Thanks in advance.

I am going to make a guess here, since your voice t1 does not have IP, your loopback interface(0) is the source of all the IP voip traffic.
Anything the router is processing is going to come from that interface, not the t1.

Have you enabled Netflow on your loopback/gateway interface(s)? Although you should be seeing this if ingress and egress is on the interfaces, I would give that a try.