No Netflow Date Export on VS-S720-10G

odamis · ‎02-02-2010

I have 2 identical Cat6500 with VS-S720-10G (Dual Sup) IOS 12.2(33)SXH2a. Both Chassis have the same configuration. One of them exports the Netflow Date as expected. The other one exports 0 packets.

But I can see a lot of Flows on th CLI.

#sh mls netflow ip count
Displaying Netflow entries in Active Supervisor EARL in module 5

Number of shortcuts = 57626

#sh mls nde
Netflow Data Export enabled
Exporting flows to 10.2.171.99 (2055)
Exporting flows from 10.2.9.8 (61357)
Version: 5
Layer2 flow creation is disabled
Layer2 flow export is disabled
Include Filter not configured
Exclude Filter not configured
Total Netflow Data Export Packets are:
    0 packets, 0 no packets, 0 records
Total Netflow Data Export Send Errors:
        IPWRITE_NO_FIB = 0
        IPWRITE_ADJ_FAILED = 0
        IPWRITE_PROCESS = 0
        IPWRITE_ENQUEUE_FAILED = 0
        IPWRITE_IPC_FAILED = 0
        IPWRITE_OUTPUT_FAILED = 0
        IPWRITE_MTU_FAILED = 0
        IPWRITE_ENCAPFIX_FAILED = 0
        IPWRITE_CARD_FAILED = 0
Netflow Aggregation Disabled

Do you have any ideas why?

olaf

yjdabear · ‎02-02-2010

Can you post the IOS config, sanitized of course?

What does "show ip cache verbose flow" output?

odamis · ‎02-03-2010

Hi i post the netflow relevant config.

######

mls aging long 300
mls aging normal 120
mls netflow interface
mls flow ip interface-full
mls nde sender version 5
mls cef error action reset

!
interface GigabitEthernet3/48
description *****
ip address 10.171.2.1 255.255.255.252
ip flow ingress
!
interface GigabitEthernet4/48
description *****
ip address 10.171.2.13 255.255.255.252
ip flow ingress
!

interface Vlan40
description *****
ip address 10.2.7.2 255.255.255.240
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
standby 10 ip 10.2.7.1
standby 10 priority 150
standby 10 preempt delay minimum 90
!

ip flow-export source Loopback0
ip flow-export version 5
ip flow-export destination 10.2.171.99 2055
!

I have compared both configs of the Cat6500 and except of descriptions and IPs the configs were identically. With "sh mls netflow ip" i saw a lot of flows but no export.

So i have yesterday reconfigured all netflow relevant entries and configured new and now it works. Possible a config error or the incorrect order of commands.

I have no idea?

Thanks

olaf