Duplicate Outbound Flows

Date view Thread view Subject view Author view

Subject: Duplicate Outbound Flows
From: Alvin Garrison (agarrison@smartechcorp.net)
Date: Wed Feb 26 2003 - 14:09:55 CST 

Hello,
I have recently installed flowscan and everything works fine, except that I
am getting duplicate outbound flows in the reports.  Below is how my network
is configured.  I am only getting duplicate flows going to UpStreamB.

UpStreamA      UpStreamB
     |                           |
CiscoA ---------- CiscoB ---- Wan Customers
     |                           |
Switch --------------|
     |
Customers

All non local traffic is initially routed from the switch to CiscoA which
then either routes it out to UpStreamA or to CiscoB.  I have it set up this
way in case CiscoA fails then the switch will change it's default route to
CiscoB.  I have NetFlow enabled on all 6 of the Cisco interfaces.

I have Campus.cf configured with the NextHops of my UpStream providers and
LocalNextHops with the 4 IP address on the Cisco interfaces not to an
upstream provider.  I turned verbose to 2 in the cf files and got messages
stating 'Skipping "inbound" candidate flow messages'.  However, these
messages are only for flows destined for the local subnets that I have
defined and no messages involving outbound traffic subnets.

I was wondering if there is a workaround for the above other than turning
NetFlow off on the internal interfaces of CiscoB or if there was something
that I could change in the configuration.

Any help would be appreciated.

Alvin Garrison


--
Help        mailto:majordomo@net.doit.wisc.edu and say "help" in message body
Unsubscribe mailto:majordomo@net.doit.wisc.edu and say
"unsubscribe flowscan" in message body
Archive     http://net.doit.wisc.edu/~plonka/list/flowscan/archive/

Date view Thread view Subject view Author view

This archive was generated by hypermail 2b25 : Wed Feb 26 2003 - 14:12:43 CST