[c-nsp] Catalist 3550 need help with NetFlow

[Nikolay Pavlov]

Hi, folks.

I want to export flows from my Catalyst 3550. 
I have enabled "ip flow ingress" on all my Vlan interfaces and configured
ip flow-export version 5
ip flow-export destination xx.xx.48.25 3000
on Global config. But command "ip flow export" shows nothing:

Flow export v5 is enabled for main cache
  Exporting flows to xx.xx.48.25 (3000)
  Exporting using source IP address xx.xx.48.6
  Version 5 flow records
  0 flows exported in 0 udp datagrams
  0 flows failed due to lack of export packet
  0 export packets were sent up to process level

For example here is config of my Vlan 27:

interface Vlan27
 ip address xx.xx.7.10 255.255.255.252
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip flow ingress

cs3550-Border-TOR#sh ip int Vlan 27
Vlan27 is up, line protocol is up
  Internet address is xx.xx.7.10/30
  Broadcast address is 255.255.255.255
  Address determined by non-volatile memory
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is disabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are never sent
  ICMP unreachables are never sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP Flow switching is disabled
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  IP CEF switching is enabled
  IP CEF switching turbo vector

Any suggestions?

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= Best regards, Nikolay Pavlov. <<<--------------------------------------- =
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