NetFlow with Sup2T only one Interface

Unanswered Question
Aug 29th, 2012
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Hello,


we have on a VSS seven ethernet Layer 3 connections (OSPF) to our branch offices. As the Sup2T has improved netflow capabilities we have following configuration:



flow record CORE-FLOW

match ipv4 source address

match ipv4 destination address

match transport source-port

match transport destination-port

match flow direction

collect counter bytes

collect counter packets

collect timestamp sys-uptime first

collect timestamp sys-uptime last

!

!

flow exporter NETMANAG

destination 192.168.1.1

transport udp 9996

!

flow platform cache timeout fast

!

flow monitor CORE-MONITOR

record CORE-FLOW

exporter NETMANAG



interface GigabitEthernet2/3/1

description LAN 3856766

no switchport

ip address xxx.xxx.xxx 255.255.255.252

ip flow monitor FLOW-MONITOR input

ip flow monitor FLOW-MONITOR output

ip ospf dead-interval 15

ip ospf hello-interval 3

speed 100

duplex full

.

.

.

interface GigabitEthernet2/3/7

description LAN 3856773

  no switchport

ip address xxx.xxx.xxx 255.255.255.252

ip flow monitor FLOW-MONITOR input

ip flow monitor FLOW-MONITOR output



We use the NetFlow Analzer from ManageEngine. There are two problems with the flows from this VSS:


1. All flows are being displayed as a single Interface (IfIndex-1) and not 7 separately interfaces.

2. The flows from the VSS are only ingress no egress flows are recorded


Is there something wrong with the configuration above?


Thank you.



Chris

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