I create WAN reports from NetFlow that aggregate by the WAN interface. In my case I keep an intermediate mapping table of ifDescr -> ifIndex which is updated a couple of times a day from SNMP polling of the SNMP interfaces table ifEntry.
This has been adequate for us. There is a Cisco IOS command "snmp-server ifindex persist" which is supposed to keep indexes from changing, we investigated but never had a need to implement. There is plenty of info about this command at the Cisco web site. http://www.cisco.com/warp/public/477/SNMP/ifIndex_Persistence.html Geoff Bradford Principal Consultant International Network Services -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Goran Sorak Sent: Thursday, January 06, 2005 12:37 AM To: [email protected] Subject: [Flow-tools] Changeable ifIndex Can flow-tools deal with changeable ifIndex values associated with customers? Explanation: We want to get per-customer flow statistics. Customers are dynamically allocated ifIndex, but the ifAlias associated with the customer is fixed. Can we get per-customer based statistics if the only way to identify customer is ifAlias value? (per-interface aggregations work on ifIndex, so they are not valid for this case). (Probably not for this list, but: can cisco Flow collector deal with this case?) Thanks Goran ********************************************************************** If you receive this email in error, please let us know by reply email, delete it from your system and destroy any copies. We give no warranties in relation to the accuracy or completeness of the information contained in this email. This email is also subject to copyright. ********************************************************************** _______________________________________________ Flow-tools mailing list [EMAIL PROTECTED] http://mailman.splintered.net/mailman/listinfo/flow-tools _______________________________________________ Flow-tools mailing list [EMAIL PROTECTED] http://mailman.splintered.net/mailman/listinfo/flow-tools
